Hello,
My board (i.MX 8MQuad EVK) has one 3GB (768Meg x 32) LPDDR4 IC. DISTRO is L4.9.88_2.0.0 version.
If I depopulate the RAM and populate another IC with bigger or smaller density than 3GB, how can I configure this change? Is there any limitation for allowed density size on my board?
Best Regards,
Jeff
Hi Jeff
please check ddr tool on below link and Chapter 4 How to bring up a new MX8M board MX8M_DDR_Tool_User_Guide.docx included in package.
i.MX 8M DDR Tool Release
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi igor,
Thank you for reply. I've tried to modify the excel file "MX8M_LPDDR4_register_programming_aid_EVK_preliminiary_v16.xlsx" to generate new script file for DDR tool.
When I change density related parameters on top table, I see connected ADDRMAP* registers are changed accordingly.
Btw, which source program file defines these register values?
Best Regards,
Jeff
Hi Jeff
seems this is described on p. 11 MX8M_DDR_Tool_User_Guide.docx included in package.
Best regards
igor
Hi igor,
Thanks. I will generate script file for different DDR densities by "MX8M_LPDDR4_register_programming_aid_EVK_preliminiary_v16.xlsx". DDR tool would generate updated c-program source from the script files I guess.
Best Regards,
Jeff