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Altera_Forum's avatar
Altera_Forum
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8 years ago

Write/Read RAM memory from FPGA.

Hello. I'm using de0-nano-SoC kit for some experiments. I'v already figure out how to access to the RAM memory from HPS side, I can read or write data there (trough /dev/mem). So I don't have problem...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Hooray)

Probably it helps for someone:

soc_system_onchip_memory2_0 m(

.address(1)

, .byteenable(4'b1111)

, .chipselect(1'b1)

, .clk(FPGA_CLK1_50)

, .clken(1'b1)

, .reset(hps_fpga_reset_n)

, .reset_req(1'b0)

, .write(1'b1)

, .writedata(32'hF0F0F0F0)

, .readdata(datain)

);

here we write 0xF0F0F0F0 to the address 1 of RAM : https://screencast.com/t/hgfjc3wcc0uu

for this moment I can't read it from /dev/mem on linux, but keep digging :)