Reminder that two weeks ago we swapped out the 16bit DAC card in h1oaf0, but got a dac-zero'ed error on Sunday (9/25). Yesterday (9/27) we swapped the first and third ADCs and are waiting to see if we get another DAC error. On Keith's suggestion we are running a script on h1oaf0 which will report to a log file if the DAC FIFO status is anything other than OK. We suspect that a FIFO full or empty error is precipitating the zeroing of the DAC channels.

The script is called monitor_iop_dac_status.bsh, running in the background on h1oaf0's general core. It appends text to the log file:

/opt/rtcds/lho/h1/target/h1iopoaf0/logs/h1iopoaf0_16bitDAC_fifo_status.txt

It runs every minute, outputting a date stamp and any errors. The DAC FIFO status is gotten from the /proc/h1iopoaf0/status file.