forum.pistar.uk

Suggest that you look for any frequency adjustments in the CPS for the 2 radios, for instance with the Tytera radios there is a frequency offset with settings low, medium, high and it's available in each channel definition and appears to default to low. I think this means that the radio will have al...

I have several Pi-Star devices running on RPi Zero Ws with an MMDVM_HS HAT board, the OLED displays are standard 128x64. What I notice is that the larger text, scrolling "MMDVM" and static "DMR", often have various small corruptions with pixels either off when they should be on o...

Thanks. I contacted the supplier. He said that if reflowing doesn't work, he'll exchange it. I've had to google "reflowing" to know what that meant. I initially thought it was soldering with a soldering iron. But when I looked at the PCB, I realised that's not the case. To be honest, I do...

I'm not sure how to do that yet. I'll wait until the local TG is busy. It's 2 am here now, so there's no traffic. Sure, I expect that if you see a few transmissions then you will start to see DMR RF slot queue overflow messages. Coincidentally I have just replaced the TCXO on one of my MMDVM_HS HAT...

Try putting it on a busy TG or reflector and see what happens, the first couple of incoming transmissions appear to be OK but then when the STM32 runs out of buffer RAM you will see overruns if they are going to happen. I'm not sure how to do that yet. I'll wait until the local TG is busy. It's 2 a...

Try putting it on a busy TG or reflector and see what happens, the first couple of incoming transmissions appear to be OK but then when the STM32 runs out of buffer RAM you will see overruns if they are going to happen.

It's on the links if you select the admin tab and log in, then open another tab using the live log link.

If the radio is not being clocked but the STM32 is (8MHz clock) then you get the symptoms you mention. The Pi can see the firmware string but not actually hear or transmit RF.

Check that the radio is identified, you should see a version string in the admin page near the Rx and Tx frequency settings

1.4.3 is now released as well, it tidies up and improves some ring buffer size allocations and fixes some alternate LED settings.

Have a look at the live log and see if there is anything showing up there. If you see any messages about DMR RF queue overruns then it is possible that the ADF7021 is not receiving a clock input from the TCXO and that there is no data flowing between it and the STM32 CPU. The clock driving this goes...