int sd::open(){
uint8_t write_ok = 0;
while (write_ok==0) {
// pollen vom USB-Status
if (UB_USB_MSC_HOST_Do() == USB_MSC_DEV_CONNECTED) {
// Media mounten
if (UB_Fatfs_Mount(USB_0) == FATFS_OK) {
write_ok = 1;
// UB_Fatfs_UnMount(USB_0);
return 0;
}
} else if (UB_USB_MSC_HOST_Do() == USB_MSC_DEV_NOT_SUPPORTED) {
TFT.string(VISITOR_SMALL_1X_FONT, "Unsupported", 0, 0);
return -1;
} else {
// wenn NOCH kein USB-Stick vorhanden/bereit
}
}
return 1;
}
int main(void)
{
FIL myFile; // Filehandler
uint8_t write_ok=0;
SystemInit(); // Quarz Einstellungen aktivieren
// Init der LEDs
UB_Led_Init();
// Init vom USB-OTG-Port als MSC-HOST
// (zum lesen/schreiben auf einen USB-Stick)
UB_USB_MSC_HOST_Init();
while(1)
{
// pollen vom USB-Status
if(UB_USB_MSC_HOST_Do()==USB_MSC_DEV_CONNECTED) {
// wenn USB-Stick erkannt wurde
UB_Led_On(LED_GREEN);
// wenn File noch nicht geschrieben wurde
if(write_ok==0) {
write_ok=1;
UB_Led_On(LED_RED);
// Media mounten
if(UB_Fatfs_Mount(USB_0)==FATFS_OK) {
// File zum schreiben im root neu anlegen
if(UB_Fatfs_OpenFile(&myFile, "USB_File.txt", F_WR_CLEAR)==FATFS_OK) {
// ein paar Textzeilen in das File schreiben
UB_Fatfs_WriteString(&myFile,"Test der WriteString-Funktion");
UB_Fatfs_WriteString(&myFile,"hier Zeile zwei");
UB_Fatfs_WriteString(&myFile,"ENDE");
// File schliessen
UB_Fatfs_CloseFile(&myFile);
}
// Media unmounten
UB_Fatfs_UnMount(USB_0);
}
UB_Led_Off(LED_RED);
}
}
else {
// wenn kein USB-Stick vorhanden
UB_Led_Off(LED_GREEN);
}
}
}
// usuwanie_plikow_i_katalogow
void usuwanie_plikow_i_katalogow()
{
FILINFO fno;
DIR dir;
uint8_t write_ok = 0;
FRESULT res;
char *path="";
char *fn; // This function is assuming non-Unicode cfg.
SystemInit ( );
UB_Led_Init ( );
UB_USB_MSC_HOST_Init ( );
fno.lfname = lfnBuffer;
fno.lfsize = sizeof ( lfnBuffer );
unsigned int counter =0;
while ( counter<5000000 )
{
if ( UB_USB_MSC_HOST_Do ( ) == USB_MSC_DEV_CONNECTED )
{ // Sprawdzenie poprawnsoci po³¹czenia
UB_Led_On ( LED_GREEN );
UB_Led_Off ( LED_RED );
// Je¿eli zapisy s¹ poprawne to:
if ( write_ok == 0 )
{
write_ok = 1; // W trakcie zapisu wieci pomarañczowa dioda.
UB_Led_On ( LED_ORANGE );
if ( UB_Fatfs_Mount ( USB_0 ) == FATFS_OK ) // Montowanie pendraiva
{
res = f_opendir(&dir, path); // Open the directory
if (res == FR_OK)
{
for (;;)
{
res = f_readdir(&dir, &fno); // Read a directory item
if (res != FR_OK || fno.fname[0] == 0)
break; // Break on error or end of dir
#if _USE_LFN
fn = *fno.lfname ? fno.lfname : fno.fname;
#else
fn = fno.fname;
#endif
f_unlink(fn);
} // for
} // if
// Odmontowanie usb po wykonaniu akcji
UB_Fatfs_UnMount ( USB_0 );
} // if
UB_Led_Off ( LED_ORANGE );
} // Kiedy koniec operacji gaszenie ¿ó³tej lampki
// stop
UB_Led_On ( LED_BLUE );
//mozna tu dac jakies opoznienie
counter=5000001;
} // if
else
{ // W razie b³êdów zawiecenie diody czerwone i zgaszenie zielonej
UB_Led_Off ( LED_GREEN );
UB_Led_On ( LED_RED );
//tu trzeba dac jakies opoznienie
counter++;
} // else
} // while
} // main