mirror of
https://github.com/eddyem/stm32samples.git
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start with RTC for G0
This commit is contained in:
Edward Emelianov
parent
b1c8012e11
commit
5066fcf3c2
164
G0:G070/RTC/Makefile
Normal file
164
G0:G070/RTC/Makefile
Normal file
@ -0,0 +1,164 @@
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BINARY = rtc
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BOOTPORT ?= /dev/ttyUSB0
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BOOTSPEED ?= 115200
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# MCU FAMILY
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FAMILY = G0
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# MCU code
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MCU = G070xx
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#DEFS = -DEBUG -g3
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# change this linking script depending on particular MCU model,
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# for example, if you have STM32F103VBT6, you should write:
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LDSCRIPT = stm32g070xb.ld
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INDEPENDENT_HEADERS=
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FP_FLAGS ?= -msoft-float
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ASM_FLAGS = -mthumb -mcpu=cortex-m0plus -march=armv6-m -mtune=cortex-m0plus
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ARCH_FLAGS = $(ASM_FLAGS) $(FP_FLAGS)
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# autoincremental version & build date
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VERSION_FILE = version.inc
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ifeq ($(shell test -e $(VERSION_FILE) && echo -n yes), yes)
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NEXTVER := $(shell expr $$(awk '/#define BUILD_NUMBER/' $(VERSION_FILE) | tr -cd "[0-9]") + 1)
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else
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NEXTVER := "1"
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endif
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BUILDDATE := $(shell date +%Y-%m-%d)
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###############################################################################
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# Executables
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PREFIX ?= /opt/bin/arm-none-eabi
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RM := rm -f
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RMDIR := rmdir
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SIZE := $(PREFIX)-size
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CC := $(PREFIX)-gcc
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LD := $(PREFIX)-gcc
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AR := $(PREFIX)-ar
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AS := $(PREFIX)-as
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OBJCOPY := $(PREFIX)-objcopy
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OBJDUMP := $(PREFIX)-objdump
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GDB := $(PREFIX)-gdb
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STFLASH := $(shell which st-flash)
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STBOOT := $(shell which stm32flash)
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###############################################################################
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# Source files
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OBJDIR = mk
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LDSCRIPT ?= $(BINARY).ld
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SRC := $(wildcard *.c)
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OBJS := $(addprefix $(OBJDIR)/, $(SRC:%.c=%.o))
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STARTUP = $(OBJDIR)/startup.o
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OBJS += $(STARTUP)
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DEPS := $(OBJS:.o=.d)
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INC_DIR ?= ../inc
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INCLUDE := -I$(INC_DIR)/Fx -I$(INC_DIR)/cm
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LIB_DIR := $(INC_DIR)/ld
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###############################################################################
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# C flags
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CFLAGS += -O2 -MD -D__thumb2__=1
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CFLAGS += -Wall -Werror -Wextra -Wshadow -Wimplicit-function-declaration
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CFLAGS += -Wredundant-decls $(INCLUDE)
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# -Wmissing-prototypes -Wstrict-prototypes
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CFLAGS += -fno-common -ffunction-sections -fdata-sections -flto
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###############################################################################
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# Linker flags
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LDFLAGS += --static -nostartfiles --specs=nano.specs -flto
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LDFLAGS += -L$(LIB_DIR)
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LDFLAGS += -T$(LDSCRIPT)
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LDFLAGS += -Wl,-Map=$(OBJDIR)/$(BINARY).map
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LDFLAGS += -Wl,--gc-sections
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###############################################################################
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# Used libraries
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LDLIBS += -Wl,--start-group -lc -lgcc -Wl,--end-group
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LDLIBS += $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
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DEFS += -DSTM32$(FAMILY) -DSTM32$(MCU)
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#.SUFFIXES: .elf .bin .hex .srec .list .map .images
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#.SECONDEXPANSION:
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#.SECONDARY:
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ELF := $(OBJDIR)/$(BINARY).elf
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LIST := $(OBJDIR)/$(BINARY).list
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BIN := $(BINARY).bin
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HEX := $(BINARY).hex
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all: bin list size
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elf: $(ELF)
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bin: $(BIN)
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hex: $(HEX)
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list: $(LIST)
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ifneq ($(MAKECMDGOALS),clean)
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-include $(DEPS)
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endif
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$(OBJDIR):
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mkdir $(OBJDIR)
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$(STARTUP): $(INC_DIR)/startup/vector.c
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$(CC) $(CFLAGS) $(DEFS) $(INCLUDE) $(ARCH_FLAGS) -o $@ -c $<
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$(VERSION_FILE): *.[ch]
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[ -f $(VERSION_FILE) ] || echo -e "#define BUILD_NUMBER \"0\"\n#define BUILD_DATE \"none\"" > $(VERSION_FILE)
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@echo " Generate version: $(NEXTVER) for date $(BUILDDATE)"
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@sed -i "s/#define BUILD_NUMBER.*/#define BUILD_NUMBER \"$(NEXTVER)\"/" $(VERSION_FILE)
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@sed -i "s/#define BUILD_DATE.*/#define BUILD_DATE \"$(BUILDDATE)\"/" $(VERSION_FILE)
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# Uncomment and rename file, which includes version.inc
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#$(OBJDIR)/proto.o: proto.c $(VERSION_FILE)
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$(OBJDIR)/%.o: %.c
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@echo " CC $<"
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$(CC) $(CFLAGS) $(DEFS) $(INCLUDE) $(ARCH_FLAGS) -o $@ -c $<
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#$(OBJDIR)/%.d: %.c $(OBJDIR)
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# $(CC) -MM -MG $< | sed -e 's,^\([^:]*\)\.o[ ]*:,$(@D)/\1.o $(@D)/\1.d:,' >$@
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$(BIN): $(ELF)
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@echo " OBJCOPY $(BIN)"
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$(OBJCOPY) -Obinary $(ELF) $(BIN)
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$(HEX): $(ELF)
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@echo " OBJCOPY $(HEX)"
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$(OBJCOPY) -Oihex $(ELF) $(HEX)
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$(LIST): $(ELF)
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@echo " OBJDUMP $(LIST)"
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$(OBJDUMP) -S $(ELF) > $(LIST)
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$(ELF): $(OBJDIR) $(OBJS)
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@echo " LD $(ELF)"
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$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJS) $(LDLIBS) -o $(ELF)
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clean:
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@echo " CLEAN"
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$(RM) $(OBJS) $(DEPS) $(ELF) $(HEX) $(LIST) $(OBJDIR)/*.map
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@rmdir $(OBJDIR) 2>/dev/null || true
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size: $(ELF)
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$(SIZE) -Ax $(ELF)
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flash: $(BIN)
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@echo " FLASH $(BIN)"
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$(STFLASH) write $(BIN) 0x8000000
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boot: $(BIN)
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@echo " LOAD $(BIN) through bootloader"
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$(STBOOT) -b$(BOOTSPEED) $(BOOTPORT) -w $(BIN)
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openocd:
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openocd -f openocd.cfg
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dbg:
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arm-none-eabi-gdb $(ELF) -ex 'target extended-remote localhost:3333' -ex 'monitor reset halt'
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.PHONY: clean flash boot size openocd dbg
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10
G0:G070/RTC/README
Normal file
10
G0:G070/RTC/README
Normal file
@ -0,0 +1,10 @@
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Simplest work with RTC
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Proto:
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t - print current Tms
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T - print current Time like 'Mon Jan 1 00:05:19 2001'
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Button press - print current time @ usart3
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71
G0:G070/RTC/main.c
Normal file
71
G0:G070/RTC/main.c
Normal file
@ -0,0 +1,71 @@
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/*
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* This file is part of the rtc project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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||||||
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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||||||
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stm32g0.h>
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#include "proto.h"
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#include "rtc.h"
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#include "strfunc.h"
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#include "usart.h"
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// KEY (intpullup->0) - PC0
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// LED - PC8
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volatile uint32_t Tms = 0;
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/* Called when systick fires */
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void sys_tick_handler(void){
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++Tms;
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}
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static void gpio_setup(void){
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RCC->IOPENR |= RCC_IOPENR_GPIOCEN; // enable PC
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// set PC8 as opendrain output, PC0 is pullup input, other as default (AIN)
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GPIOC->MODER = (0xffffffff & ~(GPIO_MODER_MODE8 | GPIO_MODER_MODE0)) | GPIO_MODER_MODER8_O;
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GPIOC->PUPDR = GPIO_PUPDR0_PU; // pullup
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GPIOC->OTYPER = GPIO_OTYPER_OT8; // open drain
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}
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int main(void){
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StartHSE();
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rtc_setup();
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SysTick_Config(8000); // 1ms counter
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gpio_setup();
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usart3_setup();
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uint32_t T = 0;
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int sent = 0;
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/* Do nothing in main loop */
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while (1){
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if(Tms - T > 499){ // blink LED
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T = Tms;
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pin_toggle(GPIOC, 1<<8);
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usart3_sendbuf();
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}
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if(pin_read(GPIOC, 1<<0) == 0){ // key pressed - send time over USART
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if(!sent){
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print_curtime();
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sent = 1;
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}
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}else sent = 0;
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int wasbo = 0;
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char *rcv = usart3_getline(&wasbo);
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if(wasbo) usart3_sendstr("Buffer overflow occured @ last message\n");
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if(rcv) rcv = parse_cmd(rcv);
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if(rcv) usart3_sendstr(rcv);
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}
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}
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89
G0:G070/RTC/openocd.cfg
Normal file
89
G0:G070/RTC/openocd.cfg
Normal file
@ -0,0 +1,89 @@
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# script for stm32g0x family
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#
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# stm32g0 devices support SWD transports only.
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#
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||||||
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source [find interface/stlink.cfg]
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||||||
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source [find target/swj-dp.tcl]
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||||||
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source [find mem_helper.tcl]
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||||||
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||||||
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if { [info exists CHIPNAME] } {
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set _CHIPNAME $CHIPNAME
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} else {
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set _CHIPNAME stm32g0x
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}
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||||||
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set _ENDIAN little
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# Work-area is a space in RAM used for flash programming
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# Smallest proposed target has 8kB ram, use 4kB by default to avoid surprises
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if { [info exists WORKAREASIZE] } {
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set _WORKAREASIZE $WORKAREASIZE
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} else {
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set _WORKAREASIZE 0x1000
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}
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|
#jtag scan chain
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if { [info exists CPUTAPID] } {
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set _CPUTAPID $CPUTAPID
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||||||
|
} else {
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||||||
|
# Section 37.5.5 - corresponds to Cortex-M0+
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|
set _CPUTAPID 0x0bc11477
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|
}
|
||||||
|
|
||||||
|
swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
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||||||
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dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
|
||||||
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|
||||||
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set _TARGETNAME $_CHIPNAME.cpu
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||||||
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target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
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||||||
|
|
||||||
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$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
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||||||
|
|
||||||
|
set _FLASHNAME $_CHIPNAME.flash
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||||||
|
flash bank $_FLASHNAME stm32l4x 0 0 0 0 $_TARGETNAME
|
||||||
|
|
||||||
|
# reasonable default
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||||||
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adapter speed 2000
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||||||
|
|
||||||
|
adapter srst delay 100
|
||||||
|
if {[using_jtag]} {
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||||||
|
jtag_ntrst_delay 100
|
||||||
|
}
|
||||||
|
|
||||||
|
reset_config srst_nogate
|
||||||
|
|
||||||
|
if {![using_hla]} {
|
||||||
|
# if srst is not fitted use SYSRESETREQ to
|
||||||
|
# perform a soft reset
|
||||||
|
cortex_m reset_config sysresetreq
|
||||||
|
}
|
||||||
|
|
||||||
|
proc stm32g0x_default_reset_start {} {
|
||||||
|
# Reset clock is HSI16 (16 MHz)
|
||||||
|
adapter speed 2000
|
||||||
|
}
|
||||||
|
|
||||||
|
proc stm32g0x_default_examine_end {} {
|
||||||
|
# DBGMCU_CR |= DBG_STANDBY | DBG_STOP
|
||||||
|
mmw 0x40015804 0x00000006 0
|
||||||
|
|
||||||
|
# Stop watchdog counters during halt
|
||||||
|
# DBGMCU_APB1_FZ |= DBG_IWDG_STOP | DBG_WWDG_STOP
|
||||||
|
mmw 0x40015808 0x00001800 0
|
||||||
|
}
|
||||||
|
|
||||||
|
proc stm32g0x_default_reset_init {} {
|
||||||
|
# Increase clock to 64 Mhz
|
||||||
|
mmw 0x40022000 0x00000002 0x00000005 ;# FLASH_ACR: Latency = 2
|
||||||
|
mww 0x4002100C 0x30000802 ;# RCC_PLLCFGR = PLLR=/2, PLLN=8, PLLM=/1, PLLSRC=0x2
|
||||||
|
mmw 0x40021000 0x01000000 0x00000000 ;# RCC_CR |= PLLON
|
||||||
|
mmw 0x40021008 0x00000002 0x00000005 ;# RCC_CFGR: SW=PLLRCLK
|
||||||
|
|
||||||
|
# Boost JTAG frequency
|
||||||
|
adapter speed 4000
|
||||||
|
}
|
||||||
|
|
||||||
|
# Default hooks
|
||||||
|
$_TARGETNAME configure -event examine-end { stm32g0x_default_examine_end }
|
||||||
|
$_TARGETNAME configure -event reset-start { stm32g0x_default_reset_start }
|
||||||
|
$_TARGETNAME configure -event reset-init { stm32g0x_default_reset_init }
|
||||||
83
G0:G070/RTC/proto.c
Normal file
83
G0:G070/RTC/proto.c
Normal file
@ -0,0 +1,83 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stm32g0.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "rtc.h"
|
||||||
|
#include "strfunc.h"
|
||||||
|
#include "usart.h"
|
||||||
|
|
||||||
|
extern volatile uint32_t Tms;
|
||||||
|
|
||||||
|
const char *helpstring =
|
||||||
|
"t - print current Tms\n"
|
||||||
|
"T - print current Time\n"
|
||||||
|
;
|
||||||
|
|
||||||
|
TRUE_INLINE void putch(char x){
|
||||||
|
usart3_send(&x, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const char *weekdays[] = {"Mon", "Tue", "Wed", "Thur", "Fri", "Sat", "Sun"};
|
||||||
|
static const char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec"};
|
||||||
|
|
||||||
|
static void prezero(uint8_t x){
|
||||||
|
if(x < 10){ putch('0'); putch('0' + x);}
|
||||||
|
else USND(u2str(x));
|
||||||
|
}
|
||||||
|
|
||||||
|
void print_curtime(){
|
||||||
|
rtc_t t;
|
||||||
|
get_curtime(&t);
|
||||||
|
USND(weekdays[t.day - 1]);
|
||||||
|
putch(' ');
|
||||||
|
USND(months[t.month - 1]);
|
||||||
|
putch(' ');
|
||||||
|
USND(u2str(t.day));
|
||||||
|
putch(' ');
|
||||||
|
prezero(t.hour);
|
||||||
|
putch(':');
|
||||||
|
prezero(t.minute);
|
||||||
|
putch(':');
|
||||||
|
prezero(t.second);
|
||||||
|
USND(" 20"); prezero(t.year);
|
||||||
|
putch('\n');
|
||||||
|
}
|
||||||
|
|
||||||
|
char *parse_cmd(char *buf){
|
||||||
|
// "long" commands
|
||||||
|
/* switch(*buf){
|
||||||
|
}*/
|
||||||
|
// "short" commands
|
||||||
|
if(buf[1]) return buf; // echo wrong data
|
||||||
|
switch(*buf){
|
||||||
|
case 't':
|
||||||
|
USND("T=");
|
||||||
|
USND(u2str(Tms));
|
||||||
|
putch('\n');
|
||||||
|
break;
|
||||||
|
case 'T':
|
||||||
|
print_curtime();
|
||||||
|
break;
|
||||||
|
default: // help
|
||||||
|
USND(helpstring);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
22
G0:G070/RTC/proto.h
Normal file
22
G0:G070/RTC/proto.h
Normal file
@ -0,0 +1,22 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
char *parse_cmd(char *buf);
|
||||||
|
void print_curtime();
|
||||||
BIN
G0:G070/RTC/rtc.bin
Executable file
BIN
G0:G070/RTC/rtc.bin
Executable file
Binary file not shown.
61
G0:G070/RTC/rtc.c
Normal file
61
G0:G070/RTC/rtc.c
Normal file
@ -0,0 +1,61 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stm32g0.h>
|
||||||
|
|
||||||
|
#include "rtc.h"
|
||||||
|
|
||||||
|
#ifndef WAITWHILE
|
||||||
|
#define WAITWHILE(x) do{register uint32_t StartUpCounter = 0; while((x) && (++StartUpCounter < 0xffffff)){nop();}}while(0)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
void rtc_setup(){
|
||||||
|
PWR->CR1 |= PWR_CR1_DBP; // disable RTC write protection
|
||||||
|
// turn on LSE and switch RTC to it
|
||||||
|
RCC->APBENR1 |= RCC_APBENR1_RTCAPBEN;
|
||||||
|
RCC->BDCR = RCC_BDCR_LSEON;
|
||||||
|
WAITWHILE(!(RCC->BDCR & RCC_BDCR_LSERDY));
|
||||||
|
RCC->BDCR |= RCC_BDCR_RTCEN | RCC_BDCR_RTCSEL_0;
|
||||||
|
// unlock RCC
|
||||||
|
RTC->WPR = 0xCA;
|
||||||
|
RTC->WPR = 0x53;
|
||||||
|
RTC->ICSR |= RTC_ICSR_INIT;
|
||||||
|
WAITWHILE(!(RTC->ICSR & RTC_ICSR_INITF));
|
||||||
|
RTC->PRER = (0x7f << RTC_PRER_PREDIV_A_Pos) | 0xff; // prediv_a = 127, prediv_s = 255
|
||||||
|
// here we can init starting time: monday of 1 jan 2001, 00:00:00
|
||||||
|
// RTC->DR = 1 << RTC_DR_YU_Pos | 1 << RTC_DR_WDU_Pos | 1 << RTC_DR_MU_Pos | 1 << RTC_DR_DU_Pos;
|
||||||
|
// RTC->TR = 0;
|
||||||
|
// RTC->CR is default - 0
|
||||||
|
// now turn off INIT bit, RTC will go on
|
||||||
|
RTC->ICSR &= ~RTC_ICSR_INIT;
|
||||||
|
}
|
||||||
|
|
||||||
|
void get_curtime(rtc_t *t){
|
||||||
|
WAITWHILE(!(RTC->ICSR & RTC_ICSR_RSF));
|
||||||
|
register uint32_t r = RTC->TR;
|
||||||
|
#define BCDu(shift) ((r >> shift) & 0xf)
|
||||||
|
t->second = BCDu(RTC_TR_SU_Pos) + 10 * BCDu(RTC_TR_ST_Pos);
|
||||||
|
t->minute = BCDu(RTC_TR_MNU_Pos) + 10 * BCDu(RTC_TR_MNT_Pos);
|
||||||
|
t->hour = BCDu(RTC_TR_HU_Pos) + 10 * BCDu(RTC_TR_HT_Pos);
|
||||||
|
r = RTC->DR;
|
||||||
|
t->day = BCDu(RTC_DR_DU_Pos) + 10 * BCDu(RTC_DR_DT_Pos);
|
||||||
|
t->month = BCDu(RTC_DR_MU_Pos);
|
||||||
|
if(r & RTC_DR_MT) t->month += 10;
|
||||||
|
t->weekday = (r >> RTC_DR_WDU_Pos) & 0x7;
|
||||||
|
t->year = BCDu(RTC_DR_YU_Pos) + 10 * BCDu(RTC_DR_YT_Pos);
|
||||||
|
}
|
||||||
1
G0:G070/RTC/rtc.cflags
Normal file
1
G0:G070/RTC/rtc.cflags
Normal file
@ -0,0 +1 @@
|
|||||||
|
-std=c17
|
||||||
3
G0:G070/RTC/rtc.config
Normal file
3
G0:G070/RTC/rtc.config
Normal file
@ -0,0 +1,3 @@
|
|||||||
|
#define EBUG
|
||||||
|
#define STM32G0
|
||||||
|
#define STM32G070xx
|
||||||
1
G0:G070/RTC/rtc.creator
Normal file
1
G0:G070/RTC/rtc.creator
Normal file
@ -0,0 +1 @@
|
|||||||
|
[General]
|
||||||
171
G0:G070/RTC/rtc.creator.user
Normal file
171
G0:G070/RTC/rtc.creator.user
Normal file
@ -0,0 +1,171 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<!DOCTYPE QtCreatorProject>
|
||||||
|
<!-- Written by QtCreator 8.0.2, 2022-12-22T21:13:47. -->
|
||||||
|
<qtcreator>
|
||||||
|
<data>
|
||||||
|
<variable>EnvironmentId</variable>
|
||||||
|
<value type="QByteArray">{7bd84e39-ca37-46d3-be9d-99ebea85bc0d}</value>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>ProjectExplorer.Project.ActiveTarget</variable>
|
||||||
|
<value type="int">0</value>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>ProjectExplorer.Project.EditorSettings</variable>
|
||||||
|
<valuemap type="QVariantMap">
|
||||||
|
<value type="bool" key="EditorConfiguration.AutoIndent">true</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
|
||||||
|
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
|
||||||
|
<value type="QString" key="language">Cpp</value>
|
||||||
|
<valuemap type="QVariantMap" key="value">
|
||||||
|
<value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
|
||||||
|
</valuemap>
|
||||||
|
</valuemap>
|
||||||
|
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
|
||||||
|
<value type="QString" key="language">QmlJS</value>
|
||||||
|
<valuemap type="QVariantMap" key="value">
|
||||||
|
<value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
|
||||||
|
</valuemap>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
|
||||||
|
<value type="QByteArray" key="EditorConfiguration.Codec">KOI8-R</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
|
||||||
|
<value type="int" key="EditorConfiguration.IndentSize">4</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
|
||||||
|
<value type="int" key="EditorConfiguration.MarginColumn">80</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.MouseHiding">true</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
|
||||||
|
<value type="int" key="EditorConfiguration.PaddingMode">1</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.PreferSingleLineComments">false</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.ShowMargin">false</value>
|
||||||
|
<value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
|
||||||
|
<value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
|
||||||
|
<value type="int" key="EditorConfiguration.TabSize">8</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.UseGlobal">true</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.UseIndenter">false</value>
|
||||||
|
<value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.cleanIndentation">false</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
|
||||||
|
<value type="QString" key="EditorConfiguration.ignoreFileTypes">*.md, *.MD, Makefile</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
|
||||||
|
<value type="bool" key="EditorConfiguration.skipTrailingWhitespace">true</value>
|
||||||
|
</valuemap>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>ProjectExplorer.Project.PluginSettings</variable>
|
||||||
|
<valuemap type="QVariantMap">
|
||||||
|
<valuemap type="QVariantMap" key="AutoTest.ActiveFrameworks">
|
||||||
|
<value type="bool" key="AutoTest.Framework.Boost">true</value>
|
||||||
|
<value type="bool" key="AutoTest.Framework.CTest">false</value>
|
||||||
|
<value type="bool" key="AutoTest.Framework.Catch">true</value>
|
||||||
|
<value type="bool" key="AutoTest.Framework.GTest">true</value>
|
||||||
|
<value type="bool" key="AutoTest.Framework.QtQuickTest">true</value>
|
||||||
|
<value type="bool" key="AutoTest.Framework.QtTest">true</value>
|
||||||
|
</valuemap>
|
||||||
|
<valuemap type="QVariantMap" key="AutoTest.CheckStates"/>
|
||||||
|
<value type="int" key="AutoTest.RunAfterBuild">0</value>
|
||||||
|
<value type="bool" key="AutoTest.UseGlobal">true</value>
|
||||||
|
<valuemap type="QVariantMap" key="ClangTools">
|
||||||
|
<value type="bool" key="ClangTools.AnalyzeOpenFiles">true</value>
|
||||||
|
<value type="bool" key="ClangTools.BuildBeforeAnalysis">true</value>
|
||||||
|
<value type="QString" key="ClangTools.DiagnosticConfig">Builtin.DefaultTidyAndClazy</value>
|
||||||
|
<value type="int" key="ClangTools.ParallelJobs">2</value>
|
||||||
|
<valuelist type="QVariantList" key="ClangTools.SelectedDirs"/>
|
||||||
|
<valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
|
||||||
|
<valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
|
||||||
|
<value type="bool" key="ClangTools.UseGlobalSettings">true</value>
|
||||||
|
</valuemap>
|
||||||
|
</valuemap>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>ProjectExplorer.Project.Target.0</variable>
|
||||||
|
<valuemap type="QVariantMap">
|
||||||
|
<value type="QString" key="DeviceType">Desktop</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{65a14f9e-e008-4c1b-89df-4eaa4774b6e3}</value>
|
||||||
|
<value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
|
||||||
|
<value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
|
||||||
|
<value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
|
||||||
|
<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/Big/Data/00__Electronics/STM32/G0-nolib/rtc</value>
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
|
||||||
|
<valuelist type="QVariantList" key="GenericProjectManager.GenericMakeStep.BuildTargets">
|
||||||
|
<value type="QString">all</value>
|
||||||
|
</valuelist>
|
||||||
|
<value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericMakeStep</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Сборка</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Сборка</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
|
||||||
|
</valuemap>
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
|
||||||
|
<valuelist type="QVariantList" key="GenericProjectManager.GenericMakeStep.BuildTargets">
|
||||||
|
<value type="QString">clean</value>
|
||||||
|
</valuelist>
|
||||||
|
<value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericMakeStep</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Очистка</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Очистка</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
|
||||||
|
<value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
|
||||||
|
<valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
|
||||||
|
<value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
|
||||||
|
<valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">По умолчанию</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericBuildConfiguration</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.Target.BuildConfigurationCount">1</value>
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
|
||||||
|
<value type="int" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Развёртывание</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Развёртывание</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
|
||||||
|
<value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
|
||||||
|
<valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
|
||||||
|
<valuelist type="QVariantList" key="CustomOutputParsers"/>
|
||||||
|
<value type="int" key="PE.EnvironmentAspect.Base">2</value>
|
||||||
|
<valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
|
||||||
|
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
|
||||||
|
<value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
|
||||||
|
<value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
|
||||||
|
<value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
|
||||||
|
<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
|
||||||
|
<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
|
||||||
|
</valuemap>
|
||||||
|
<value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
|
||||||
|
</valuemap>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>ProjectExplorer.Project.TargetCount</variable>
|
||||||
|
<value type="int">1</value>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>ProjectExplorer.Project.Updater.FileVersion</variable>
|
||||||
|
<value type="int">22</value>
|
||||||
|
</data>
|
||||||
|
<data>
|
||||||
|
<variable>Version</variable>
|
||||||
|
<value type="int">22</value>
|
||||||
|
</data>
|
||||||
|
</qtcreator>
|
||||||
1
G0:G070/RTC/rtc.cxxflags
Normal file
1
G0:G070/RTC/rtc.cxxflags
Normal file
@ -0,0 +1 @@
|
|||||||
|
-std=c++17
|
||||||
11
G0:G070/RTC/rtc.files
Normal file
11
G0:G070/RTC/rtc.files
Normal file
@ -0,0 +1,11 @@
|
|||||||
|
main.c
|
||||||
|
rtc.c
|
||||||
|
rtc.h
|
||||||
|
usart.c
|
||||||
|
usart.h
|
||||||
|
strfunc.c
|
||||||
|
strfunc.h
|
||||||
|
proto.c
|
||||||
|
proto.h
|
||||||
|
i2c.c
|
||||||
|
i2c.h
|
||||||
36
G0:G070/RTC/rtc.h
Normal file
36
G0:G070/RTC/rtc.h
Normal file
@ -0,0 +1,36 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
// time, day of week (1 - monday), and date (1 - january)
|
||||||
|
typedef struct{
|
||||||
|
uint8_t second;
|
||||||
|
uint8_t minute;
|
||||||
|
uint8_t hour;
|
||||||
|
uint8_t weekday;
|
||||||
|
uint8_t day;
|
||||||
|
uint8_t month;
|
||||||
|
uint8_t year;
|
||||||
|
} rtc_t;
|
||||||
|
|
||||||
|
void rtc_setup();
|
||||||
|
|
||||||
|
void get_curtime(rtc_t *t);
|
||||||
4
G0:G070/RTC/rtc.includes
Normal file
4
G0:G070/RTC/rtc.includes
Normal file
@ -0,0 +1,4 @@
|
|||||||
|
.
|
||||||
|
../inc
|
||||||
|
../inc/Fx
|
||||||
|
../inc/cm
|
||||||
255
G0:G070/RTC/strfunc.c
Normal file
255
G0:G070/RTC/strfunc.c
Normal file
@ -0,0 +1,255 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stm32g0.h>
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief hexdump - dump hex array by 16 bytes in string
|
||||||
|
* @param sendfun - function to send data
|
||||||
|
* @param arr - array to dump
|
||||||
|
* @param len - length of `arr`
|
||||||
|
*/
|
||||||
|
void hexdump(int (*sendfun)(const char *s), uint8_t *arr, uint16_t len){
|
||||||
|
char buf[52], *bptr = buf;
|
||||||
|
for(uint16_t l = 0; l < len; ++l, ++arr){
|
||||||
|
for(int16_t j = 1; j > -1; --j){
|
||||||
|
register uint8_t half = (*arr >> (4*j)) & 0x0f;
|
||||||
|
if(half < 10) *bptr++ = half + '0';
|
||||||
|
else *bptr++ = half - 10 + 'a';
|
||||||
|
}
|
||||||
|
if(l % 16 == 15){
|
||||||
|
*bptr++ = '\n';
|
||||||
|
*bptr = 0;
|
||||||
|
sendfun(buf);
|
||||||
|
bptr = buf;
|
||||||
|
}else *bptr++ = ' ';
|
||||||
|
}
|
||||||
|
if(bptr != buf){
|
||||||
|
*bptr++ = '\n';
|
||||||
|
*bptr = 0;
|
||||||
|
sendfun(buf);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief _2str - convert value into string buffer
|
||||||
|
* @param val - |value|
|
||||||
|
* @param minus - ==0 if value > 0
|
||||||
|
* @return buffer with number
|
||||||
|
*/
|
||||||
|
static char *_2str(uint32_t val, uint8_t minus){
|
||||||
|
static char strbuf[12];
|
||||||
|
char *bufptr = &strbuf[11];
|
||||||
|
*bufptr = 0;
|
||||||
|
if(!val){
|
||||||
|
*(--bufptr) = '0';
|
||||||
|
}else{
|
||||||
|
while(val){
|
||||||
|
*(--bufptr) = val % 10 + '0';
|
||||||
|
val /= 10;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if(minus) *(--bufptr) = '-';
|
||||||
|
return bufptr;
|
||||||
|
}
|
||||||
|
|
||||||
|
// return string with number `val`
|
||||||
|
char *u2str(uint32_t val){
|
||||||
|
return _2str(val, 0);
|
||||||
|
}
|
||||||
|
char *i2str(int32_t i){
|
||||||
|
uint8_t minus = 0;
|
||||||
|
uint32_t val;
|
||||||
|
if(i < 0){
|
||||||
|
minus = 1;
|
||||||
|
val = -i;
|
||||||
|
}else val = i;
|
||||||
|
return _2str(val, minus);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief uhex2str - print 32bit unsigned int as hex
|
||||||
|
* @param val - value
|
||||||
|
* @return string with number
|
||||||
|
*/
|
||||||
|
char *uhex2str(uint32_t val){
|
||||||
|
static char buf[12] = "0x";
|
||||||
|
int npos = 2;
|
||||||
|
uint8_t *ptr = (uint8_t*)&val + 3;
|
||||||
|
int8_t i, j, z=1;
|
||||||
|
for(i = 0; i < 4; ++i, --ptr){
|
||||||
|
if(*ptr == 0){ // omit leading zeros
|
||||||
|
if(i == 3) z = 0;
|
||||||
|
if(z) continue;
|
||||||
|
}
|
||||||
|
else z = 0;
|
||||||
|
for(j = 1; j > -1; --j){
|
||||||
|
uint8_t half = (*ptr >> (4*j)) & 0x0f;
|
||||||
|
if(half < 10) buf[npos++] = half + '0';
|
||||||
|
else buf[npos++] = half - 10 + 'a';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
buf[npos] = 0;
|
||||||
|
return buf;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief omit_spaces - eliminate leading spaces and other trash in string
|
||||||
|
* @param buf - string
|
||||||
|
* @return - pointer to first character in `buf` > ' '
|
||||||
|
*/
|
||||||
|
char *omit_spaces(const char *buf){
|
||||||
|
while(*buf){
|
||||||
|
if(*buf > ' ') break;
|
||||||
|
++buf;
|
||||||
|
}
|
||||||
|
return (char*)buf;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief getdec - read decimal number & return pointer to next non-number symbol
|
||||||
|
* @param buf - string
|
||||||
|
* @param N - number read
|
||||||
|
* @return Next non-number symbol. In case of overflow return `buf` and N==0xffffffff
|
||||||
|
*/
|
||||||
|
static char *getdec(const char *buf, uint32_t *N){
|
||||||
|
char *start = (char*)buf;
|
||||||
|
uint32_t num = 0;
|
||||||
|
while(*buf){
|
||||||
|
char c = *buf;
|
||||||
|
if(c < '0' || c > '9'){
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if(num > 429496729 || (num == 429496729 && c > '5')){ // overflow
|
||||||
|
*N = 0xffffff;
|
||||||
|
return start;
|
||||||
|
}
|
||||||
|
num *= 10;
|
||||||
|
num += c - '0';
|
||||||
|
++buf;
|
||||||
|
}
|
||||||
|
*N = num;
|
||||||
|
return (char*)buf;
|
||||||
|
}
|
||||||
|
// read hexadecimal number (without 0x prefix!)
|
||||||
|
static char *gethex(const char *buf, uint32_t *N){
|
||||||
|
char *start = (char*)buf;
|
||||||
|
uint32_t num = 0;
|
||||||
|
while(*buf){
|
||||||
|
char c = *buf;
|
||||||
|
uint8_t M = 0;
|
||||||
|
if(c >= '0' && c <= '9'){
|
||||||
|
M = '0';
|
||||||
|
}else if(c >= 'A' && c <= 'F'){
|
||||||
|
M = 'A' - 10;
|
||||||
|
}else if(c >= 'a' && c <= 'f'){
|
||||||
|
M = 'a' - 10;
|
||||||
|
}
|
||||||
|
if(M){
|
||||||
|
if(num & 0xf0000000){ // overflow
|
||||||
|
*N = 0xffffff;
|
||||||
|
return start;
|
||||||
|
}
|
||||||
|
num <<= 4;
|
||||||
|
num += c - M;
|
||||||
|
}else{
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
++buf;
|
||||||
|
}
|
||||||
|
*N = num;
|
||||||
|
return (char*)buf;
|
||||||
|
}
|
||||||
|
// read octal number (without 0 prefix!)
|
||||||
|
static char *getoct(const char *buf, uint32_t *N){
|
||||||
|
char *start = (char*)buf;
|
||||||
|
uint32_t num = 0;
|
||||||
|
while(*buf){
|
||||||
|
char c = *buf;
|
||||||
|
if(c < '0' || c > '7'){
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if(num & 0xe0000000){ // overflow
|
||||||
|
*N = 0xffffff;
|
||||||
|
return start;
|
||||||
|
}
|
||||||
|
num <<= 3;
|
||||||
|
num += c - '0';
|
||||||
|
++buf;
|
||||||
|
}
|
||||||
|
*N = num;
|
||||||
|
return (char*)buf;
|
||||||
|
}
|
||||||
|
// read binary number (without b prefix!)
|
||||||
|
static char *getbin(const char *buf, uint32_t *N){
|
||||||
|
char *start = (char*)buf;
|
||||||
|
uint32_t num = 0;
|
||||||
|
while(*buf){
|
||||||
|
char c = *buf;
|
||||||
|
if(c < '0' || c > '1'){
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if(num & 0x80000000){ // overflow
|
||||||
|
*N = 0xffffff;
|
||||||
|
return start;
|
||||||
|
}
|
||||||
|
num <<= 1;
|
||||||
|
if(c == '1') num |= 1;
|
||||||
|
++buf;
|
||||||
|
}
|
||||||
|
*N = num;
|
||||||
|
return (char*)buf;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief getnum - read uint32_t from string (dec, hex or bin: 127, 0x7f, 0b1111111)
|
||||||
|
* @param buf - buffer with number and so on
|
||||||
|
* @param N - the number read
|
||||||
|
* @return pointer to first non-number symbol in buf
|
||||||
|
* (if it is == buf, there's no number or if *N==0xffffffff there was overflow)
|
||||||
|
*/
|
||||||
|
char *getnum(const char *txt, uint32_t *N){
|
||||||
|
char *nxt = NULL;
|
||||||
|
char *s = omit_spaces(txt);
|
||||||
|
if(*s == '0'){ // hex, oct or 0
|
||||||
|
if(s[1] == 'x' || s[1] == 'X'){ // hex
|
||||||
|
nxt = gethex(s+2, N);
|
||||||
|
if(nxt == s+2) nxt = (char*)txt;
|
||||||
|
}else if(s[1] > '0'-1 && s[1] < '8'){ // oct
|
||||||
|
nxt = getoct(s+1, N);
|
||||||
|
if(nxt == s+1) nxt = (char*)txt;
|
||||||
|
}else{ // 0
|
||||||
|
nxt = s+1;
|
||||||
|
*N = 0;
|
||||||
|
}
|
||||||
|
}else if(*s == 'b' || *s == 'B'){
|
||||||
|
nxt = getbin(s+1, N);
|
||||||
|
if(nxt == s+1) nxt = (char*)txt;
|
||||||
|
}else{
|
||||||
|
nxt = getdec(s, N);
|
||||||
|
if(nxt == s) nxt = (char*)txt;
|
||||||
|
}
|
||||||
|
return nxt;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
void mymemcpy(char *dest, const char *src, int len){
|
||||||
|
if(len < 1) return;
|
||||||
|
while(len--) *dest++ = *src++;
|
||||||
|
}
|
||||||
|
*/
|
||||||
29
G0:G070/RTC/strfunc.h
Normal file
29
G0:G070/RTC/strfunc.h
Normal file
@ -0,0 +1,29 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
void hexdump(int (*sendfun)(const char *s), uint8_t *arr, uint16_t len);
|
||||||
|
char *u2str(uint32_t val);
|
||||||
|
char *i2str(int32_t i);
|
||||||
|
char *uhex2str(uint32_t val);
|
||||||
|
char *getnum(const char *txt, uint32_t *N);
|
||||||
|
char *omit_spaces(const char *buf);
|
||||||
|
//void mymemcpy(char *dest, const char *src, int len);
|
||||||
177
G0:G070/RTC/usart.c
Normal file
177
G0:G070/RTC/usart.c
Normal file
@ -0,0 +1,177 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stm32g0.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "usart.h"
|
||||||
|
|
||||||
|
// RX/TX DMA->CCR without EN flag
|
||||||
|
#define DMARXCCR (DMA_CCR_MINC | DMA_CCR_TCIE | DMA_CCR_TEIE)
|
||||||
|
#define DMATXCCR (DMA_CCR_MINC | DMA_CCR_DIR | DMA_CCR_TCIE | DMA_CCR_TEIE)
|
||||||
|
|
||||||
|
volatile int u3txrdy = 1, u3rxrdy = 0; // transmission done, next line received
|
||||||
|
static volatile int bufovr = 0, wasbufovr = 0; // Rx buffer overflow or error flag -> delete next line
|
||||||
|
static volatile int rbufno = 0, tbufno = 0; // current buf number
|
||||||
|
static volatile char rbuf[2][UARTBUFSZ], tbuf[2][UARTBUFSZ]; // receive & transmit buffers
|
||||||
|
static volatile int rxlen[2] = {0}, txlen[2] = {0};
|
||||||
|
|
||||||
|
char *usart3_getline(int *wasbo){
|
||||||
|
if(wasbo) *wasbo = wasbufovr;
|
||||||
|
wasbufovr = 0;
|
||||||
|
if(!u3rxrdy) return NULL;
|
||||||
|
u3rxrdy = 0; // clear ready flag
|
||||||
|
return (char*)rbuf[!rbufno]; // current buffer is in filling stage, return old - filled - buffer
|
||||||
|
}
|
||||||
|
|
||||||
|
#define USART_BRR(speed) ((64000000 + speed/2) / speed)
|
||||||
|
|
||||||
|
// USART3 @ PD8 (Tx) and PD9 (Rx) - both AF0
|
||||||
|
void usart3_setup(){
|
||||||
|
RCC->IOPENR |= RCC_IOPENR_GPIODEN; // enable PD
|
||||||
|
RCC->AHBENR |= RCC_AHBENR_DMA1EN; // enable DMA1
|
||||||
|
// set PD8 and PD9 as AF
|
||||||
|
GPIOD->MODER = (GPIOD->MODER & ~(GPIO_MODER_MODE8 | GPIO_MODER_MODE9))
|
||||||
|
| GPIO_MODER_MODER8_AF | GPIO_MODER_MODER9_AF;
|
||||||
|
// AF0 for USART3 @ PD8/PD9
|
||||||
|
GPIOD->AFR[1] = GPIOD->AFR[1] & ~(GPIO_AFRH_AFSEL8 | GPIO_AFRH_AFSEL9);
|
||||||
|
// enable USART3 clocking
|
||||||
|
RCC->APBENR1 |= RCC_APBENR1_USART3EN;
|
||||||
|
// baudrate 115200
|
||||||
|
USART3->BRR = USART_BRR(115200);
|
||||||
|
// eol character: '/n'
|
||||||
|
USART3->CR2 = USART_CR2_ADD_VAL('\n');
|
||||||
|
// enable DMA transmission
|
||||||
|
USART3->CR3 = USART_CR3_DMAT | USART_CR3_DMAR;
|
||||||
|
// set up DMA channels: 2 - Tx, 3 - Rx
|
||||||
|
// Tx channel: mem++, mem->periph, 8bit, compl.&err. irq
|
||||||
|
DMA1_Channel2->CCR = DMATXCCR;
|
||||||
|
DMA1_Channel2->CPAR = (uint32_t) &USART3->TDR; // peripherial address
|
||||||
|
// Rx channel: mem++, periph->mem, 8bit, compl.&err. irq
|
||||||
|
DMA1_Channel3->CCR = DMARXCCR;
|
||||||
|
DMA1_Channel3->CPAR = (uint32_t) &USART3->RDR; // peripherial address
|
||||||
|
DMA1_Channel3->CNDTR = UARTBUFSZ;
|
||||||
|
DMA1_Channel3->CMAR = (uint32_t)&rbuf[rbufno];
|
||||||
|
// set up DMAMUX channels: 55 - USART3_TX, 54 - USART3_RX
|
||||||
|
// enumeration of DMAMUX starts from 0 (DMA - from 1)!
|
||||||
|
DMAMUX1_Channel1->CCR = 55;
|
||||||
|
DMAMUX1_Channel2->CCR = 54;
|
||||||
|
// charmatch interrupt, enable transmitter and receiver, enable usart
|
||||||
|
USART3->CR1 = USART_CR1_CMIE | USART_CR1_TE | USART_CR1_RE | USART_CR1_UE;
|
||||||
|
USART3->ICR = 0xffffffff; // clear all flags
|
||||||
|
DMA1_Channel3->CCR = DMARXCCR | DMA_CCR_EN; // start receiving right now
|
||||||
|
NVIC_EnableIRQ(USART3_4_IRQn);
|
||||||
|
NVIC_EnableIRQ(DMA1_Channel2_3_IRQn);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int usart3_sendN(const char *str, int len){
|
||||||
|
int rest = UARTBUFSZ - txlen[tbufno];
|
||||||
|
if(rest == 0 && !u3txrdy) return 0; // buffer is full while transmission in process
|
||||||
|
if(len < rest) rest = len;
|
||||||
|
memcpy((char*)(tbuf[tbufno] + txlen[tbufno]), str, rest);
|
||||||
|
txlen[tbufno] += rest;
|
||||||
|
if(!u3txrdy) return rest;
|
||||||
|
if(txlen[tbufno] == UARTBUFSZ) usart3_sendbuf();
|
||||||
|
if(rest == len) return len;
|
||||||
|
len -= rest;
|
||||||
|
// now fill another - empty - buffer
|
||||||
|
if(len > UARTBUFSZ) len = UARTBUFSZ;
|
||||||
|
memcpy((char*)tbuf[tbufno], str + rest, len);
|
||||||
|
txlen[tbufno] = len;
|
||||||
|
return rest + len;
|
||||||
|
}
|
||||||
|
|
||||||
|
void usart3_send(const char *str, int len){
|
||||||
|
while(len){
|
||||||
|
int sent = usart3_sendN(str, len);
|
||||||
|
str += sent;
|
||||||
|
len -= sent;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void usart3_sendstr(const char *str){
|
||||||
|
int l = strlen(str);
|
||||||
|
usart3_send(str, l);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief usart3_sendbuf - send current buffer
|
||||||
|
*/
|
||||||
|
void usart3_sendbuf(){
|
||||||
|
if(!u3txrdy || txlen[tbufno] == 0) return;
|
||||||
|
// set up DMA
|
||||||
|
DMA1_Channel2->CCR = DMATXCCR;
|
||||||
|
DMA1_Channel2->CMAR = (uint32_t)&tbuf[tbufno];
|
||||||
|
DMA1_Channel2->CNDTR = txlen[tbufno];
|
||||||
|
USART3->ICR = USART_ICR_TCCF; // clear TC flag
|
||||||
|
u3txrdy = 0;
|
||||||
|
// activate DMA
|
||||||
|
DMA1_Channel2->CCR = DMATXCCR | DMA_CCR_EN;
|
||||||
|
tbufno = !tbufno; // swap buffers
|
||||||
|
txlen[tbufno] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// return amount of bytes sents
|
||||||
|
int usart3_send_blocking(const char *str, int len){
|
||||||
|
if(!u3txrdy) return 0;
|
||||||
|
USART3->CR1 |= USART_CR1_TE;
|
||||||
|
for(int i = 0; i < len; ++i){
|
||||||
|
while(!(USART3->ISR & USART_ISR_TXE_TXFNF));
|
||||||
|
USART3->TDR = *str++;
|
||||||
|
}
|
||||||
|
return len;
|
||||||
|
}
|
||||||
|
|
||||||
|
// interrupt by '\n'
|
||||||
|
void usart3_4_isr(){
|
||||||
|
if(USART3->ISR & USART_ISR_CMF){ // got '\n' @ USART3
|
||||||
|
DMA1_Channel3->CCR = DMARXCCR;
|
||||||
|
if(!bufovr){ // forget about broken line @ buffer overflow
|
||||||
|
u3rxrdy = 1;
|
||||||
|
int l = UARTBUFSZ - DMA1_Channel3->CNDTR - 1; // strlen
|
||||||
|
rxlen[rbufno] = l;
|
||||||
|
rbuf[rbufno][l] = 0;
|
||||||
|
rbufno = !rbufno;
|
||||||
|
}else{
|
||||||
|
bufovr = 0;
|
||||||
|
wasbufovr = 1;
|
||||||
|
}
|
||||||
|
// reload DMA Rx with next buffer
|
||||||
|
DMA1_Channel3->CMAR = (uint32_t)&rbuf[rbufno];
|
||||||
|
DMA1_Channel3->CNDTR = UARTBUFSZ;
|
||||||
|
DMA1_Channel3->CCR = DMARXCCR | DMA_CCR_EN;
|
||||||
|
}
|
||||||
|
USART3->ICR = 0xffffffff; // clear all flags
|
||||||
|
}
|
||||||
|
|
||||||
|
// ch2 - Tx, ch3 - Rx
|
||||||
|
void dma1_channel2_3_isr(){
|
||||||
|
uint32_t isr = DMA1->ISR;
|
||||||
|
if(isr & (DMA_ISR_TCIF2 | DMA_ISR_TEIF2)){ // transfer complete or error
|
||||||
|
u3txrdy = 1;
|
||||||
|
}
|
||||||
|
if(isr & (DMA_ISR_TCIF3 | DMA_ISR_TEIF3)){ // receive complete or error -> buffer overflow
|
||||||
|
if(rbuf[rbufno][UARTBUFSZ-1] != '\n'){ // last symbol is not a newline
|
||||||
|
bufovr = 1;
|
||||||
|
DMA1_Channel3->CCR = DMARXCCR;
|
||||||
|
DMA1_Channel3->CNDTR = UARTBUFSZ;
|
||||||
|
DMA1_Channel3->CCR = DMARXCCR | DMA_CCR_EN;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
DMA1->IFCR = 0xff0; // clear all flags for 2&3
|
||||||
|
}
|
||||||
32
G0:G070/RTC/usart.h
Normal file
32
G0:G070/RTC/usart.h
Normal file
@ -0,0 +1,32 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the rtc project.
|
||||||
|
* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
|
||||||
|
*
|
||||||
|
* This program is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#define UARTBUFSZ (64)
|
||||||
|
|
||||||
|
#define USND(t) do{usart3_sendstr(t);}while(0)
|
||||||
|
|
||||||
|
extern volatile int u3txrdy, u3rxrdy;
|
||||||
|
|
||||||
|
void usart3_setup();
|
||||||
|
int usart3_send_blocking(const char *str, int len);
|
||||||
|
void usart3_send(const char *str, int len);
|
||||||
|
void usart3_sendbuf();
|
||||||
|
char *usart3_getline(int *wasbo);
|
||||||
|
void usart3_sendstr(const char *str);
|
||||||
Loading…
x
Reference in New Issue
Block a user