資源簡介
本科畢業設計,基于RFID設計的簽到系統,其中包括了簽到系統設計和充值消費,通過RC522模塊和stm32實現。通過按鍵選擇對應的模式,屏幕會實時顯示卡片的金額或者姓名學號等。

代碼片段和文件信息
/*------------------------------------------------------------/
/?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
-----------?---------??----------?-----??----
?????文件?????109142??2014-07-17?21:52??RFID簽到系統\CORE\core_cm4.h
?????文件??????22735??2014-07-17?21:52??RFID簽到系統\CORE\core_cm4_simd.h
?????文件??????17146??2014-07-17?21:52??RFID簽到系統\CORE\core_cmFunc.h
?????文件??????20513??2014-07-17?21:52??RFID簽到系統\CORE\core_cmInstr.h
?????文件??????29605??2014-08-02?00:12??RFID簽到系統\CORE\startup_stm32f40_41xxx.s
?????文件???????3248??2014-01-15?00:31??RFID簽到系統\FATFS\doc\css_e.css
?????文件???????3661??2014-01-15?00:31??RFID簽到系統\FATFS\doc\css_j.css
?????文件???????1063??2013-09-18?21:47??RFID簽到系統\FATFS\doc\img\app1.c
?????文件???????1597??2013-10-18?21:41??RFID簽到系統\FATFS\doc\img\app2.c
?????文件???????3811??2014-01-13?20:56??RFID簽到系統\FATFS\doc\img\app3.c
?????文件??????10365??2014-01-07?15:10??RFID簽到系統\FATFS\doc\img\app4.c
?????文件???????1414??2011-09-02?22:10??RFID簽到系統\FATFS\doc\img\f1.png
?????文件???????1458??2007-02-10?03:12??RFID簽到系統\FATFS\doc\img\f2.png
?????文件???????1039??2007-02-10?03:12??RFID簽到系統\FATFS\doc\img\f3.png
?????文件???????2335??2008-01-05?20:27??RFID簽到系統\FATFS\doc\img\f4.png
?????文件???????2479??2008-01-05?20:27??RFID簽到系統\FATFS\doc\img\f5.png
?????文件???????1436??2010-08-21?10:13??RFID簽到系統\FATFS\doc\img\f6.png
?????文件??????11388??2013-05-12?12:31??RFID簽到系統\FATFS\doc\img\f7.png
?????文件??????11421??2014-02-19?22:38??RFID簽到系統\FATFS\doc\img\funcs.png
?????文件???????2401??2009-03-20?21:57??RFID簽到系統\FATFS\doc\img\la
?????文件???????2379??2009-06-13?21:48??RFID簽到系統\FATFS\doc\img\la
?????文件???????7932??2013-12-27?12:20??RFID簽到系統\FATFS\doc\img\modules.png
?????文件??????19068??2008-10-18?19:31??RFID簽到系統\FATFS\doc\img\rwtest.png
?????文件???????8153??2010-09-13?10:55??RFID簽到系統\FATFS\doc\img\rwtest2.png
?????文件???????3011??2009-06-15?00:03??RFID簽到系統\FATFS\doc\img\rwtest3.png
?????文件???????5352??2014-01-15?00:31??RFID簽到系統\FATFS\doc\updates.txt
?????文件???????3685??2014-05-15?17:20??RFID簽到系統\FATFS\exfuns\exfuns.c
?????文件???????1417??2014-05-15?17:20??RFID簽到系統\FATFS\exfuns\exfuns.h
?????文件???????7722??2014-05-15?17:20??RFID簽到系統\FATFS\exfuns\fattester.c
?????文件???????1225??2014-05-15?17:20??RFID簽到系統\FATFS\exfuns\fattester.h
............此處省略266個文件信息
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