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Move Dataflash operational checking code out from SCSI.c into the DataflashManager.c in the Device mode Mass Storage demos.

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This commit is contained in:
Dean Camera 2009-09-22 07:53:57 +00:00
parent 242303c160
commit 576f40f5ae
7 changed files with 75 additions and 58 deletions
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33
Demos/Device/LowLevel/MassStorage/Lib/DataflashManager.c
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@ -488,3 +488,36 @@ void DataflashManager_ResetDataflashProtections(void)
/* Deselect current dataflash chip */
Dataflash_DeselectChip();
}
/** Performs a simple test on the attached Dataflash IC(s) to ensure that they are working.
*
* \return Boolean true if all media chips are working, false otherwise
*/
bool DataflashManager_CheckDataflashOperation(void)
{
uint8_t ReturnByte;
/* Test first Dataflash IC is present and responding to commands */
Dataflash_SelectChip(DATAFLASH_CHIP1);
Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO);
ReturnByte = Dataflash_ReceiveByte();
Dataflash_DeselectChip();
/* If returned data is invalid, fail the command */
if (ReturnByte != DF_MANUFACTURER_ATMEL)
return false;
#if (DATAFLASH_TOTALCHIPS == 2)
/* Test second Dataflash IC is present and responding to commands */
Dataflash_SelectChip(DATAFLASH_CHIP2);
Dataflash_SendByte(DF_CMD_READMANUFACTURERDEVICEINFO);
ReturnByte = Dataflash_ReceiveByte();
Dataflash_DeselectChip();
/* If returned data is invalid, fail the command */
if (ReturnByte != DF_MANUFACTURER_ATMEL)
return false;
#endif
return true;
}