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USB Error

Question asked by Salman Razzaq on Mar 6, 2015
Latest reply on Mar 12, 2015 by TomE

Hi,

I am running a firmware on MCF52254. Basically, I am collecting data which the microcontroller computes through USB. I am sending the data through bulk endpoint without any problem. I am collecting the data in the micro controller at 5 MHz and sending it through the bulk endpoint to the host. I noticed that sometimes I get an error DMA error (DMA_ERR) and bus turnaround timeout error (BTO_ERR) on usb. When I cleared it, it starts sending the data again.

 

What could be cause of the problem. Is clearing the data fine as I need to send the data in real time to the host.

 

Regards.

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