PowerQUICC ProcessorsのトピックRe: uART Interrupt Issue for T1042

uART Interrupt Issue for T1042

love_hate_and_repeat — Fri, 30 Aug 2019 10:26:11 GMT

I mentioned this problem in another question without giving my uART driver example and I want to share my uART Interrupt Driver Application with you maybe you can help to solve this problem. I spent a lot of time to solve this problem but I didnt solve in any manner. I run this application as standalone on T1042 board. I place uART driver to ram by u-boot tftp command and after that i run bootelf command of u-boot to execute uART Driver application. by the way, The content of IVPR register is 0x7ff10000

when I send serial data to the board Interrupt handler doesnt run or CPU doesnt call interrupt handler function. It jumps another exception handler like below picture. uART Driver is attached. you can look at it and say what i make mistakes in code side.

after i run application, I send serial data to the application over uART but i get this message like below.

thanks in advance.

Re: uART Interrupt Issue for T1042

yipingwang — Tue, 03 Sep 2019 04:05:27 GMT

Please refer to the attached T1042 UART driver provided in CodeWarrior.

Re: uART Interrupt Issue for T1042

love_hate_and_repeat — Thu, 05 Sep 2019 13:30:01 GMT

I reviewed driver and it's using polling method to receive character. I'm new for driver concept and i wonder why my code is not working. which part of code is inadequate because when new character is received interrupt doesnt happen I mean another interrupt handler is called by processor like external interrupt exception , floatin point unavailable exception.

If you know the reason my interrupt handler is not being called please can you explain it with a lot of details.

Re: uART Interrupt Issue for T1042

love_hate_and_repeat — Fri, 13 Sep 2019 11:16:34 GMT

I resolved my problem.