Re: [casper] Problem writing to DRAM, ROACH 1

@gmail.com] Sent: Tuesday, April 08, 2014 4:04 PM To: Madden, Timothy J. Cc: casper@lists.berkeley.edu Subject: Re: [casper] Problem writing to DRAM, ROACH 1 Hi, I think I ran into similar issues, but I don't remember it being a consistent failure for a given size, just that large transfer

Re: [casper] Problem writing to DRAM, ROACH 1

Hi, I think I ran into similar issues, but I don't remember it being a consistent failure for a given size, just that large transfers were somewhat unreliable. I used code like this: def _load_dram_katcp(self,data,tries=2): while tries > 0: try: self._pause_dra

[casper] Problem writing to DRAM, ROACH 1

I am using a DRAM block on a ROACH 1. I am using python to write data to the dram with corr. I create a binary array of zeros like: fa.lut_binaryIQ = '\x00\x00\x00\x00\x00\x00.' Length of the array is 1048576. If I do roach.write('dram_memory',fa.lut_binaryIQ) It works fine. If I doubl