topic Re: Flash memory testing in CodeWarrior Development Tools

Flash memory testing

Aaran — Thu, 07 Jul 2022 01:34:56 GMT

How to perform memory testing for flash memory? Is there any algorithm to perform flash memory test?

Re: Flash memory testing

ZhangJennie — Mon, 11 Jul 2022 06:26:07 GMT

Could you please let us know your chip part number and CodeWarrior version thus we can assign right engineer for your question?

Thanks,

Jun Zhang

Re: Flash memory testing

Aaran — Thu, 14 Jul 2022 03:24:27 GMT

Thanks Jun Zhang,

For MPC5566

Re: Flash memory testing

lukaszadrapa — Thu, 14 Jul 2022 10:09:35 GMT

Hi,

In case of MPC5566, there are no features like Flash Array Integrity Check or CRC module which can be found on newer devices. There’s only ECC which helps to check data integrity.

So, there are two points:

- handle possible ECC errors as required. We have this application note:

https://www.nxp.com/docs/en/application-note/AN5200.pdf

https://www.nxp.com/docs/en/application-note-software/AN5200SW.zip

- you can implement own SW check of data/code in flash. Read the flash areas you need and calculate own checksum/crc by software and then check the result.

Regards,

Lukas