diff options
| author | root <root@avtech.domain.avtechpulse.com> | 1999-12-31 19:00:31 -0500 |
|---|---|---|
| committer | root <root@avtech.domain.avtechpulse.com> | 1999-12-31 19:00:31 -0500 |
| commit | dc99289acd9644a365bbe662deaac2fef1b3035f (patch) | |
| tree | a84626cacbd1bf059fb8fb96b847002201a86f79 /device-functions.c | |
| parent | c587cacfa55a7d3c4e24cc398594a4412bb36ee3 (diff) | |
when using attenuators, do not go to very top of raw ampl rangeINSTRUMENT_5_0_2
Diffstat (limited to 'device-functions.c')
| -rw-r--r-- | device-functions.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/device-functions.c b/device-functions.c index 464079c..203af45 100644 --- a/device-functions.c +++ b/device-functions.c @@ -2715,6 +2715,18 @@ int Set_VI_Control(int parameter,int channel,float new_ampl,int *point_found,int } else { use_atten = globals.Flash.attenuators[channel][*atten_range]; } + + // Limit max voltage in attenuator mode to 93% of full maximum, + // to avoid the region in AVPs where PW shifts at high amplitudes + float max1 = fabs(globals.Flash.min_ampl[channel]); + float max2 = fabs(globals.Flash.max_ampl[channel]); + if (max2 > max1) { + max1 = max2; + } + if ((use_ampl * use_atten) > + (globals.Flash.atten_percent_max_ampl[channel] * max1)) { + continue; + } } for (range_i=starting_range; (range_i<max_ranges) && (!*point_found || top_range_only); ++range_i) { /* use non-all-zero ranges */ |