topic Re: [MPC5674F] Use i-cache as ram in MPC5xxx

[MPC5674F] Use i-cache as ram

mtg — Mon, 29 Jan 2018 16:43:50 GMT

Hello,

Is it possible to use the i-cache as an instruction RAM on MPC5674F?

I read the cookbook and I was able to use the d-cache as RAM. I did the analogous process to the i-cache however it seems that the instructions copy process isn't working. The cache continues empty.

If possible, is there any code example for the i-cache?

Thanks

Re: [MPC5674F] Use i-cache as ram

davidtosenovjan — Tue, 30 Jan 2018 08:15:07 GMT

Yes, it is possible, it works same way as data cache, it is needed to used icbtls instruction for that purpose.

If you create a case with reference to this thread, I will send you example I have written in the past for MPC5643L device doing the same:

https://community.nxp.com/docs/DOC-329745

Re: [MPC5674F] Use i-cache as ram

mtg — Tue, 30 Jan 2018 12:24:09 GMT

Hi David, thanks for your support.

I'm already using the icbtls instruction, but it's not working. I created the case #00149639, can you send the example files please?

Re: [MPC5674F] Use i-cache as ram

Jerry_zhan — Tue, 12 Oct 2021 06:35:55 GMT

Hi,

I am in a situation of USE L1 D-Cache as RAM. Can you share with me with cookbook you were talking about?