I have follow PCIE DMA Access to External Memory reference design,I program sof file to FPGA, and reboot. I can see device through PCIE by "lspci | grep Altera", however, every time I try to transport data from host to DDR, my computer crashed. can anyone tell me what's going on?
--- Quote Start --- I want to know if parameters in EMIF was wrong, will cause computer crash? or just get wrong data when transport to DDR? or lower bandwidth? --- Quote End --- I hope, By this time you might have fixed it. if yes, can you mention what went wrong ?? Its happened previously with ourselves as well. what i did was, instead of doing "start DMA" first time, i will disable one option either read dma or write dma and then i will select start dma then it works fine and displays data transfer time. Later , the code was entirely modified and able to send our algo data into ddr3.