Hello all,
I have a question i just cannot get my head around right now.
I am working with MSP430F5529, which has an USB module onboard. I am working with CCS 6.1 just for the notice.
Now I did simply integrate the USB composite CDC MSC example, which is already using elm-chans FatFs implementation via SPI to SD card.
This all works pretty nice ( after a lot of debugging and coding and sweat and tears :) ).
Now what is not working , but I would really like to have that, is if I build a file on SDcard with my MSP430:
f_mount(0, &fatfs); /* Give a work area to the default drive */
if (f_open(&File, "textertester.txt", FA_WRITE | FA_CREATE_ALWAYS) == FR_OK) { /* Create a file */
unsigned int bw, btw;
f_write(&File, "test\r\n", 11, &bw); /* Write data to the file */
f_close(&File); /* Close the file */
}
so now there is: textertester.txt on the SDcard , I know that for sure, BUT
my windows explorer is not showing that new data, unless I pull out the SDcard and put it in again, or the same with the USB connector.
Now how can I get the windows explorer to "live" refresh the data contect of the connected MSC SDcard? Anyone ever done that? For a running product that would be a huge plus, not having to pull and push the connectors all the time to see the new logged data :)
Now I will share my workaround with you; I did simulate in the code, that the card has been pulled out and after a while been pushed in again, that works, BUT then windows does create a popup with connected removable device each time i create a new file, I can live with that but I would rather prefer another solution.
Dont bother if you never seen the elm chan TI-code, but if you have maybe you can point out somethings I could do more easily.
As always I will keep updates about my successes in here, I try to figure out today how to implement it.
Thanks for helping and reading.
seb
// an removal has been detected
mediaInfo.mediaPresent = kUSBMSC_MEDIA_NOT_PRESENT;
mediaInfo.mediaChanged = 0x01;
uint8_t state;
Scsi_Read_Capacity_10[0].lLba[0] = (uint8_t)(mediaInfo.lastBlockLba >> 24);
Scsi_Read_Capacity_10[0].lLba[1] = (uint8_t)(mediaInfo.lastBlockLba >> 16);
Scsi_Read_Capacity_10[0].lLba[2] = (uint8_t)(mediaInfo.lastBlockLba >> 8);
Scsi_Read_Capacity_10[0].lLba[3] = (uint8_t)(mediaInfo.lastBlockLba);
Scsi_Read_Capacity_10[0].bLength[0] = (uint8_t)(mediaInfo.bytesPerBlock >> 24);
Scsi_Read_Capacity_10[0].bLength[1] = (uint8_t)(mediaInfo.bytesPerBlock >> 16);
Scsi_Read_Capacity_10[0].bLength[2] = (uint8_t)(mediaInfo.bytesPerBlock >> 8);
Scsi_Read_Capacity_10[0].bLength[3] = (uint8_t)(mediaInfo.bytesPerBlock);
MscControl[0].lbaSize = (uint16_t)Scsi_Read_Capacity_10[0].bLength[2] <<
8 | Scsi_Read_Capacity_10[0].bLength[3];
//If the 0 was reported as not removable, then leave mediaPresent/mediaChanged as
//their initialized defaults.
if (USBMSC_config.LUN[0].removable){
//Set Unit Attention flag. This flag is used in Scsi_Request_Sense().
MscState.bUnitAttention = TRUE;
MscState.Scsi_Status = SCSI_FAILED;
state = USBMSC_getState();
if (state == kUSBMSC_readInProgress || state ==
kUSBMSC_writeInProgress){
if (McsCbw.bmCBWFlags == 0x80){ // DIRECTION_IN
usbStallInEndpoint(MSC0_INTFNUM);
} else {
usbStallOutEndpoint(MSC0_INTFNUM);
}
Msc_ResetStateMachine();
Msc_ResetFlags();
Msc_ResetStruct();
MscState.isMSCConfigured = TRUE;
Scsi_Send_CSW(MSC0_INTFNUM);
}
// }
MscControl[0].bMediaPresent = mediaInfo.mediaPresent;
}
MscControl[0].bWriteProtected = mediaInfo.writeProtected;
// mscProcessBuffer(); // Handle READ/WRITE cmds from the host
while(!(P1IN & BIT2)){
__no_operation();
mscProcessBuffer(); // Handle READ/WRITE cmds from the host
}
__no_operation();
while((P1IN & BIT2));
// an insertion has been detected
mediaInfo.mediaPresent = kUSBMSC_MEDIA_PRESENT;
mediaInfo.mediaChanged = 0x01;
Scsi_Read_Capacity_10[0].lLba[0] = (uint8_t)(mediaInfo.lastBlockLba >> 24);
Scsi_Read_Capacity_10[0].lLba[1] = (uint8_t)(mediaInfo.lastBlockLba >> 16);
Scsi_Read_Capacity_10[0].lLba[2] = (uint8_t)(mediaInfo.lastBlockLba >> 8);
Scsi_Read_Capacity_10[0].lLba[3] = (uint8_t)(mediaInfo.lastBlockLba);
Scsi_Read_Capacity_10[0].bLength[0] = (uint8_t)(mediaInfo.bytesPerBlock >> 24);
Scsi_Read_Capacity_10[0].bLength[1] = (uint8_t)(mediaInfo.bytesPerBlock >> 16);
Scsi_Read_Capacity_10[0].bLength[2] = (uint8_t)(mediaInfo.bytesPerBlock >> 8);
Scsi_Read_Capacity_10[0].bLength[3] = (uint8_t)(mediaInfo.bytesPerBlock);
MscControl[0].lbaSize = (uint16_t)Scsi_Read_Capacity_10[0].bLength[2] <<
8 | Scsi_Read_Capacity_10[0].bLength[3];
/// wenn Karte eingesteckt wird einmal hier rein und naschliessend auch ins nächste
MscState.bUnitAttention = TRUE;
MscState.Scsi_Status = SCSI_FAILED;
if (USBMSC_config.LUN[0].removable){
//Or if media still present, but has changed...
//Set Unit Attention flag. This flag is used in Scsi_Request_Sense().
MscState.bUnitAttention = TRUE;
MscState.Scsi_Status = SCSI_FAILED;
state = USBMSC_getState();
if (state == kUSBMSC_readInProgress || state ==
kUSBMSC_writeInProgress){
if (McsCbw.bmCBWFlags == 0x80){ // DIRECTION_IN
usbStallInEndpoint(MSC0_INTFNUM);
} else {
usbStallOutEndpoint(MSC0_INTFNUM);
}
Msc_ResetStateMachine();
Msc_ResetFlags();
Msc_ResetStruct();
MscState.isMSCConfigured = TRUE;
Scsi_Send_CSW(MSC0_INTFNUM);
}
// }
MscControl[0].bMediaPresent = mediaInfo.mediaPresent;
}
MscControl[0].bWriteProtected = mediaInfo.writeProtected;
while(!(P1IN & BIT2)){
__no_operation();
mscProcessBuffer(); // Handle READ/WRITE cmds from the host
}
