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 10 May 2011, Jianglai Liu, Forum, simple example frontend for V1720
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 10 May 2011, Stefan Ritt, Forum, simple example frontend for V1720
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10 May 2011, Pierre-Andre Amaudruz, Forum, simple example frontend for V1720
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24 May 2011, Jianglai Liu, Forum, simple example frontend for V1720 
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18 May 2011, Jimmy Ngai, Forum, simple example frontend for V1720
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10 Aug 2012, Carl Blaksley, Forum, simple example frontend for V1720
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12 Aug 2012, Jimmy Ngai, Forum, simple example frontend for V1720
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Message ID: 762
Entry time: 24 May 2011
In reply to: 760
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| Author: |
Jianglai Liu |
| Topic: |
Forum |
| Subject: |
simple example frontend for V1720 |
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Thanks all for the kind help. This did point me to the right direction. I was now able to make v1720.c as well as my MIDAS frontend (thanks to
Jimmy's example) talking to V1720, and read out the waveform bank.
However the readout values did not seem quite right. I fed in a PMT-like pulse of about 0.1 V and 50 ns wide, with an external trigger just in time.
However, the readout by both v1720.c stand-alone code, and my midas frontend seemed to be flat noise.
I tried to play with the post trigger value, as well as the DAC setting of V1720. None seemed to help.
BTW I tested my V1720 board functionality by using the CAEN windows software (CAENScope and WaveDump). They worked just fine.
Any suggestions? Attached is my modified v1720.c code.
| Pierre-Andre Amaudruz wrote: |
| Jianglai Liu wrote: | Hi,
Who has a good example of a frontend program using CAEN V1718 VME-USB bridge and
V1720 FADC? I am trying to set up the DAQ for such a simple system.
I put together a frontend which talks to the VME. However it gets stuck at
"Calibrating" in initialize_equipment().
I'd appreciate some help!
Thanks,
Jianglai |
Under the drivers/vme you can find code for the v1720.c (VME access) and ov1720.c
(A2818/A3818 PCIe optical link access). For testing the hardware, we use this code compiled and linked
with MAIN_ENABLE to confirm its functionality. You may want to do the same for your USB. Once this
is under control, the Midas frontend implementation using the same driver shouldn't give you trouble. |
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