Bought a genereic Tuya/Smartlife temperature and humidity semsor from here: Aliexpress
It is CBU/BK7231N based with a TuyaMCU handling the sensor and controlling power-on/VDD of CBU. RX1/TX1 are directly connected to TuyaMCU prohibiting BK7231 Easy Flasher from doing it's job.
I lifted pin 5, TX1 from the TuyaMCU and connected to CBU TX1/RX1. Got the following warning in the log WARNING! Non-standard encryption key!
Skipping Key check, and got following log:
Then I tried to program with "OpenBK7231N_Q10_1.18.229.bin but it continously reboots....
From the debug log (TX2)
Any ideas what to do next?
AI: Can you provide a detailed wiring diagram or clear description of how you currently have the TX/RX and other relevant pins connected between the CBU/BK7231N and the TuyaMCU (including any modifications you made)?
Soldered wires to USB-adapter, separate power supply. TuyaMCU communicationg serially to CBU RX1/TX1
AI: Did you perform a full flash erase (chip erase) before flashing the OpenBK7231N firmware, or did you just write the new firmware over the existing contents?
Full flash
Added after 2 [hours] 17 [minutes]:
This is the log from the original fw:
It is CBU/BK7231N based with a TuyaMCU handling the sensor and controlling power-on/VDD of CBU. RX1/TX1 are directly connected to TuyaMCU prohibiting BK7231 Easy Flasher from doing it's job.
I lifted pin 5, TX1 from the TuyaMCU and connected to CBU TX1/RX1. Got the following warning in the log WARNING! Non-standard encryption key!
Skipping Key check, and got following log:
Code: Text
Log in, to see the code
Then I tried to program with "OpenBK7231N_Q10_1.18.229.bin but it continously reboots....
From the debug log (TX2)
Code: Text
Log in, to see the code
Any ideas what to do next?
AI: Can you provide a detailed wiring diagram or clear description of how you currently have the TX/RX and other relevant pins connected between the CBU/BK7231N and the TuyaMCU (including any modifications you made)?
Soldered wires to USB-adapter, separate power supply. TuyaMCU communicationg serially to CBU RX1/TX1
AI: Did you perform a full flash erase (chip erase) before flashing the OpenBK7231N firmware, or did you just write the new firmware over the existing contents?
Full flash
Added after 2 [hours] 17 [minutes]:
This is the log from the original fw:
Code: Text
Log in, to see the code
