HoshinoSuzumi/IntelliChargingPile
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feat: add USART2 initialization and EXTI15_10 interrupt handler

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This commit is contained in:
Timothy Yin
2025-03-25 14:15:27 +08:00
parent ed81361876
commit c5f3e400ae
14 changed files with 609 additions and 141 deletions
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86
Core/Src/retarget.c
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@ -12,38 +12,38 @@
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
UART_HandleTypeDef *gHuart;
UART_HandleTypeDef* gHuart;
void RetargetInit(UART_HandleTypeDef *huart)
void RetargetInit(UART_HandleTypeDef* huart)
{
gHuart = huart;
/* Disable I/O buffering for STDOUT stream, so that
* chars are sent out as soon as they are printed. */
setvbuf(stdout, NULL, _IONBF, 0);
/* Disable I/O buffering for STDOUT stream, so that
* chars are sent out as soon as they are printed. */
setvbuf(stdout, NULL, _IONBF, 0);
}
int _isatty(int fd)
{
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO)
return 1;
errno = EBADF;
errno = EBADF;
return 0;
}
int _write(int fd, char *ptr, int len)
int _write(int fd, char* ptr, int len)
{
HAL_StatusTypeDef hstatus;
if (fd == STDOUT_FILENO || fd == STDERR_FILENO)
{
hstatus = HAL_UART_Transmit(gHuart, (uint8_t *) ptr, len, HAL_MAX_DELAY);
if (hstatus == HAL_OK)
return len;
else
return EIO;
}
if (fd == STDOUT_FILENO || fd == STDERR_FILENO)
{
hstatus = HAL_UART_Transmit(gHuart, (uint8_t*)ptr, len, HAL_MAX_DELAY);
if (hstatus == HAL_OK)
return len;
else
return EIO;
}
errno = EBADF;
return -1;
}
@ -52,47 +52,47 @@ int _close(int fd)
{
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO)
return 0;
errno = EBADF;
errno = EBADF;
return -1;
}
int _lseek(int fd, int ptr, int dir)
{
(void) fd;
(void) ptr;
(void) dir;
errno = EBADF;
return -1;
}
(void)fd;
(void)ptr;
(void)dir;
int _read(int fd, char *ptr, int len)
{
HAL_StatusTypeDef hstatus;
if (fd == STDIN_FILENO)
{
hstatus = HAL_UART_Receive(gHuart, (uint8_t *) ptr, 1, HAL_MAX_DELAY);
if (hstatus == HAL_OK)
return 1;
else
return EIO;
}
errno = EBADF;
return -1;
}
int _fstat(int fd, struct stat *st)
int _read(int fd, char* ptr, int len)
{
HAL_StatusTypeDef hstatus;
if (fd == STDIN_FILENO)
{
hstatus = HAL_UART_Receive(gHuart, (uint8_t*)ptr, 1, HAL_MAX_DELAY);
if (hstatus == HAL_OK)
return 1;
else
return EIO;
}
errno = EBADF;
return -1;
}
int _fstat(int fd, struct stat* st)
{
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO)
{
st->st_mode = S_IFCHR;
return 0;
}
errno = EBADF;
errno = EBADF;
return 0;
}
#endif //#if !defined(OS_USE_SEMIHOSTING)
#endif //#if !defined(OS_USE_SEMIHOSTING)