MSP430 MCU Development Record (6)

tiankai001

MSP430 MCU Development Record (6) [Copy link]

This content is originally created by EEWORLD forum user tiankai001. If you need to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source. Msp430 MCU Development Record (6) Phenomenon: When debugging the msp430f5xxx microcontroller, the static current is large (about 100uA larger than the normal value). After checking the program and circuit, no problem was found. Test: Because this program is relatively simple, it was confirmed that there was no problem after checking. In desperation, I found a similar program to compare and found that from the beginning of the program to entering the main loop, except for the unused functions, the only difference was that in the previous program using the same microcontroller, there was an additional AD conversion program in the program initialization. So I tried to add an AD conversion in the initialization part of this program. The current immediately returned to normal. Verification: After adding the AD conversion program, the current has been normal after repeated tests. Remarks: I asked TI's customer service about this problem, but they couldn't explain it clearly. I checked all the relevant manuals and found no such instructions. It may be my mistake, but this is the current situation. So I think it is a defect of this microcontroller.