Hi All, Has anybody tried out memory accesses on pci devices connected to IXP1200EB pci slots? I have interfaced a DAQ on one of the pci slots. VxWorks is able to detect the card and also assign BARs to it. But I dont see any BSPs using which I can easily read from the card. The card is being mapped (memory mapped) at addresses: - bus 0 dev 8 error 0 id 10932A80 size 00001000 addr 02201000 size 00001000 addr 02202000 Does the region in memory (above 1Mb, or 16MB or something like that) have any effect on the way memory read/write is done? What documentation do I refer to in order to find out how to read and write to memory in VxWorks. Regards, Sandeep. Research Assistant, Real-Time Embedded Systems Lab, Arizona State University, Arizona, U.S.A.