Hi, have already one of your USB-CAN Analyzer if i perform a selftest the device didn’t recieve anything.
Checked recieving also with another device but it’s not working.
What can be wrong? Sending is ok.
Have traced the issue down…
The STm32F103 is not sending anything von CH340 RX / STM32 TX. But soldering is ok and i can check continuity down to CH340 RX.
If i connect CH340 TX with RX its working (selftest). So CH340 is not the issue.
CAN sending is also working TX / RX is doing something between MCP / STM32.
So probably the STM32 failed. Maybe only flash failure or the STM32 TX failed internaly.
Can you provide me the BIN / HEX file so i can reprogram the STM32 and check if its back working.
If not i will try to find a new / unused one (if this is currently possible… i think most STM32F103 on Aliexpress are old used or fake…) and reprogram it.
Would be glad if you can send me the binary to fix my USB-CAN Analyzer…