Could you help me to solve the problem.Do you have the code to verify the thumb instruction ? If have,the code can check any corner the functions of thumb instructions
This is a timing issue, when it runs at lower frequency,the result of SUBS R2,R2,R4 is correct.So we want to pick up those bad chips by running code. But how to pick up?
Can you do at-speed test with scan chains?
Never do this before,How to do at-speed test with scan chins?
It is similar to normal DFT scan test, but the capture cycle (gap between last shift to capture clock edge) is using normal clock speed.
https://www.eetimes.com/document.asp?doc_id=1217753
Thank you very much!