msp430fr5992 runtime problem

fish001

msp430fr5992 runtime problem [Copy link]

I am working on a project recently, using the msp430fr5969 chip. In order to reduce the time consumed in the interrupt, I expanded a for(i=0;i<8;i++) loop statement in the interrupt (the purpose is to use space for time, and the expansion will save ++ and judgment statements). After testing, it is indeed more time-saving than using a for loop. Later, the project function was expanded, and the flash (64k) of the msp430fr5969 was not enough. Now it is replaced with msp430fr5992 (the pins are fully compatible, but the flash has been expanded from 64k to 128k). After testing, in the msp430fr5992, expanding the for loop statement actually consumes more time than using a for loop. I don't understand the reason, and I would like to ask for advice from experts.