/*------------------------------------------------------------/
/?Open?or?create?a?file?in?append?mode
/------------------------------------------------------------*/

FRESULT?open_append?（
????FIL*?fp????????????/*?[OUT]?File?object?to?create?*/
????const?char*?path????/*?[IN]??File?name?to?be?opened?*/
）
{
????FRESULT?fr;

????/*?Opens?an?existing?file.?If?not?exist?creates?a?new?file.?*/
????fr?=?f_open（fp?path?FA_WRITE?|?FA_OPEN_ALWAYS）;
????if?（fr?==?FR_OK）?{
????????/*?Seek?to?end?of?the?file?to?append?data?*/
????????fr?=?f_lseek（fp?f_size（fp））;
????????if?（fr?!=?FR_OK）
????????????f_close（fp）;
????}
????return?fr;
}


int?main?（void）
{
????FRESULT?fr;
????FATFS?fs;
????FIL?fil;

????/*?Open?or?create?a?log?file?and?ready?to?append?*/
????f_mount（&fs?““?0）;
????fr?=?open_append（&fil?“logfile.txt“）;
????if?（fr?!=?FR_OK）?return?1;

????/*?Append?a?line?*/
????f_printf（&fil?“%02u/%02u/%u?%2u:%02u\n“?Mday?Mon?Year?Hour?Min）;

????/*?Close?the?file?*/
????f_close（&fil）;

????return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-08?13:40??SDcard（spi）\CORE\
?????文件???????24423??2016-04-15?22:24??SDcard（spi）\CORE\cmsis_armcc.h
?????文件??????114498??2016-04-15?22:24??SDcard（spi）\CORE\core_cm4.h
?????文件????????3620??2016-04-15?22:24??SDcard（spi）\CORE\core_cmFunc.h
?????文件????????3636??2016-04-15?22:24??SDcard（spi）\CORE\core_cmInstr.h
?????文件????????3662??2016-04-15?22:24??SDcard（spi）\CORE\core_cmSimd.h
?????文件???????31694??2016-04-15?22:24??SDcard（spi）\CORE\startup_stm32f429xx.s
?????目錄???????????0??2018-10-08?13:40??SDcard（spi）\FATFS\
?????目錄???????????0??2018-10-10?17:26??SDcard（spi）\FATFS\doc\
?????文件????????3481??2016-04-18?16:54??SDcard（spi）\FATFS\doc\css_e.css
?????文件????????3896??2016-04-18?16:54??SDcard（spi）\FATFS\doc\css_j.css
?????目錄???????????0??2018-10-08?13:40??SDcard（spi）\FATFS\doc\img\
?????文件????????1063??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\app1.c
?????文件????????1609??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\app2.c
?????文件????????4134??2016-06-03?15:59??SDcard（spi）\FATFS\doc\img\app3.c
?????文件???????10371??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\app4.c
?????文件????????1414??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f1.png
?????文件????????1458??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f2.png
?????文件????????1039??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f3.png
?????文件????????2335??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f4.png
?????文件????????2479??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f5.png
?????文件????????1464??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f6.png
?????文件???????11388??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\f7.png
?????文件???????22722??2016-06-03?15:59??SDcard（spi）\FATFS\doc\img\funcs.png
?????文件????????5521??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\layers.png
?????文件????????3843??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\layers1.png
?????文件????????3741??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\layers2.png
?????文件????????2379??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\layers3.png
?????文件??????686662??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\mkfatimg.zip
?????文件????????7932??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\modules.png
?????文件???????19068??2016-04-18?16:54??SDcard（spi）\FATFS\doc\img\rwtest.png
............此處省略363個文件信息