2012-02-04 09:49 AM
usb msc file copy stall
#usb-msc #usb #stm32f2xx #stm32f2xx-us2012-02-14 09:47 AM
Body of my original post didn't make into the discussion board.
Has anybody noticed the following issue:I noticed that copy from the MSC device to PC will stall if:
uint8_t array MSC_BOT_Data[MSC_MEDIA_PACKET]
is allocated at address 0x125A4 or higher.
This array is used as a data buffer for DMA handling transfer.
Workaround: When I allocated MSC_BOT_Data to addresses bellow 0x125A4 (by moving my application code to the bottom group in the Keil project file) the problem goes away.