From 576f40f5aec3d7e48ed949fd24494b6cfb3ec93f Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Tue, 22 Sep 2009 07:53:57 +0000 Subject: Move Dataflash operational checking code out from SCSI.c into the DataflashManager.c in the Device mode Mass Storage demos. --- .../ClassDriver/MassStorage/Lib/DataflashManager.c | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c') diff --git a/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c b/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c index 3858d38732..257f3b6566 100644 --- a/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c +++ b/Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.c @@ -490,3 +490,36 @@ 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; +} -- cgit v1.2.3