STM32环境下常用函数

common.c

#include "common.h"
#include <stdio.h>
#include <string.h>

void cm_print_buf(const char*hint, const uint8_t *buf, int buflen)
{
    char tmp_buf[DP_TXBUFF_LEN], *p=tmp_buf;

    int len=strnlen(hint, DP_TXBUFF_LEN);
    if(len+buflen*3+1>=DP_TXBUFF_LEN) return;
    strncpy(p, hint, len);
    p+=len;
    for(int i =0;i<buflen;i++) {
        p+=snprintf(p, 4, "%02X ", buf[i]);
    }
    *p = '\n';
    *(p+1) = '\0';
    _dbg_printf("%s",tmp_buf);
}

common.h

#ifndef COMMON_A89HJ_H
#define COMMON_A89HJ_H

#include "dbg_printf.h"
#include "hardware.h"

void cm_print_buf(const char*hint, const uint8_t *buf, int buflen);

#endif