Re: [casper] ROACH hangs before Uboot prompt

Hi Jason, thanks for your email. All your help getting our systems up and running is very much appreciated. I have upgraded to the latest version of uBoot as per your suggestion. I also reinstalled the latest filesystem I could find; filesystem_etch_2009_10_28_tgtap.bz Unfortunately, it

Re: [casper] ROACH hangs before Uboot prompt

Hi again Jason, thanks again. Swapping to the FPGA dimm did indeed get me to the uboot prompt (although with the same memory errormessages along the way). However I have not been able to then proceed to boot the kernel, but this may be because I now have no memory available to the FPGA. It

[casper] ROACH hangs before Uboot prompt

Hi all, new week, new problem. I tried to boot my Roach board this morning after not touching it for about 1.5 weeks. This time however it didn't get to the uBoot prompt. It hangs at the memory test. Interestingly there has been no change from before when it did boot. Anyway; this is what is

Re: [casper] ROACH hangs before Uboot prompt

Hi Kjetil. We have occasionally observed a similar problem here. Uboot tries to learn the required memory timing when booting. Sometimes it fails. It seems to be due to aggressive bus timing and poor signal integrity. Switching to registered DIMMs (like the one the FPGA uses) solves that