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This commit is contained in:
Edward Emelianov
2023-01-11 21:19:18 +03:00
parent a5e420ac51
commit e98aa11f72
29 changed files with 54 additions and 46 deletions
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7
G0:G070/blink/Makefile
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@@ -54,12 +54,11 @@ CFLAGS += -O2 -MD -D__thumb2__=1
CFLAGS += -Wall -Werror -Wextra -Wshadow -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls $(INCLUDE)
# -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -fno-common -ffunction-sections -fdata-sections
CFLAGS += -fno-common -ffunction-sections -fdata-sections -flto
###############################################################################
# Linker flags
LDFLAGS += --static -nostartfiles
#--specs=nano.specs
LDFLAGS += --static -nostartfiles --specs=nano.specs -flto
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=$(OBJDIR)/$(BINARY).map
@@ -127,7 +126,7 @@ clean:
@rmdir $(OBJDIR) 2>/dev/null || true
size: $(ELF)
$(SIZE) $(ELF)
$(SIZE) -Ax $(ELF)
flash: $(BIN)
@echo " FLASH $(BIN)"

BIN
G0:G070/blink/blink.bin
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4
G0:G070/i2c/Makefile
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@@ -64,11 +64,11 @@ CFLAGS += -O2 -MD -D__thumb2__=1
CFLAGS += -Wall -Werror -Wextra -Wshadow -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls $(INCLUDE)
# -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -fno-common -ffunction-sections -fdata-sections
CFLAGS += -fno-common -ffunction-sections -fdata-sections -flto
###############################################################################
# Linker flags
LDFLAGS += --static -nostartfiles --specs=nano.specs
LDFLAGS += --static -nostartfiles --specs=nano.specs -flto
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=$(OBJDIR)/$(BINARY).map

5
G0:G070/i2c/i2c.c
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@@ -17,7 +17,8 @@
*/
#include <stm32g0.h>
#include "strfunc.h" // mymemcpy
#include <string.h>
#include "strfunc.h" // hexdump
#include "usart.h"
#include "i2c.h"
@@ -166,7 +167,7 @@ uint8_t write_i2c(uint8_t addr, uint8_t *data, uint8_t nbytes){
uint8_t write_i2c_dma(uint8_t addr, uint8_t *data, uint8_t nbytes){
if(!data || nbytes < 1) return 0;
mymemcpy((char*)I2Cbuf, (char*)data, nbytes);
memcpy((char*)I2Cbuf, (char*)data, nbytes);
if(isI2Cbusy()) return 0;
i2cDMAsetup(1, nbytes);
goterr = 0;

BIN
G0:G070/i2c/i2cscan.bin
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8
G0:G070/i2c/proto.c
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@@ -17,6 +17,7 @@
*/
#include <stm32g0.h>
#include <string.h>
#include "i2c.h"
#include "strfunc.h"
#include "usart.h"
@@ -24,6 +25,7 @@
#define LOCBUFFSZ (32)
// local buffer for I2C data to send
static uint8_t locBuffer[LOCBUFFSZ];
extern volatile uint32_t Tms;
const char *helpstring =
"i0..2 - setup I2C with lowest..highest speed (7.7, 10 and 100kHz)\n"
@@ -36,6 +38,7 @@ const char *helpstring =
"In n - just read n bytes\n"
"IN n - the same but with DMA\n"
"Is - scan I2C bus\n"
"T - print current Tms\n"
"U - send long buffer over USART\n"
;
@@ -167,6 +170,11 @@ char *parse_cmd(char *buf){
// "short" commands
if(buf[1]) return buf; // echo wrong data
switch(*buf){
case 'T':
usart3_sendstr("T=");
usart3_sendstr(u2str(Tms));
usart3_send("\n", 1);
break;
case 'U':
U3sendlong(longbuff);
break;

2
G0:G070/i2c/strfunc.c
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@@ -247,7 +247,9 @@ char *getnum(const char *txt, uint32_t *N){
return nxt;
}
/*
void mymemcpy(char *dest, const char *src, int len){
if(len < 1) return;
while(len--) *dest++ = *src++;
}
*/

5
G0:G070/i2c/usart.c
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@@ -19,7 +19,6 @@
#include <stm32g0.h>
#include <string.h>
#include "strfunc.h" // mymemcpy
#include "usart.h"
// RX/TX DMA->CCR without EN flag
@@ -84,7 +83,7 @@ int usart3_send(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;
mymemcpy((char*)(tbuf[tbufno] + txlen[tbufno]), str, rest);
memcpy((char*)(tbuf[tbufno] + txlen[tbufno]), str, rest);
txlen[tbufno] += rest;
if(!u3txrdy) return rest;
if(txlen[tbufno] == UARTBUFSZ) usart3_sendbuf();
@@ -92,7 +91,7 @@ int usart3_send(const char *str, int len){
len -= rest;
// now fill another - empty - buffer
if(len > UARTBUFSZ) len = UARTBUFSZ;
mymemcpy((char*)tbuf[tbufno], str + rest, len);
memcpy((char*)tbuf[tbufno], str + rest, len);
txlen[tbufno] = len;
return rest + len;
}

2
G0:G070/inc/startup/vector.c
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@@ -88,7 +88,7 @@ typedef struct {
extern unsigned _stack;
vector_table_t vector_table __attribute__ ((section(".vector_table"))) = {
vector_table_t vector_table __attribute__ ((used, section(".vector_table"))) = {
.initial_sp_value = &_stack,
.reset = reset_handler,
.nmi = nmi_handler,

7
G0:G070/usart/Makefile
View File

@@ -64,12 +64,11 @@ CFLAGS += -O2 -MD -D__thumb2__=1
CFLAGS += -Wall -Werror -Wextra -Wshadow -Wimplicit-function-declaration
CFLAGS += -Wredundant-decls $(INCLUDE)
# -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += -fno-common -ffunction-sections -fdata-sections
CFLAGS += -fno-common -ffunction-sections -fdata-sections -flto
###############################################################################
# Linker flags
LDFLAGS += --static -nostartfiles
#--specs=nano.specs
LDFLAGS += --static -nostartfiles --specs=nano.specs -flto
LDFLAGS += -L$(LIB_DIR)
LDFLAGS += -T$(LDSCRIPT)
LDFLAGS += -Wl,-Map=$(OBJDIR)/$(BINARY).map
@@ -146,7 +145,7 @@ clean:
@rmdir $(OBJDIR) 2>/dev/null || true
size: $(ELF)
$(SIZE) $(ELF)
$(SIZE) -Ax $(ELF)
flash: $(BIN)
@echo " FLASH $(BIN)"

BIN
G0:G070/usart/usart.bin
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16
G0:G070/usart/usart.c
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@@ -25,18 +25,18 @@
#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)
static int txrdy = 1, rxrdy = 0; // transmission done, next line received
static int bufovr = 0, wasbufovr = 0; // Rx buffer overflow or error flag -> delete next line
static int rbufno = 0, tbufno = 0; // current buf number
static char rbuf[2][UARTBUFSZ], tbuf[2][UARTBUFSZ]; // receive & transmit buffers
static int rxlen[2] = {0}, txlen[2] = {0};
static volatile int txrdy = 1, rxrdy = 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(!rxrdy) return NULL;
rxrdy = 0; // clear ready flag
return rbuf[!rbufno]; // current buffer is in filling stage, return old - filled - buffer
return (char*)rbuf[!rbufno]; // current buffer is in filling stage, return old - filled - buffer
}
#define USART_BRR(speed) ((64000000 + speed/2) / speed)
@@ -87,7 +87,7 @@ int usart3_send(const char *str, int len){
int rest = UARTBUFSZ - txlen[tbufno];
if(rest == 0 && !txrdy) return 0; // buffer is full while transmission in process
if(len < rest) rest = len;
mymemcpy(tbuf[tbufno] + txlen[tbufno], str, rest);
mymemcpy((char*)(tbuf[tbufno] + txlen[tbufno]), str, rest);
txlen[tbufno] += rest;
if(!txrdy) return rest;
if(txlen[tbufno] == UARTBUFSZ) usart3_sendbuf();
@@ -95,7 +95,7 @@ int usart3_send(const char *str, int len){
len -= rest;
// now fill another - empty - buffer
if(len > UARTBUFSZ) len = UARTBUFSZ;
mymemcpy(tbuf[tbufno], str + rest, len);
mymemcpy((char*)tbuf[tbufno], str + rest, len);
txlen[tbufno] = len;
return rest + len;
}