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f1c200s_library's Issues

Uart里My_Printf死机问题

软件版本

  • 软件已更新到最新版本

您使用的场景?

用的F1C100S芯片,windows平台,vscode

您做了什么操作?

在‘UART_IDLE_task(void * p)’函数内打印串口接收到的内容

static void UART_IDLE_task(void * p)
{
  while(1)
  {
    uart_idle(&uart_Data);

    if(uart_Data.receive_complete_flag == 1)
    {
      uart_Data.receive_complete_flag = 0;

      My_Printf("rxlen=%d,%s",uart_Data.len,uart_Data.RXD_BUF);
    }

    rt_thread_mdelay(1);
  }
}

您遇到了什么问题?

在原有的void My_Printf(char * fmt, ...)函数里使用了'uart_Data.TXD_BUF'作为vsprintf的格式化字符串缓存区,但在实际使用过程中,会造成死机现象。尝试定位问题,最后在函数内部创建一个局部数组作为缓存,就不会死机。我修改后的函数如下:

void My_Printf(char * fmt, ...)
{
  uint32_t i,len;
  va_list p;
  char buf[500];

  rt_enter_critical();
  va_start(p, fmt);
  len = vsnprintf(buf,499,fmt, p);
  va_end(p);

  for(i = 0; i < len; i++)
  {
    UART_SendData(UART1, buf[i]);
    while(UART_Get_Status(UART1, UART_USR_TFNF) != SET);
  }

  rt_exit_critical();
}

您期望的结果是怎样的?

麻烦有时间看下具体原因。

SDMMC驱动不正常,SD_InitializeCards返回超时错误(master)

软件版本

  • 软件已更新到最新版本

您使用的场景?

访问SD卡文件系统

您做了什么操作?

main函数中注释掉大部分任务,只留下UART_task,而SDIO_task设置与启动迁移至UART_task末尾执行,以便在SDIO_task能使用printf打印一些执行情况

您遇到了什么问题?

SD_Init中,执行SD_InitializeCards时返回超时错误
具体为其中的Send CMD9 SEND_CSD部分,发送完命令后,CmdResp2Error等待命令响应超时
(master分支表现如上,LVGL8.3分支也尝试了一下,结果类似,SD_Init返回超时,但暂时没去细测是否表现与master完全一致)

您期望的结果是怎样的?

想正常读写SD卡

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