DMA underrun in ni_mio_common

When I issue a command to start analog output DMA, my data is output,
however I receive the error:

ni_mio_common: DMA underrun

what does this mean?


Should I be able to poll the # of bytes output on the DAC using comedi_poll
& comedi_get_buffer_contents?  They return zero for the DAC subdevice.

Alex

Received on 2004-05-12Z03:56:11