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xoseperez / sonoffsc

Itead Studio SonoffSC custom firmware with MQTT and Domoticz support
GNU General Public License v3.0
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Problem upload firmware ATMEGA #30

Closed Symbyos83 closed 6 years ago

Symbyos83 commented 6 years ago

Hello, in the meantime I wanted to congratulate you for the excellent development. I wanted to ask you about the firmware upload on the ATMEGA. on the ESP no problem, while when I go to load on ATMEGA with platformio and USBASP (modifying the parameters on the platformio file, I find myself this error "avrdude: verification error, first mismatch at byte 0x0001 avrdude: verification error; content mismatch 0x10 != 0x94 avrdude: safemode: Fuses OK (E:FD, H:DE, L:FF)",

what can it be? I banged my head everywhere now. Thank you Andrea

xoseperez commented 6 years ago

I recall getting this error in the verification phase when avrdude compares contents beyond the image size. Solution in these cases is to force erasing the memory with the -e option. You can also try to use the bootloader in the ATMega and flash it with a USB2UART if you have one.

Symbyos83 commented 6 years ago

@xoseperez Could you explain to me how to use the -e option on platformio? Thank you.

xoseperez commented 6 years ago

You can add this to the platformio env:

upload_flags = -Pusb -e
Symbyos83 commented 6 years ago

so I have to insert that line on the platformio.ini file of the ATMEGA after the following lines   [Platformio] env_default = sonoffsc src_dir = sonoffsc

Sorry but I'm not very practical with Atom and Platformio.

Symbyos83 commented 6 years ago

@xoseperez I managed to flash the ATMEGA. I reconnected the bridges between AMEGA and ESP, connect the USB but I can not find any network Do I have to flash the esp with the -e option?

xoseperez commented 6 years ago

Change the platformio.ini file in the atmega folder to this:

[platformio]
env_default = sonoffsc
src_dir = sonoffsc

[env:sonoffsc]
platform = atmelavr
board = uno
framework = arduino
upload_protocol = usbasp
upload_flags = -Pusb -e
build_flags = -DDHT_TYPE=DHT22
lib_deps =
     Adafruit Unified Sensor
     DHT sensor library@1.3.0
     Adafruit NeoPixel@1.1.2
     https://github.com/kitesurfer1404/WS2812FX#069139b
Symbyos83 commented 6 years ago

yes, the ATMEGA it's ok now.. But i have a problem with ESP. Not show wifi to connect, no blink led... nothing. i have sonoff sc v2.0!!!

Symbyos83 commented 6 years ago

Resolved!!!! put board_flash_mode = dout