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tbs-fpv / freedomtx

FreedomTX custom firmware for Transmitters
GNU General Public License v2.0
60 stars 8 forks source link

How to flash? #7

Closed grahamcropley closed 4 years ago

grahamcropley commented 4 years ago

I have forked and compiled, can anybody explain how to flash my build to the Tango2? I want to test before trying to contribute back.

Also, is there a FB Group / Slack / Discord I could join?

alexvanh commented 4 years ago

I asked TBS support about this, the reply was: "this is not possible at this time, it will be added when freedomtx merges back with opentx."

I think the Tango 2 is running a custom TBS bootloader rather than the regular OpenTX bootloader, so the normal ways of updating OpenTX won't work. I couldn't find a way to put the STM32 in DFU mode either.

I've been trying to find a way. I think it might be possible to flash using an stlink, but you will need to generate a firmware.bin with the TBS bootloader and the modified firmware, or only flash the firmware area of flash with the firmware portion of firmware.bin and leave the bootloader area alone.

tobiasbischoff commented 4 years ago

Thats kind of sad. Its technically not a real open source product when you cant compile and flash yourself.

grahamcropley commented 4 years ago

@tobiasbischoff I get your point, but FreedomTX is a fork that TBS have created specifically to add support for this new hardware, I don't believe it's the intention that FreedomTX will live beyond OpenTX 2.4 when these additions are merged back.

@alexvanh I guess they have to run their own bootloader because there's only 1 USB port that now has to have access to flash Crossfire TX module, OpenTX/FreedomTX OS, and be used for SD Mass Storage + Joystick HID + Agent X connectivity. I'd imaging the additional work to open that up to custom build / custom flash process outside of Agent X is more effort than the outstanding bug fixes which they seem to be on top of until it's merged back with OpenTX.

I understand the technical aspects a bit more now, so I will close this. Thanks both for replying!