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 2.GQ Geiger Muller Counter
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Dan82

2 Posts
Posted - 02/04/2017 :  05:58:28  Show Profile  Reply with Quote
Hello,

I'm currently working on a software in order to use my GMC-320 with my mac and I found the SourceForge of Phil Gillaspy that include a description of protocol used by this equipment (https://sourceforge.net/p/gqgmc/code/ci/master/tree/.
Extract of associated Word document:

Baud Rate: 57600
Data Bits: 8
Parity: None
Stop Bits: 1
Control: None

List of commands:
<GETSERIAL>>
<GETVER>>
<GETVOLT>>
<GETCPM>>
<GETCPS>>
<GETCFG>>
<ECFG>>
<CFGUPDATE>>
<HEARTBEAT1>>
<HEARTBEAT0>>
<POWEROFF>>
<POWERON>>
<SETDATETIME
<GETDATETIME>>
<REBOOT>>
<FACTORYRESET>>

When I send one of these commands, there's no response.
My equipment revision is Re 4.16; Are these parameters and commands still valid for this revision?

Thank's
Dan
Reply #1

ZLM

1261 Posts
Posted - 02/04/2017 :  23:25:47  Show Profile  Reply with Quote
The GMC-320 used 115200 baud rate.
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Reply #2

Dan82

2 Posts
Posted - 02/12/2017 :  04:46:39  Show Profile  Reply with Quote
Thank's @ZLM, I didn't have the right driver.

About CPS and CPM values, can you confirm the information I found in Phil Gillaspy C++ code about upper two bits in MSB byte that are reserved bits and should not be used?

I also extracted VendorID (0x1a86) and ProductID (0x7523) for my GMC-320; I suppose VendorID is the same for other GQ Geiger counters but can you give me ProductID for GMC-300 and other geiger counters?

Dan
Edited by - Dan82 on 02/12/2017 04:54:28
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Reply #3

ullix

Germany
1171 Posts
Posted - 02/12/2017 :  05:29:11  Show Profile  Reply with Quote
On Linux with GMC-300Re 4.20 it is the same. Output from lsusb command:
quote:
Bus 003 Device 016: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter

This is the info on the USB-Serial adapter, not on the Geiger device!
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