i.MX Processorsのトピック6ull ddr3 configuration

6ull ddr3 configuration

lvjz — Wed, 20 Nov 2019 00:21:53 GMT

Hi, we used nxp 6ull and winbond ddr3(w631GG6mb).The system occasionally crashes .We did not encounter this problem when using Samsung ddr3. Winbond engineers are helping to solve this problem.
When Winbond engineers deal with the problem,he need a memory configuration so that the memory clock keeps output.We have tried 21B_0004H [15:8] set to 0 ,and 21B_0404H [0] set to 1. But the memory clock still has a break.How do I set registers to keep the memory clock uninterrupted?

Re: 6ull ddr3 configuration

Rita_Wang — Wed, 20 Nov 2019 07:19:18 GMT

About the DDR configuration you can use the script https://community.nxp.com/docs/DOC-333791

Re: 6ull ddr3 configuration

lvjz — Wed, 20 Nov 2019 07:59:13 GMT

We have used the script to configurate the DDR3 . I’d like to know which register and how to config so that I can keep the DDR3 clock uninterrupted. We tried disable MAPSR[PSD], MDPDC[PWDT_1], MDPDC[PWDT_0], MDPDC[PRCT_0],MDPDC[PRCT_1]. ,but these don't work .