 Sat Oct 22 13:24:20 2022, Phan Van Chuan, Channel Cascading Option in the 2048-bin 
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Dear Stefan,
We are using DRS4 evaluation board version 5.1 and firmware version 30000 (as the picture attached). Now, I am in need one channel with length 2048
bin. However, I can't find the resistors R99, ... ,R106 on the hardware of evaluation board; it seems my DRS4 evaluation board doesn't use 2048 |
 Mon Oct 24 12:50:24 2022, Stefan Ritt, Channel Cascading Option in the 2048-bin
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The board is delivered in one or the other mode and not meant to be changed by the user, since this requires very delicate soldering which is not easy.
If you try anyhow, you loose the quarantee. You can send the board back to the manufacturer for the modification, but this costs quite some moeny.
Best regards, |
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Mon Aug 31 16:44:12 2020, Hans Steiger, Channel Cascading
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Dear All,
I have a board with Channel Cascading Option. I have the problem, that it seems to be impossible to run all 4 Channels simultaneously for digitizing
pulses. I can just run even or odd channels but not even and odd ones? If I run in combined option, My question: If a board comes with this combined option, |
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Mon Aug 31 17:17:30 2020, Stefan Ritt, Channel Cascading
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If you have a board with cascading option, it should show the "combined" option in the 2048-bin option enabled (not grayed), as in the
attached screen shot. If the 2048-bin option is all greyed out, the system does not recognize the cascading option. If your board has a sticker "2048
bin" and you still see the 2048-bin option greyed out, it might mean that a resistor on that board has been forgotten. If you do not see the "2048 |
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Thu Nov 14 11:39:06 2013, Schablo, Cascading of channels
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Hello, I want use cascading of channels for 2048 cell - SetChannelConfig(0,8,4), but i can't understand how . Please, help me. Where i can
dowload 2048_mode.ppt. (I found information about this file in DRS.cpp (3445 line "/ combine |
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Thu Nov 14 12:51:56 2013, Stefan Ritt, Cascading of channels
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Schablo wrote:
Hello, I want use cascading of channels for 2048 cell - SetChannelConfig(0,8,4), but i can't understand how . Please, help me. |
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Thu Nov 21 14:35:57 2013, Schablo, Cascading of channels
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Stefan Ritt wrote:
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Thu Nov 21 14:45:56 2013, Stefan Ritt, Cascading of channels
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Schablo wrote:
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Sat Feb 12 13:06:56 2022, Matias Senger, Cannot trigger on pulses, have to trigger on undershoot
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I am using the DRS4 board trying to measure pulses produced by an LGAD. I have no prior experience with this board, have just installed the `drsosc`
application and am exploring. I am experiencing some strange trigger behavior. Consider the following screenshot:
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Tue Feb 15 12:02:29 2022, Stefan Ritt, Cannot trigger on pulses, have to trigger on undershoot
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The trigger comparator is a ADCMP601 unit which requires a minimum pulse width of 3-4 ns. I see that your pulses are only 1-2 ns wide. You have to make
your pulses wider in order to trigger on them.
Stefan |
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Thu May 29 04:22:43 2014, Toshihiro Nonaka, CalibrationWaveform
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I'm writing the drs_exam.cpp to use multi-boards(v3, firmware:4.0.0), and taking data succeeded. But I have several questions about function written
in DRS.cpp.
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Thu Jun 12 17:16:13 2014, Stefan Ritt, CalibrationWaveform
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Toshihiro Nonaka wrote:
I'm writing the drs_exam.cpp to use multi-boards(v3, firmware:4.0.0), and taking data succeeded. But |
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Wed Aug 1 17:42:32 2012, Mayank S. Rajguru, Calculation of loop filter parameters (R,C1and C1) for 1 GHz
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Hi,
we are planning to use the DRS4 in our board for 1 GHz sampling and digitization.
I have seen in the data sheet that "For the PLL to work, an external loop filter is required. This filter ensures quick locking and stable |
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Mon Aug 6 02:44:00 2012, Stefan Ritt, Calculation of loop filter parameters (R,C1and C1) for 1 GHz
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Mayank S. Rajguru wrote:
Hi, |
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Wed Jul 14 14:55:09 2021, Mehrpad Monajem, C code to read the 4 channel with external trigger
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Hi there,
Recently I bought a 5GSPS evaluation board with 2048 sampling points.
I want to read 4 inputs of the evaluation bord ar 5 GSPS or 2.5GSP and use an external trigger. |
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Mon Aug 9 12:50:31 2021, Stefan Ritt, C code to read the 4 channel with external trigger
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Sorry the late reply, I was on vacation.
Here are some answers:
1. I'm sorry I can't help much here, since I currently don't have a Windows 10 computer here to compile any code. I moved now completely |
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Tue Aug 10 13:57:09 2021, Mehrpad Monajem, C code to read the 4 channel with external trigger
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Thank you for the reply.
In the version that I have, I cannot find drs_exam_2048.cpp file. Could you please send me the link to download the software folder, which contain
this file. |
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Thu Nov 10 04:41:24 2016, Abhishek Rajput, Break Statements in DRS4 Binary to ROOT Macro
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Hello,
I recently modified the binary to ROOT convertor written by Stefan (https://midas.psi.ch/elogs/DRS4+Forum/361) so it can decode data taken
with any channel or set of channels on the DRS4. In the process of testing this modifed version for data taken on all 4 channels, I encountered problems |
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Thu Nov 10 09:56:04 2016, Stefan Ritt, Break Statements in DRS4 Binary to ROOT Macro
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Hi,
fread() returns the number of bytes read and zero (I believe) if there is an end of file. So this break statement is a simple end-of-file test.
There might be other erros such as hard disk failures, but these are extremely rare. |
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Thu Nov 10 19:24:52 2016, Abhishek Rajput, Break Statements in DRS4 Binary to ROOT Macro
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Hello,
I am wondering why the code should be changed to i < sizeof(eh), since doesn't fread(&eh,sizeof(eh),1,f) return 1 in this scenario?
I've confirmed with a cout statement that this is the case, so this break condition will therefore always trigger as sizeof(eh) is 32 bytes. |