Other Parts Discussed in Thread: UNIFLASH
Tool/software:
We encountered a problem while using TI's 2800137. Can you help coordinate and solve it? Question:
1. A small batch of boards (20PCS) have no problems;
2. There is a board that has been running for a period of time and cannot be restarted;
3. The test is that the chip is constantly resetting (IO pins are periodically reset);
4. When the chip is removed to another board, the other board repeatedly resets and follows the chip;
5. Check the code to confirm that the watchdog is not in use and no other active reset operations were found;
6. We compared all registers and found that NMI is constantly resetting (register 706 is set to 1);
7. The code did not perform any operation on this register;
8. Attempting to modify this bit through uniFlash and CCS, but without re burning the program, it is read-only and cannot be written;
9. Question: How to restore this board without re burning the program? How do we need to solve this problem?