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Portisch / RF-Bridge-EFM8BB1

Alternative Firmware for the Sonoff RF Bridge EFM8BB1 chip
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Keep getting "Magic byte is not 0xE9" errors #127

Closed tlc76 closed 5 years ago

tlc76 commented 5 years ago

I flashed Tasmota 6.5.0 on two RF Bridge devices, version R2.

When I get to flashing the Portisch firmware hex file, I always get the "Magic byte is not 0xE9" error.

Please let me know which version of the Portisch firmware is working with Tasmota 6.5.0. Also, please advise if it is necessary to use any mandatory "define" statements in user_config_override.h (or any other compiler-level setting), to allow flashing of Portisch hex file firmware.

I have attached all the files that I have tried so far without success. portisch_hex_files.zip

Notes:

Thank you! Cristian

Portisch commented 5 years ago

You download it wrong. Download the whole repo as zip and extract the hex from the zip.

tlc76 commented 5 years ago

Thanks for the advice. I downloaded the whole repository as .zip archive (RF-Bridge-EFM8BB1-master.zip) and extracted the hex file (path within archive: RF-Bridge-EFM8BB1-master.zip\RF-Bridge-EFM8BB1-master\Keil 8051 v9.53 - Release\RF-Bridge-EFM8BB1.hex), but I ran into the same issue... (in fact I already had the same "exact" file in my archive - called latest.hex - just that I had previously converted LFs to CR/LF to try it out, but initially the file was exactly as the one from the downloaded repository). Here are the files:

I had cut the GPIO4 and GPIO5 lines as advised by @arendst, so I tried powering up the device both via USB and 3.3V/GND pins from the USB/TTL converter --> same error in both attempts.

What can I be doing wrong? I'm thinking maybe the contacts GPIO4-C2D and GPIO5-C2Ck are not good, but I believe the magic byte error is at file level, so the firmware upload routine does not even get to the point where it sends out the hex file to the RF chip. Any advice? Could the issue be caused by any incompatibility between Tasmota 6.5.0 and the Portisch firmware?

Thanks a lot for your support!

ErikAndren commented 5 years ago

When building Tasmota ensure you have this line defined: https://github.com/arendst/Sonoff-Tasmota/blob/6ac1904e2822859f9e8913d21e697156c8f34c41/sonoff/my_user_config.h#L445 Also make sure you are not building the full sonoff and not the basic. Finally ensure after flashing and logging into tasmota using a browser ensure you have configued tasmota to be a sonoff rf bridge.

tlc76 commented 5 years ago

I finally did it... It seems I was selecting the "env_default = sonoff-basic" build in platformio.ini. I switched to "env_default = sonoff" by uncommenting the appropriate line and everything went fine!

I would add a comment in the wiki, but can someone confirm which are the builds that support uploading the Portisch firmware?

Thank you, Cristian

tlc76 commented 5 years ago

When building Tasmota ensure you have this line defined: https://github.com/arendst/Sonoff-Tasmota/blob/6ac1904e2822859f9e8913d21e697156c8f34c41/sonoff/my_user_config.h#L445 Also make sure you are not building the full sonoff and not the basic. Finally ensure after flashing and logging into tasmota using a browser ensure you have configued tasmota to be a sonoff rf bridge.

Thank you for the advice, I realized that quite late, after spending around 3 hours trying different things :)

tlc76 commented 5 years ago

I added a Warning in the Sonoff RF Bridge 433 wiki article, step 6:

Hit Start Upgrade. The flashing should complete within 60 seconds. Device will restart after upgrade completes. ***WARNING: make sure you have previously installed the full Tasmota build on your Sonoff RF Bridge, otherwise the "Magic byte is not 0xE9" error will occur.