i assumed the register was a 32bit word but didn't expect you to read x00x back out! that is werid! have you tried the ?wordread and ?wordwrite commands from tcpborphserver?
also try echo -ne to ignore the trailing newline. maybe there is some borph kernel weridness is there anything in dmesg? On Mon, Mar 18, 2013 at 11:21 PM, Ryan Monroe <[email protected]>wrote: > > > root@roach:/proc/618/hw/ioreg# echo 0 > ../ioreg_mode > root@roach:/proc/618/hw/ioreg# echo -e \x00\x00\x00\x00 > acc_always_valid > -bash: echo: write error: Invalid argument > root@roach:/proc/618/hw/ioreg# echo -e \x00\x00\x00\x00 > > acc_always_validczx > -bash: acc_always_validczx: No such file or directory > root@roach:/proc/618/hw/ioreg# cat ../ioreg_mode > 0 > root@roach:/proc/618/hw/ioreg# echo 1 > ../ioreg_mode > root@roach:/proc/618/hw/ioreg# echo -e \x00\x00\x00\x00 > acc_always_valid > root@roach:/proc/618/hw/ioreg# cat acc_always_valid > x00xroot@roach:/proc/618/hw/ioreg# > > > Was that the expected response? "x00x" > > Also, the "Invalid argument" seems to happen on write too, and it's > different from the "file not found" error... > > > > On 03/18/2013 02:12 PM, Adam Barta wrote: > > Hi Ryan, > > > Try echo -e \x00\x00\x00\x00 > register > > > Adam > > > On Mon, Mar 18, 2013 at 9:12 PM, Ryan Monroe <[email protected]>wrote: > >> Hey guys, >> >> I'm trying to read and write to a ROACH1 using the BORPH filesystem. I >> followed the tutorial at >> https://safe.nrao.edu/wiki/pub/CICADA/FlashLights/BorphGettingStart.pdf, >> but got somewhat different results >> >> >> >> root@roach:/boffiles# ./asmls_roach0_2013_Mar_15_1123.bof >> ^Z >> [1]+ Stopped ./asmls_roach0_2013_Mar_15_1123.bof >> root@roach:/boffiles# ps -a >> PID TTY TIME CMD >> 618 pts/0 00:00:00 asmls_roach0_20 >> 619 pts/0 00:00:00 ps >> root@roach:/boffiles# cd /proc/618/hw >> root@roach:/proc/618/hw# echo 0 > ioreg_mode >> root@roach:/proc/618/hw# cd ioreg >> root@roach:/proc/618/hw/ioreg# ls -ltrh >> -r--r--r-- 1 root root 4 Dec 26 21:56 spec_count >> -rw-rw-rw- 1 root root 4 Dec 26 21:56 acc_always_valid >> <<other entries removed for brevity>> >> >> root@roach:/proc/618/hw/ioreg# cat spec_count >> cat: spec_count: Invalid argument >> root@roach:/proc/618/hw/ioreg# cat acc_always_valid >> cat: acc_always_valid: Invalid argument >> root@roach:/proc/618/hw/ioreg# >> >> >> spec_count is a output reg, while acc_always_valid is an input reg. >> >> Anyone know what I'm doing wrong? Thanks! >> >> --Ryan >> >> > > > -- > *Adam Barta* > c: +27 72 105 8611 > e: [email protected] > w: www.ska.ac.za > > > -- *Adam Barta* c: +27 72 105 8611 e: [email protected] w: www.ska.ac.za
