Dear all,
I am working on MCB1768/keil uVision with my students for 2 years now, and we use ULINK2 to programm the board. Sometimes, a student (accidentally) push the reset button of a board while the programm is loading in the target. After that, it is no more possible to load anything, and the debug is also no more possible. The error message is "Could not stop Cortex-M device, Please check the Jtag cable". I know that the problem is with the board (not the ulink probe or the cable), as the problem is still here when I try to download the code with other probes or cable... even with Ulink-ME. I have tried different solutions found on the net (change clock, JTAG/SW mode...) but nothing seems to work. As I have now 5 boards with such problem, I ask you if you have an idea to make the boards work again... Thank you. Best regards,
For flash Magic, just to be sure, before doing something wrong: - I place a serial cable between my PC and the MCB1768 COM0 - I go in ISP mode with the INT0/reset trick - I load with flash Magic one of my project hex file in the MCB target - I can again use the U-link2 for next code loading in the target. Can you confirm me all of these steps? Thank you. Best regards,
RE: ISP, Yes, that is the correct hookup.