MTK 输出Trace信息到文件中

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#include "FileMgrGProt.h"void mmi_write_buffer_to_file(char *buff, unsigned int buffSize, char *fileName){    S32 ret = 0;    U32 rwLen = 0;    S8 ascii_path[32];    S8 ucs2_path[64];    FS_HANDLE fileHandle;    sprintf(ascii_path, "%c:\\%s", MMI_CARD_DRV, fileName);    mmi_asc_to_ucs2(ucs2_path, ascii_path);       ret = FS_GetAttributes((const WCHAR *)ucs2_path);    if(ret < FS_NO_ERROR)    {        fileHandle = FS_Open((const WCHAR *)ucs2_path, FS_CREATE_ALWAYS|FS_READ_WRITE);    }    else    {        fileHandle = FS_Open((const WCHAR *)ucs2_path, FS_READ_WRITE);    }    kal_prompt_trace(MOD_TST, "mmi_write_buffer_to_file, fileHandle=%d", fileHandle);    ASSERT(fileHandle>=FS_NO_ERROR);     ret = FS_Seek(fileHandle, 0, FS_FILE_END);    ret = FS_Write(fileHandle, buff, buffSize, &rwLen);    FS_Close(fileHandle);     ASSERT(rwLen==buffSize);    ASSERT(ret >= FS_NO_ERROR); }

?在使用的时候先定义一个buffer

例如：

char filebuff[64] = {0}; //大小可以根据需要来定memset(filebuff, 0, 64);sprintf(filebuff, "error code\r\n");mmi_write_buffer_to_file(filebuff, strlen(filebuff), "error.txt");

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这样是输出error code 到文件当中

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memset(filebuff, 0, 64);sprintf(filebuff, "fN=%s\r\n", fileName);mmi_write_buffer_to_file(filebuff, strlen(filebuff), "error.txt");

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这样是输出fileName 到文件当中

memset(filebuff, 0, 64);sprintf(filebuff, "XXXXX.c, line %d\r\n", __LINE__);mmi_write_buffer_to_file(filebuff, strlen(filebuff), "error.txt");

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这样是输出当前文件的行号到文件中

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这样很方便使用，又不用担心catcher引起问题.

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