OpenGD77

MacLEOD wrote: ↑

Sat Jan 28, 2023 7:25 am

That is, the firmware will not work with my radio?

Not if the REV is 9

Yes. But it probably shows Rev:9

So its a fake CPU

This is just a test application its not the firmware

I just added some more hard coded delays to make the display data transfer work

Try

downloads/MDUV380/Tests/OpenMDUV380_sho ... rsion2.bin

Ok, I'll waiting for a fixing this problem... Not sure it can be fixed. The CPU may not be compatible with the operating system used by the firmware. Its a totally unmarked CPU that is now in this radio Even if we could get it to work somehow with this CPU. TYT could change to a new CPU next week I...

MacLEOD wrote: ↑

Sat Jan 28, 2023 7:10 am

Does not work.
Colored "snow" on the screen after flashing.

OK. It worked for other people.

Looks like multiple different versions of the new radio

This test firmware should show the CPU device ID and revision and signature https://www.opengd77.com/downloads/MDUV380/Tests/OpenMDUV380_show_CPU_Version.bin The correct values are DEV ID:0x0413 REV:0x1007 SIG:0x0413 The unknown CPU has a revision number of 9, which is not a valid STM CPU revision U...

Just to add to the available data, I received a new Retevis RT3S GPS Serial 2208R03S1100777 with a date label of 08/2022. It was ordered on Amazon and shipped from Retevis Direct. This radio installed the firmware and operates fine. -Rick I suppose anyone buying a RT3S or UV380 from now on, needs t...

You can add a file satellites.txt: Catalogue number,Display name,Rx,Tx,CTCSS,ArmCTCSS 22825U,AO27,436795000,145850000,0,0 43017U,AO91,145960000,435250000,670,0 43137U,AO92,145880000,435350000,670,0 40908U,CAS3H,437200000,144350000,0,0 40931U,IO86,435880000,145880000,885,0 43678U,PO101,145900000,437...

I have a RT3S GPS Version and Serial with 22112xxxxxxxxx Its Seemed to Enter DFU Mode All Good and Allow me to upload the Latest Firmware. Then its Just a Blank Black Screen, no sound or anything and Computer Doesn't See it as any Com Port. All I Can do is revert to Official FW or Enter DFU Only. A...

For anyone watching this thread It appears that the basic initialisation is working OK, e.g. GPIO, however as soon as the RTOS is started the firmware seems to hang. I wonder whether TYT have replaced the MCU in the radio with a cheaper version, possibly with less RAM Someone would need to open thei...