add blink for G070 (NOT TESTED!)

2026-02-28 03:44:30 +03:00 · 2022-12-22 21:14:59 +03:00
parent 59fb731725
commit c152315922
42 changed files with 120939 additions and 0 deletions
--- a/G0:G070/blink/Makefile
+++ b/G0:G070/blink/Makefile
@@ -0,0 +1,137 @@
+BINARY		= blink
+BOOTPORT	?= /dev/ttyUSB0
+BOOTSPEED	?= 115200
+# MCU FAMILY
+FAMILY		= G0
+# MCU code
+MCU			= G070xx
+DEFS		= -DEBUG -g
+# change this linking script depending on particular MCU model,
+# for example, if you have STM32F103VBT6, you should write:
+LDSCRIPT	= stm32g070xb.ld
+
+INDEPENDENT_HEADERS=
+
+FP_FLAGS	?= -msoft-float
+ASM_FLAGS	= -mthumb -mcpu=cortex-m0plus -march=armv6-m -mtune=cortex-m0plus
+ARCH_FLAGS	= $(ASM_FLAGS) $(FP_FLAGS)
+
+###############################################################################
+# Executables
+PREFIX		?= /opt/bin/arm-none-eabi
+
+RM			:= rm -f
+RMDIR		:= rmdir
+CC			:= $(PREFIX)-gcc
+LD			:= $(PREFIX)-gcc
+AR			:= $(PREFIX)-ar
+AS			:= $(PREFIX)-as
+OBJCOPY		:= $(PREFIX)-objcopy
+OBJDUMP		:= $(PREFIX)-objdump
+GDB			:= $(PREFIX)-gdb
+STFLASH		:= $(shell which st-flash)
+STBOOT		:= $(shell which stm32flash)
+
+###############################################################################
+# Source files
+OBJDIR 		= mk
+LDSCRIPT	?= $(BINARY).ld
+SRC			:= $(wildcard *.c)
+OBJS		:= $(addprefix $(OBJDIR)/, $(SRC:%.c=%.o))
+STARTUP		= $(OBJDIR)/startup.o
+OBJS 		+= $(STARTUP)
+DEPS		:= $(OBJS:.o=.d)
+
+INC_DIR ?= ../inc
+
+INCLUDE 	:= -I$(INC_DIR)/Fx -I$(INC_DIR)/cm
+LIB_DIR		:= $(INC_DIR)/ld
+
+###############################################################################
+# C flags
+CFLAGS		+= -O2 -MD -D__thumb2__=1
+CFLAGS		+= -Wall -Werror -Wextra -Wshadow -Wimplicit-function-declaration
+CFLAGS		+= -Wredundant-decls $(INCLUDE)
+# -Wmissing-prototypes -Wstrict-prototypes
+CFLAGS		+= -fno-common -ffunction-sections -fdata-sections
+
+###############################################################################
+# Linker flags
+LDFLAGS		+= --static -nostartfiles
+#--specs=nano.specs
+LDFLAGS		+= -L$(LIB_DIR)
+LDFLAGS		+= -T$(LDSCRIPT)
+LDFLAGS		+= -Wl,-Map=$(OBJDIR)/$(BINARY).map
+LDFLAGS		+= -Wl,--gc-sections
+
+###############################################################################
+# Used libraries
+LDLIBS		+= -Wl,--start-group -lc -lgcc -Wl,--end-group
+LDLIBS		+= $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
+
+DEFS		+= -DSTM32$(FAMILY) -DSTM32$(MCU)
+
+#.SUFFIXES: .elf .bin .hex .srec .list .map .images
+#.SECONDEXPANSION:
+#.SECONDARY:
+
+ELF		:= $(OBJDIR)/$(BINARY).elf
+LIST	:= $(OBJDIR)/$(BINARY).list
+BIN		:= $(BINARY).bin
+HEX		:= $(BINARY).hex
+
+all: bin list
+
+elf: $(ELF)
+bin: $(BIN)
+hex: $(HEX)
+list: $(LIST)
+
+ifneq ($(MAKECMDGOALS),clean)
+-include $(DEPS)
+endif
+
+$(OBJDIR):
+	mkdir $(OBJDIR)
+
+$(STARTUP): $(INC_DIR)/startup/vector.c
+	$(CC) $(CFLAGS) $(DEFS) $(INCLUDE) $(ARCH_FLAGS) -o $@ -c $<
+
+$(OBJDIR)/%.o: %.c
+	@echo "  CC      $<"
+	$(CC) $(CFLAGS) $(DEFS) $(INCLUDE) $(ARCH_FLAGS) -o $@ -c $<
+
+#$(OBJDIR)/%.d: %.c $(OBJDIR)
+#	$(CC) -MM -MG $< | sed -e 's,^\([^:]*\)\.o[ ]*:,$(@D)/\1.o $(@D)/\1.d:,' >$@
+
+$(BIN): $(ELF)
+	@echo "  OBJCOPY $(BIN)"
+	$(OBJCOPY) -Obinary $(ELF) $(BIN)
+
+$(HEX): $(ELF)
+	@echo "  OBJCOPY $(HEX)"
+	$(OBJCOPY) -Oihex $(ELF) $(HEX)
+
+$(LIST): $(ELF)
+	@echo "  OBJDUMP $(LIST)"
+	$(OBJDUMP) -S $(ELF) > $(LIST)
+
+$(ELF): $(OBJDIR) $(OBJS)
+	@echo "  LD      $(ELF)"
+	$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJS) $(LDLIBS) -o $(ELF)
+
+clean:
+	@echo "  CLEAN"
+	$(RM) $(OBJS) $(DEPS) $(ELF) $(HEX) $(LIST) $(OBJDIR)/*.map
+	@rmdir $(OBJDIR) 2>/dev/null || true
+
+
+flash: $(BIN)
+	@echo "  FLASH  $(BIN)"
+	$(STFLASH) write $(BIN) 0x8000000
+
+boot: $(BIN)
+	@echo "  LOAD $(BIN) through bootloader"
+	$(STBOOT) -b$(BOOTSPEED) $(BOOTPORT) -w $(BIN)
+
+.PHONY: clean flash boot
--- a/G0:G070/blink/README
+++ b/G0:G070/blink/README
@@ -0,0 +1,3 @@
+Toggle LED on STM32G070-pill depending on user button:
+- not pressed - 'SOS' in Morze
+- pressed - blink with period of 1 second
--- a/G0:G070/blink/blink.bin
+++ b/G0:G070/blink/blink.bin
--- a/G0:G070/blink/blink.cflags
+++ b/G0:G070/blink/blink.cflags
@@ -0,0 +1 @@
+-std=c17
--- a/G0:G070/blink/blink.config
+++ b/G0:G070/blink/blink.config
@@ -0,0 +1,3 @@
+#define EBUG
+#define STM32G0
+#define STM32G070xx
--- a/G0:G070/blink/blink.creator
+++ b/G0:G070/blink/blink.creator
@@ -0,0 +1 @@
+[General]
--- a/G0:G070/blink/blink.creator.user
+++ b/G0:G070/blink/blink.creator.user
@@ -0,0 +1,171 @@
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--- a/G0:G070/blink/blink.cxxflags
+++ b/G0:G070/blink/blink.cxxflags
@@ -0,0 +1 @@
+-std=c++17
--- a/G0:G070/blink/blink.files
+++ b/G0:G070/blink/blink.files
@@ -0,0 +1 @@
+systick_blink.c
--- a/G0:G070/blink/blink.includes
+++ b/G0:G070/blink/blink.includes
@@ -0,0 +1,4 @@
+.
+../inc
+../inc/Fx
+../inc/cm
--- a/G0:G070/blink/systick_blink.c
+++ b/G0:G070/blink/systick_blink.c
@@ -0,0 +1,77 @@
+/*
+ * systick_blink.c
+ *
+ * Copyright 2017 Edward V. Emelianoff <eddy@sao.ru, 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include "stm32g0.h"
+
+// KEY (intpullup->0) - PC0
+// LED - PC7
+
+static volatile uint32_t blink_ctr = 0;
+
+/* Called when systick fires */
+void sys_tick_handler(void){
+    ++blink_ctr;
+}
+
+/*
+ * Set up timer to fire every x milliseconds
+ */
+static void systick_setup(uint32_t xms){ // xms < 1864!!!
+    static uint32_t curms = 0;
+    if(curms == xms) return;
+    // 9MHz - HCLK/8
+    // this function also clears counter so it starts right away
+    SysTick_Config(9000 * xms); // arg should be < 0xffffff, so ms should be < 1864
+    curms = xms;
+}
+
+
+static void gpio_setup(void){
+    RCC->IOPENR = RCC_IOPENR_GPIOCEN; // enable PC
+    // set PC7 as opendrain output, PC0 is pullup input
+    GPIOC->MODER = GPIO_MODER_MODER7_O;
+    GPIOC->PUPDR = GPIO_PUPDR_PUPD0;
+    GPIOC->OTYPER = GPIO_OTYPER_OT7;
+}
+
+static const uint32_t L[] = {125,100,125,100,125,200, 350,100,350,100,350,200, 125,100,125,100,125, 1000};
+
+int main(void){
+    StartHSE();
+    //StartHSI48();
+    gpio_setup();
+    /* 500ms ticks =>  1000ms period => 1Hz blinks */
+    systick_setup(100);
+    /* Do nothing in main loop */
+    while (1){
+        if(pin_read(GPIOC, 1<<7)){ // key not pressed - 'sos'
+            uint32_t T = blink_ctr % 18;
+            systick_setup(L[T]);
+            if(T & 1) pin_clear(GPIOC, 1<<7);
+            else pin_set(GPIOC, 1<<7);
+        }else{ // key pressed - blink with period of 1s
+            systick_setup(500);
+            if(blink_ctr & 1) pin_clear(GPIOC, 1<<7);
+            else pin_set(GPIOC, 1<<7);
+
+        }
+    }
+}