the MCU send any command to 30Z55,the feedback date are correct but the PEC value always wrong .like the picture shows :
if you have any suggestion or know the root problem please let me know .
here is the attachment about the soft program :(Please visit the site to view this file)
with the same samples i use the simulation I2C communication the feedback PEC are right .like the picture shows :
if you know why pls let me konw ,thank you very much !