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various code improvments: 

1. add lowlevel_init in startup_*.S before call main
2. add debug/stm32-*.cfg

Signed-off-by: surenyi <surenyi82@163.com>
master
surenyi 6 years ago
parent
2f677597cf
commit
a1e6636660
9 changed files with 76 additions and 39 deletions
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  1. 12
      Makefile
  2. 10
      cmsis/src/startup_stm32f40xx.S
  3. 13
      cmsis/src/startup_stm32f429_439xx.S
  4. 6
      gdb/stm32-lock.cfg
  5. 5
      gdb/stm32-unlock.cfg
  6. 22
      lib/a3k.c
  7. 3
      lib/tick.c
  8. 26
      src/main.c
  9. 18
      src/retarget.c

12
Makefile
View File

@ -28,7 +28,8 @@ specs := --specs=nosys.specs --specs=nano.specs
ifeq ($(debug),1)
debug_flags := -O0 -g -ggdb
else
debug_flags := -Os -DNDEBUG
debug_flags := -Os -DNDEBUG -fno-strength-reduce -fomit-frame-pointer
endif
cmsis_startup :=
@ -40,8 +41,8 @@ inc_flags += -I$(cmsis_dir)/inc \
-I$(top_dir)/src
COMM_CFLAGS += -mthumb -fno-common -Wall -ffunction-sections -fdata-sections \
-ffreestanding -fno-builtin -mcpu=cortex-m4
-ffreestanding -fno-builtin -mcpu=cortex-m4 -march=armv7e-m \
-fno-strict-aliasing -Wshadow -pipe
TARGET ?= audio
-include targets.mk
@ -51,6 +52,9 @@ iap_script ?= $(top_dir)/src/iap.ld
FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16 -D__FPU_USED=1 -D__FPU_PRESENT=1
ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
TARGET_CFLAGS += $(FP_FLAGS)
TARGET_CFLAGS += $(COMM_CFLAGS)
TARGET_CFLAGS += -DUSE_STDPERIPH_DRIVER
@ -224,7 +228,7 @@ endif
st-flash: $(BINARY).hex
st-flash --format ihex write $<
dbg: $(BINARY).elf
debug: $(BINARY).elf
$(GDB) $^ -x $(top_dir)/gdb/init.gdb
clean:

10
cmsis/src/startup_stm32f40xx.S
View File

@ -66,6 +66,12 @@ defined in linker script */
* @retval : None
*/
.section .text.lowlevel_init
.weak lowlevel_init
.type lowlevel_init, %function
lowlevel_init:
bx lr
.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
@ -101,6 +107,10 @@ LoopFillZerobss:
/* Call the clock system intitialization function.*/
bl SystemInit
/* preinit before main */
bl lowlevel_init
/* Call the application's entry point.*/
bl main
bx lr

13
cmsis/src/startup_stm32f429_439xx.S
View File

@ -66,6 +66,12 @@ defined in linker script */
* @retval : None
*/
.section .text.lowlevel_init
.weak lowlevel_init
.type lowlevel_init, %function
lowlevel_init:
bx lr
.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
@ -102,7 +108,11 @@ LoopFillZerobss:
/* Call the clock system intitialization function.*/
bl SystemInit
/* Call static constructors */
bl __libc_init_array
bl __libc_init_array
/* preinit before main */
bl lowlevel_init
/* Call the application's entry point.*/
bl main
bx lr
@ -120,6 +130,7 @@ Default_Handler:
Infinite_Loop:
b Infinite_Loop
.size Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex M3. Note that the proper constructs

6
gdb/stm32-lock.cfg
View File

@ -0,0 +1,6 @@
init
reset halt
stm32f2x lock 0
reset halt
exit

5
gdb/stm32-unlock.cfg
View File

@ -0,0 +1,5 @@
init
reset halt
stm32f2x unlock 0
reset halt
exit

22
lib/a3k.c
View File

@ -12,12 +12,12 @@
#define RATE_PINS (6)
struct fifo_tag {
char *pnew; /* points to newest fifo element */
char *pold; /* points to oldest fifo element */
short nelem; // number of bytes currently in fifo
short blen;
char *bend;
char *b;
char *pnew; /* points to newest fifo element */
char *pold; /* points to oldest fifo element */
short nelem;/* number of bytes currently in fifo */
short blen;
char *bend;
char *b;
};
typedef struct fifo_tag FIFO;
@ -34,8 +34,6 @@ struct a3k_tag {
uint32_t ns;
uint32_t es;
uint32_t dropped;
FIFO rx;
uint8_t _buf[FORMAT3KBLEN];
};
@ -728,7 +726,7 @@ int a3k_get_rawpacket(a3k_t tag, uint8_t *buf, int size)
FIFO *f = &tag->rx;
__fifo_getc(f); /* drop 0x61 */
c = __fifo_getc(f); /*len (MSB) */
c = __fifo_getc(f); /* len (MSB) */
len = (c << 8) | (__fifo_getc(f) & 0xff); /* len (LSB) */
__fifo_getc(f); /* drop type */
c = __fifo_getc(f); /* drop CHAND field */
@ -836,10 +834,9 @@ start:
old = f->b;
}
if (parity == 0)
return 1; //we have a full packet with good parity check
return 1; /* we have a full packet with good parity check */
else {
a3k_discardpacket(tag);
++tag->dropped;
return 0;
}
} else
@ -880,8 +877,6 @@ int a3k_setup(a3k_t tag, int baudrate)
pins_set(tag, 0x2c, 0, 1, 0); //ec, ns, es
#endif
ticks_init(1);
if (packet_reset_a3k(tag)) {
printf("reset a3k failed.\r\n");
err = -1;
@ -913,7 +908,6 @@ int a3k_setup(a3k_t tag, int baudrate)
}
tail:
ticks_close();
return err;
}

3
lib/tick.c
View File

@ -5,7 +5,7 @@
static unsigned int __irq_per_ms = TICKS_PER_MS;
volatile uint64_t __current_mills = 0;
volatile uint64_t __current_mills;
static void (*__ticker)(int ms) = 0;
@ -41,6 +41,7 @@ void ticks_init(int ms)
if (ms > 0) {
__irq_per_ms = ms;
}
__current_mills = 0;
/* Set systick reload value to generate 1ms interrupt */
SysTick_Config(__irq_per_ms * SystemCoreClock / 1000);
}

26
src/main.c
View File

@ -19,7 +19,7 @@
#define Y2_OUT (PJ2)
#define Y2_IN (PJ3)
#define PKT_LEN (64)
#define PKT_LEN (48)
#define PKT_NLEMS (128) /* must power of 2 */
#define RS422_PKT_HDR (0x61)
@ -43,10 +43,10 @@
struct tag_fifo {
char *pnew; /* points to newest fifo element */
char *pold; /* points to oldest fifo element */
short nelem; /* number of bytes currently in fifo */
short blen;
char *bend;
char *b;
short nelem;/* number of bytes currently in fifo */
short blen;
char *bend;
char *b;
};
struct ringbuf {
@ -412,16 +412,14 @@ static void __on_20ms(int ms)
static int __on_40ms(struct timer *tm, void *user)
{
to_send = (BIT0 | BIT1);
// gpio_toggle(LED_D6);
#ifdef STM32F40_41xxx
gpio_toggle(PC13);
#endif
return 0;
}
int main()
{
NVIC_SetVectorTable(NVIC_VectTab_FLASH, (APP_ADDRESS - NVIC_VectTab_FLASH));
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
__enable_irq();
/*
* recovery from bad image.
*/
@ -435,7 +433,7 @@ int main()
/* debug console */
serial_setup(&serial0, CONSOLE_BAUDRATE, 8, SERIAL_STOPBITS_1);
printf("build: %s %s\r\n", __DATE__, __TIME__);
printf("build: %s (%s)\r\n", __DATE__, __TIME__);
/* RS422 */
serial_setup(RS422_0, RS422_BAUDRATE, 8, SERIAL_STOPBITS_1);
@ -444,6 +442,10 @@ int main()
/* eeprom */
eeprom_init();
#ifdef STM32F40_41xxx
gpio_init(PC13, GPIO_OUTPUT);
#endif
#ifdef STM32F429_439xx
gpio_init(Y1_OUT, GPIO_OUTPUT);
gpio_init(Y1_IN, GPIO_INPUT);
@ -462,12 +464,14 @@ int main()
init_frames(&tx[1], NULL, 0);
printf("setup vocode 0\r\n");
ticks_init(1);
iwdg_reset();
a3k_setup(&a3k0, -1);
printf("setup vocode 1\r\n");
iwdg_reset();
a3k_setup(&a3k1, -1);
ticks_close();
ticks_set_callback(__on_20ms);
ticks_init(20);

18
src/retarget.c
View File

@ -18,19 +18,21 @@ int console_read(void *ptr, int len)
int console_write(const void *_ptr, int len)
{
#if 0
const uint8_t *ptr = _ptr, *ptr_save = _ptr;
int n;
const uint8_t *ptr = _ptr;
int n = len, x = len;
while (len > 0) {
n = serial_send_buffered(&serial0, ptr, len);
len -= n;
ptr += n;
}
return ptr - ptr_save;
#else
serial_send_blocking(&serial0, _ptr, len);
return (len);
#endif
return (x);
}
void lowlevel_init(void)
{
NVIC_SetVectorTable(NVIC_VectTab_FLASH, (APP_ADDRESS - NVIC_VectTab_FLASH));
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
__enable_irq();
}
static int do_mw(cmd_tbl_t s, int argc, char *argv[])

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