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Gokulraj's avatar
Gokulraj
Icon for New Contributor rankNew Contributor
10 months ago

How to access the 8GB ram of DDR in Agilex 7

Hi, I need to access 8GB DDR ram in agilex dev kit,but now i able to access only 2GB ram.While trying to access the remaining 6GB of ram ot throw error as "TFTP error: trying to overwrite reserve...
Arm Processor
Sw Development
tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
8 months ago

Hi


Let me try to reproduce this in the board we have here.


Just to confirm, the tftp to the reserved memory is working on your end and currently the issue is when you are writting from the reserved memory to the sd card?


Could you please share me the command that you use to write into the mmc?


Regards

Jingyang, Teh


Gokulraj's avatar
Gokulraj
Icon for New Contributor rankNew Contributor
8 months ago

Hi,

Yes i can write in the reserved memory.

I've used the following commands and attached serial terminal log for your reference.

SOCFPGA_AGILEX # setenv ipaddr 192.168.12.111
SOCFPGA_AGILEX # setenv serverip 192.168.12.121
SOCFPGA_AGILEX # setenv loadaddr 0x280000000
SOCFPGA_AGILEX # tftp ${loadaddr} emmc-image-agilex.img

SOCFPGA_AGILEX # setexp blkcnt ${0x6000000}/0x200
SOCFPGA_AGILEX # mmc write ${loadaddr} 0 0x30000

Thanks,

Gokulraj