On dead side I have blue light but not green light, I have 5V but not 3V.
With this specific ESC I saw on another forum that someone succeeded in connecting working half with dead half with black magic connecting 3V together too (aside IO, GND and CLK). @Trampa is it risky attempting that?
I had to replace STM32F405RGT6 once more because at first I killed the chipset by shorting SWCLK and GROUND while programming chipset because of hazardous temporary cable soldering. Then I secured everything with hotglue.
Finaly I tried to use this repaired ESC but experienced some issues :
Both side of this dual ESC are working BUT :
USB port seems to be dead on master side (where STM got replaced). It doesn’t want to connect. I can connect with METR PRO on UART through TCP and I can also use CAN. USB is OK on slave side.
I can not downgrade firmwares. FW 5.1 (VESC-tool 2.05) is now installed on both sides. I’d like to install ACKMANIAC firmware. I upgrade firmware on both sides. It says they get uploaded, but FW remains the same (5.1). I also tried to upload bootloarders but it was worse because I couldn’t even connect to the ESCs by any way.
Then I had to use STLINK on both sides to reverse this mistake.
Now FW 5.1 works on both sides. I could run detection and the ESC works normally.
But how can I downgrade to ACKMANIAC!? Watt control is god to me.