这个是关于LOG分级打印的配置，并有时间戳，基于STM32H7和gcc；
环境
STM32H743IIT6、STM32CubeMX、GCC、MakeFile
printf映射
usart.c中加入以下代码
#include "stdio.h"
/*# 7- Retarget printf to UART (std library and toolchain dependent) #########*/
#if defined(__GNUC__)
int _write(int fd, char *ptr, int len)
{
HAL_UART_Transmit(&huart1, (uint8_t *)ptr, len, HAL_MAX_DELAY);
return len;
}
#elif defined(__ICCARM__)
#include "LowLevelIOInterface.h"
size_t __write(int handle, const unsigned char *buffer, size_t size)
{
HAL_UART_Transmit(&huart1, (uint8_t *)buffer, size, HAL_MAX_DELAY);
return size;
}
#elif defined(__CC_ARM)
int fputc(int ch, FILE *f)
{
HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, HAL_MAX_DELAY);
return ch;
}
#endif
#ifdef __GNUC__
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, HAL_MAX_DELAY);
return ch;
}
MakeFile中删除以下配置：
# LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections
LDFLAGS = $(MCU) -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections
LOG分级打印
新建my_log.h文件，写入以下内容：
#ifndef __MYLOG_H__
#define __MYLOG_H__
#ifdef __cplusplus
extern "C"
{
#endif
#include
#include "main.h"
/* 日志级别 */
#define ELOG_LVL_ASSERT 0
#define ELOG_LVL_ERROR 1
#define ELOG_LVL_WARN 2
#define ELOG_LVL_INFO 3
#define ELOG_LVL_DEBUG 4
#define ELOG_LVL_VERBOSE 5
/* 设置日志级别 */
#define ELOG_OUTPUT_LVL ELOG_LVL_VERBOSE
/*是否打印详细信息*/
#define ELOG_DETAIL 0
#if ELOG_DETAIL == 1
/* 断言(Assert) */
#define LOG_ASSERT(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_ASSERT) \
{ \
printf("[%ld.%03ld][ASSERT/%s Line:%.4d] " args "\r\n", tick_all / 1000, tick_all % 1000, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
/* 错误(Error) */
#define LOG_ERROR(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_ASSERT) \
{ \
printf("[%ld.%03ld][ERROR/%s Line:%.4d] " args "\r\n", tick_all / 1000, tick_all % 1000, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
/* 警告(Warn) */
#define LOG_WARN(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_WARN) \
{ \
printf("[%ld.%03ld][WARN /%s Line:%.4d] " args "\r\n", tick_all / 1000, tick_all % 1000, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
/* 信息(Info) */
#define LOG_INFO(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_INFO) \
{ \
printf("[%ld.%03ld][INFO /%s Line:%.4d] " args "\r\n", tick_all / 1000, tick_all % 1000, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
/* 调试(Debug) */
#define LOG_DEBUG(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_DEBUG) \
{ \
printf("[%ld.%03ld][DEBUG/%s Line:%.4d] " args "\r\n", tick_all / 1000, tick_all % 1000, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
/* 详细(Verbose) */
#define LOG_VERBOSE(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_VERBOSE) \
{ \
printf("[%ld.%03ld][VERBOSE/%s Line:%.4d] " args "\r\n", tick_all / 1000, tick_all % 1000, __FILE__, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
#else
/* 断言(Assert) */
#define LOG_ASSERT(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_ASSERT) \
{ \
printf("[%ld.%03ld][ASSERT] " args "\r\n", tick_all / 1000, tick_all % 1000, ##__VA_ARGS__); \
} \
} while (0)
/* 错误(Error) */
#define LOG_ERROR(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_ASSERT) \
{ \
printf("[%ld.%03ld][ERROR] " args "\r\n", tick_all / 1000, tick_all % 1000, ##__VA_ARGS__); \
} \
} while (0)
/* 警告(Warn) */
#define LOG_WARN(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_WARN) \
{ \
printf("[%ld.%03ld][WARN ] " args "\r\n", tick_all / 1000, tick_all % 1000, ##__VA_ARGS__); \
} \
} while (0)
/* 信息(Info) */
#define LOG_INFO(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_INFO) \
{ \
printf("[%ld.%03ld][INFO ] " args "\r\n", tick_all / 1000, tick_all % 1000, ##__VA_ARGS__); \
} \
} while (0)
/* 调试(Debug) */
#define LOG_DEBUG(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_DEBUG) \
{ \
printf("[%ld.%03ld][DEBUG] " args "\r\n", tick_all / 1000, tick_all % 1000, ##__VA_ARGS__); \
} \
} while (0)
/* 详细(Verbose) */
#define LOG_VERBOSE(args, ...) \
do \
{ \
if (ELOG_OUTPUT_LVL >= ELOG_LVL_VERBOSE) \
{ \
printf("[%ld.%03ld][VERBOSE] " args "\r\n", tick_all / 1000, tick_all % 1000, ##__VA_ARGS__); \
} \
} while (0)
#endif // !ELOG_DETAIL
#ifdef __cplusplus
}
#endif
#endif /* __MYLOG_H__ */
stm32h7xx_it.c中添加以下内容：
uint32_t tick_all = 0;
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_IRQn 0 */
tick_all++;
/* USER CODE END SysTick_IRQn 0 */
HAL_IncTick();
/* USER CODE BEGIN SysTick_IRQn 1 */
/* USER CODE END SysTick_IRQn 1 */
}
main.h中添加以下内容：
/* USER CODE BEGIN ET */
extern uint32_t tick_all;
/* USER CODE END ET */
测试
main.c中添加以下代码：
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
HAL_GPIO_TogglePin(USER_LED_GPIO_Port, USER_LED_Pin);
HAL_Delay(200);
LOG_DEBUG("LOG_DEBUG");
LOG_INFO("LOG_INFO");
LOG_WARN("LOG_INFO");
LOG_ERROR("LOG_ERROR");
}
结果：
增加VOFA支持
增加宏定义如下：
/* VOFA */
#define LOG_VOFA(channel, args) \
do \
{ \
switch (sizeof(args) / sizeof(args[0])) \
{ \
case 1: \
printf("[VOFA] %s:%f\n\r", tick_all / 1000, tick_all % 1000, channel, args[0]); \
break; \
case 2: \
printf("[VOFA] %s:%f,%f\n\r", tick_all / 1000, tick_all % 1000, channel, args[0], args[1]); \
break; \
case 3: \
printf("[VOFA] %s:%f,%f,%f\n\r", tick_all / 1000, tick_all % 1000, channel, args[0], args[1], args[2]); \
break; \
case 4: \
printf("[VOFA] %s:%f,%f,%f,%f\n\r", tick_all / 1000, tick_all % 1000, channel, args[0], args[1], args[2], args[3]); \
break; \
default: \
break; \
} \
} while (0)
测试代码：
float t = 0.0;
float ch4[4] = {0.0f};
t = t + 0.01;
ch4[0] = (float)sin(t);
ch4[1] = (float)sin(2 * t);
ch4[2] = (float)sin(3 * t);
ch4[3] = (float)sin(4 * t);
HAL_GPIO_TogglePin(USER_LED_GPIO_Port, USER_LED_Pin);
HAL_Delay(10);
LOG_VOFA("ch4", ch4);