Processor Expert Software中的主题 Problems with UART with interrupts and FLASH on S08mm32

Problems with UART with interrupts and FLASH on S08mm32

Spikey_Mikey — Fri, 11 Aug 2017 05:46:06 GMT

I have a codewarrior 10.7 / processor expert project for the S08mm32. I am using the processor expert beans for the AsynchroSerial using interrupts (because I need to use the buffer) and the IntFLASH. If I have interrupts enabled on the asynchronous serial, writing and reading from flash hangs.the processor. If I don't have interrupts enabled, writing and reading from flash works, but I can't get the asynchronous serial to work (possibly because I can't poll quick enough to service it). How can I get both to work?

Let me know if there is more information I can offer.

Thanks!

Re: Problems with UART with interrupts and FLASH on S08mm32

Alice_Yang — Fri, 18 Aug 2017 09:50:13 GMT

Hello Mike,

I'm afraid that S08 flash is not readable while being programmed, and so

you have to disable interrupts when write/erase flash.

There is a same question with yours, you can have a look: https://community.nxp.com/message/931493

I think you can transmit a block of data ,then flash, then transmit a block data, then ...

Hope it helps

Alice

Re: Problems with UART with interrupts and FLASH on S08mm32

Spikey_Mikey — Tue, 29 Aug 2017 04:26:25 GMT

Thanks for pointing me to the other thread. I feel like I covered the issues described there. For example, here is how I do my flash writes:

void HandleFlashWrite(){
byte bErr;

if((gbWriteFlash==1)&&(gbNumberOfFlashBytes<37)){
__DI(); // Disable interrupts
bErr = IFsh1_SetBlockFlash(&gbFlashData[0],gwFlashAddress, gbNumberOfFlashBytes);
gbWriteFlash = 0;
__EI(); // Enable interrupts

}
}

However, I still end up with my code hung every so often. Is there more than just disabling interrupts during flash writing that I need to take care of?

Thanks,

Mike

Re: Problems with UART with interrupts and FLASH on S08mm32

Alice_Yang — Tue, 29 Aug 2017 06:03:44 GMT

Hello Mike,

Maybe the flash command is wrong, maybe something else.

You need debug step into to check where it hung ,then check the reason.

Alice