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You can modify this using the DDSA Phstep High register on the tone control expert screen.
![](/download/attachments/410101927/llrf_lemp_test_stand_rf_b15_cm06_cavity_overview.png?version=1&modificationDate=1701473458000&api=v2)
![](/download/attachments/410101927/llrf_lemp_test_stand_rf_b15_cm06_cavity_cal.png?version=2&modificationDate=1701473682000&api=v2)
![](/download/attachments/410101927/llrf_lemp_test_stand_rf_b15_cm06_tone.png?version=1&modificationDate=1701473458000&api=v2)
![](/download/attachments/410101927/llrf_lemp_test_stand_rf_b15_cm06_tone_expert.png?version=1&modificationDate=1701473458000&api=v2)
Acquire one Waveform Acquisition
- Set Waveform Acquisition Mode to Single
- Write a value of '1' to the ACQ_CMD PV. For example
$ caput ACCL:L2B:0610:ACQ_CMD 1
Change RFS Firmware Version
- Change directory to location of bitfiles:
$ cd /afs/slac/g/lcls/tools/FEED/firmware/prc
2. View current version:
$ ls -l current-lemp
lrwxr-xr-x 1 sonya ad 24 Nov 29 14:13 current-lemp -> prc_qf2_v07.ee0ae8cf.bit
3. Rename current version:
$ mv current-lemp current-lemp-yymmdd
Example: $ mv current-lemp current-lemp-231213
4. Copy new version to this directory and make new symbolic link pointing to it:
$ cp <path_to_new_file>/<new_file> .
$ ln s <new_file> current lemp
Example:
From your laptop:
scp prc_qf2_v07.ee0ae8cf.bit <username>@centos7.slac.stanford.edu:.
From afs machine:
$ cp ~/prc_qf2_v07.ee0ae8cf.bit .
$ ln -s prc_qf2_v07.ee0ae8cf.bit current lemp