I have received a PCB from 2012 with a JM32 controller, and have built a USBDM ARM-SWD, Coldfire V1, HCS Minimal Hardware, using firmware version 4.10.6.
Initial programming was OK (using a PEMicro programmer), Win7 sees it correctly, I can do firmware update, set serial number.
- leds are dark, they never light up, never blink;
- I can not switch on/off/set the target VDD voltage to 3V. It is always switched on (5V);
- I can not change the state of target reset pin - it is always high (5V). For testing I have used USBDM TCL interpreter. BKGD pin state change is OK!;
- I can not connect to any target device, auto target detection does not work.
So it seems it works, but not perfectly. Since the hardware itself is very simple, I assume this can be a firmware problem.
What do you think?
Since I have never used USBDM before, I don't know how it should work normally, but I think at least LEDs should be active.
Please help me to get it work!
Thank you very much in advance!