FPGA Central

Hey guys & gals,

I've been experiencing some difficulty using the opb_hwicap for EDK
9.1. I'm trying to use it for reading/writing BRAM data w/ it's new
32-bit, virtex4 support. Anyway, I cannot seem to be able to get it to
run. I've noticed - first off, that the def "XHI_FAR_BRAM_BLOCK" is set
to 1, which is correct for the V2 but not V4... So i've set the
block_type to 2 for read/write BRAMs. Anyway -- I've been using the
XHwIcap_DeviceReadFrameV4 & XHwIcap_DeviceWriteFrameV4 functions without
success. They do RETURN "XST_SUCCESS", but from what I'm seeing, it's
not correct. For example, if I write something to a location and then
read it, I always get 0's. I'm reading the attached BRAM and see some
starting packet stuff, and then zeros. Has anyone used the new 32-bit
hwicap w/ success for reading/writing BRAMS. If so, sample code perhaps
that I could test please? Oh, fyi - it seems to be able to read config
registers, and the BRAMs I'm reading/writing to are not being accessed
when the ICAP attempts read/write. I appreciate any help.

Kevin