Search found 86 matches

by EA5JAQ
Wed Mar 08, 2023 10:22 am
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: UV380 + DM-1701 Beta 2023 03 08
Replies: 8
Views: 2326

Re: UV380 + DM-1701 Beta 2023 03 08

Just flashed it in my MD-UV390 and everything seems to work just fine. Thank you so much! Hopefully this Beta can become the first Stable release if no bugs are found. That's great news! Can't wait to check it out. I suppose the IDE you're using for this version is SW4STM32 instead of MCUXpresso, ri...
by EA5JAQ
Wed Mar 01, 2023 9:09 am
Forum: Developer discussions
Topic: Linker file
Replies: 11
Views: 2938

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

Can you read / understand / modify the MK22 linker files Hi! Sorry, I haven't checked the forum in a couple days. I wish I could help but I don't know much about linker files, I only changed the ROM start addresses by substracting 0x4000 addresses so the code starts at the beggining of the ROM if I...
by EA5JAQ
Fri Feb 24, 2023 10:17 pm
Forum: Developer discussions
Topic: Porting to the Retevis RT50 (aka TYT MD-680D)
Replies: 38
Views: 8269

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

I don't see any point in buying these radios, they are not cheap, and they don't have a screen or keyboard. RT3S / UV380 is still available at the moment and hopefully will now continue to be available now that TYT is using a Chinese made STM32F4 chip instead of the genuine chip. Probably the Chine...
by EA5JAQ
Fri Feb 24, 2023 10:57 am
Forum: Developer discussions
Topic: Porting to the Retevis RT50 (aka TYT MD-680D)
Replies: 38
Views: 8269

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

But there must be some difference in timing, and not the speed which is causing the problem Yeah, maybe at the start the code is executed quicker and that's why the for loops have to be longer there... I don't know. BTW, I just contacted TYT and this radio is still in production (or they are gonna ...
by EA5JAQ
Thu Feb 23, 2023 11:47 pm
Forum: Developer discussions
Topic: Porting to the Retevis RT50 (aka TYT MD-680D)
Replies: 38
Views: 8269

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

BTW I'm not doing this on the RT50, I'm doing it in the DM1801 using the lastest release and only changing the native SPI0 communication to a bit-bang system. My goal now is getting a version of the firmware for the DM-1801 that works exactly the same as the release, but with SPI0 using bit-bang (an...
by EA5JAQ
Thu Feb 23, 2023 11:47 pm
Forum: Developer discussions
Topic: Porting to the Retevis RT50 (aka TYT MD-680D)
Replies: 38
Views: 8269

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

Basically, I just used the unmodified released code, changed the C6000 SPI U port declarations (as GPIO pins instead of SPI0) and modified spi.c so SPI0 uses a bit-bang system and SPI1 stays unmodified (in the RT50, SPI1 is connected to the same pins as the DM-1801, but SPI0 is connected to random G...
by EA5JAQ
Thu Feb 23, 2023 10:24 pm
Forum: Developer discussions
Topic: Porting to the Retevis RT50 (aka TYT MD-680D)
Replies: 38
Views: 8269

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

So a couple days ago I received the logic analyser and today I've had a chance to try it. Turns out my delays were way too long. I've made improvements but still couldn't make it work, I still need to adjust and test more things. I found out several curious things. First of all, I've had to use much...
by EA5JAQ
Wed Feb 22, 2023 6:19 pm
Forum: Developer discussions
Topic: Source codes
Replies: 3
Views: 2221

Re: Source codes

They get released when the firmware is stable. At the moment the sources for the MD-9600 and MD-UV380 haven't been released. I'm also planning on experimenting with a couple things and creating a custom UI when they get released ;)
by EA5JAQ
Mon Feb 20, 2023 11:33 pm
Forum: TYT MD-UV380/390 / UV380/390 Plus 10W / Retevis RT-3S / Baofeng DM-1701 / DM-1701B / Retevis RT-84
Topic: Experimental support for non-genuine CPU in new radios
Replies: 19
Views: 3893

Re: Experimental support for non-genuine CPU in new radios

I just flashed it in my MD-UV390 with the “old” CPU and it works perfectly here too. I still need to do some more testing but I haven’t found any problems so far.

Great job! And thank you
by EA5JAQ
Sat Feb 18, 2023 10:31 pm
Forum: Developer discussions
Topic: Porting to the Retevis RT50 (aka TYT MD-680D)
Replies: 38
Views: 8269

Re: Porting to the Retevis RT50 (aka TYT MD-680D)

Yeah for little projects like this the cheap one will probably be enough. In this case I'm really lucky because this is the easy part, I've just had to map the pins and get SPI0 bit-banging working. I'm realising now the amount of work it took to make the C6000 work due to the lack of documentation ...