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EN:feat-csj
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EN:feat-hwl
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compare: EN:25cd595d66d2498e9855ffb1d8637fd316502321
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EN:dev
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EN:feat-lineseek
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Core/Inc/syscalls.h
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@ -3,15 +3,11 @@
#include <errno.h> #include <errno.h>
#include <signal.h> #include <signal.h>
#include <stdarg.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <stm32f1xx_hal_uart.h> #include <stm32f1xx_hal_uart.h>
#include <time.h> #include <time.h>
#define HUART1 (&huart1)
#define HUART2 (&huart2)
extern UART_HandleTypeDef huart2; extern UART_HandleTypeDef huart2;
extern int __io_putchar(int ch) __attribute__((weak)); extern int __io_putchar(int ch) __attribute__((weak));
@ -80,23 +76,4 @@ void delay_us(uint16_t us) {
uint32_t delay = (HAL_RCC_GetHCLKFreq() / 4000000 * us); uint32_t delay = (HAL_RCC_GetHCLKFreq() / 4000000 * us);
while (delay--); while (delay--);
} }
/**
* @brief 自定义printf
* @param huart, buf
* @return void
*
* @usage my_printf(HUART1, "USART1_Target:\r\n");
*/
void my_printf(UART_HandleTypeDef *huart, const char *buf, ...) {
const char *p = buf;
char str[255] = {0};
va_list v;
va_start(v, buf);
vsprintf(str, buf, v);
HAL_UART_Transmit(huart, str, strlen(str), 0xff);
va_end(v);
}
#endif #endif