please,please help me for endpoint plus IP core DMA of virtex5LX50T
Hello every one,
(1)I try to simplify the debug, I use /MAXMEM switch in boot.ini to reserve 1G memory from windows OS to use it for DMA experiment (write from device). I want to know, my hardware(virtex 5)can operate this reserved memory in DMA way without any driver help in windows or not? Because I want to make sure all the hardware action is right at first step. So I don’t want to code a driver in windows for my card to minimize driver impact for the debug.
(2) After I did first step described above. I found endpoint plus IP core report me trn_tdst_rdy_n signal and it looks like the internal TX buffer of IP core is used up, I also found nothing in computer memory reserved by /MAXMEM switch in boot.ini. this is caused by my first step or by some other reason?
Thanks for the help.