Custom firmware for the FS2011/FS9000/NR-950/YT-203B Geiger counters

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8 months 1 hour ago #6489 by Simomax

Datalogging in Rad Pro is supported through SWD https://en.wikipedia.org/wiki/JTAG#Similar_interface_standards).
 

Is this done via the ST-LINK dongle, and radlog is configured for serial input? If not, how so? Also from what I have briefly read, Arduino can read SWD, so that could take the reading and upload to radmon.org and would also be able to write to an SD card. Am I correct in this assumption?

It's also great you have written or the GD32 MCU. I haven't received mine yet so I don't know what MCU it will have. I'll let you know when it lands.

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7 months 4 weeks ago #6490 by gissio
Yes, it requires an ST-LINK dongle. SWD is a debugging protocol for ARM microcontrollers; right now, data logging is simply accessing the microcontroller's RAM, so no serial port output.

Let us know your impression of Rad Pro 1.2.2!

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7 months 3 weeks ago #6491 by larkar
Openlog (https://www.sparkfun.com/products/13712) for logging serial data is an option, well, when/if serial output is available.

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7 months 3 weeks ago #6492 by Simomax

Openlog (https://www.sparkfun.com/products/13712) for logging serial data is an option, well, when/if serial output is available.

That's a neat little module, larkar. I like the low power consumption. I would think it easy enough to enable cpm UART output on an ST MCU and that could be fed right into that module, or an ESP, or something. The downsides are that I have never programmed an ST MCU (maybe gissio could?) and the other would be attaching wires to the MCU to get the CPM out. The pins on those MCUs are super tiny, and if there are no solder points on the board it is probably not going to be easy.

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7 months 3 weeks ago #6496 by Simomax
Whoo! My FS2011 landed today, and I have the ST-LINK dongle too. This one does have the GD32 MCU, so that's great that gissio has firmware for this MCU as the stock firmware really sucks. Interestingly the tube in mine appears to be a J305, but there are no markings on the tube that I can tell. it seems to be the exact same size and construction as a J305. I'll remove the tube and inspect it further later as it has been soldered in. I will probably have a play with the counter and try updating the firmware this weekend.

 

 
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7 months 3 weeks ago - 7 months 3 weeks ago #6503 by gissio
Nice! Indeed it looks like a J305. By the way, a user posted a similar photo here: https://github.com/Gissio/radpro/issues/2 . He also mentioned that his device has a J3 marking on the glass.

One more thing: before flashing the Rad Pro firmware, could you measure the voltage on the tube, and check it is the same after flashing? I can't test this as I don't have a GD32 device with a J305 tube.

Cheers,

Gissio.
Last edit: 7 months 3 weeks ago by gissio.

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