| Georg Winner wrote: |
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I have noticed some differences in the source code between Windows (4.0.0) and Linux (4.0.1) Version.
drs_exam.cpp: In the windows version when setting the trigger there is no part "if (b->GetBoardType() == 8) {...} else {...}" like in Linux version. So under Windows drs_exam does not start readout of DRS 4 Evalutation Board V4, because it does not get the trigger, under linux the board can be read out succesfull. I have found out, that adding the missing part solves the problem for the windows version.
drs.cpp (Windows Version), line 2101, function "int DRSBoard::SetTriggerDelayNs(int delay)":
There is no operation which calculates the variable "fTriggerDelayNs" out of variable "ticks" like in function "int DRSBoard::SetTriggerDelayPercent(int delay)" (Line 2073). So "fTriggerDelayNs" can get diverse values when using one of the Trigger Setting Functions. Was this intended?
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Thanks for reporting the problem in drs_exam.cpp. The windows and linux versions sometimes differ a bit. I'm working right now on a complete new version, wich will bring both together again.
Concerning fTriggerDelayNs and ticks, they are correlated. One tick is a single delay unit in the FPGA. On the newest boards the unit is 4.8ns long. So
ticks = fTriggerDelayNs / 4.8
fTriggerDelayNs = ticks * 4.8
fTriggerDelayNs gets set at the first line of SetTriggerDelayNs:
int DRSBoard::SetTriggerDelayNs(int delay)
/* set trigger delay in nanoseconds */
{
short ticks, reg;
fTriggerDelayNs = delay;
So I cannot see how fTriggerDelayNS should get diverse values?
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