The board was working fine but all of the sudden I can't download any code on it from Keil. Whenever I try to download code on the board, I get
"Could not find Cortex-M device in the JTAG chain! Please check the JTAG cable and connection devices"
I tried a couple of different cables but didn't work. What can be causing the problem?
Suddenly I got the same problem with Tiva-C LaunchPad. Is there any answer?