Wei Lin: You are absolutely right about the DAQCard 6024E. It has no DMA available since PCMCIA doesn't support DMA and has no onboard FIFO. The specs say that board will do 1 kS/s with interrupts, system dependent. This is something that is highly dependent on the system. Many of the newer laptops have built-in wireless LAN cards that might be taking some of the bus bandwidth. Do you have any other PCMICA cards in the laptop? If so, disable/remove them. Unfortunately, the DAQCard 6024E is really only good for static AO or very slow AO. If you need to do AO with a PCMCIA card, the DAQCard 6062E is a much better card because it has an 8192 sample FIFO for doing AO. Sorry for the limitations but that hardware device is just not really designed for doing fast AO.
Good Luck! Sincerely, Brooks B Applications Engineer
