Sir,
I am working on Cortex-M4 over serial wire debug protocol, i am able to read IDCODE(0x2ba01477) which is correct as per arm cortex m4 technical reference manual, and i am writing 0x50000000 to CTRLSTAT register to enable CSYSPWRUPREQ and CDBGPWRREQ which is also success without any ACK error,but the thing is when i am trying to read the CTRLSTAT register i got 0xffffffff . I don't understand what might be the problem,Please suggest me what would be the problem??
Thanks & Regards
Well, it was worth the try, thank you for taking the time to look at it, Joseph.
harshan_behra -This is a very special case, only very few people have been working with it, so there might not be many people who can answer.
That means you're in pioneer-land, which is one of the most interesting places to be, but also one of the most difficult places to be at the same time.
If / when you find the answer, please let us know what caused the problem.