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Altera_Forum's avatar
Altera_Forum
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14 years ago

Help me Flash Cyclone III development kit

some master help me ....about config flash on cyclone iii development kit....

my project need to use the Flash as a store component.....so when i assign pin for it ....and build by Quartus...i have run my program to open device flash but it not work....i dont know what happent...

- My flash 64m 25bit adress and 16 bit data....

- I have used tristate bridge obey userguide of altera.

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    hi there. I had some problems with the flash on a dev board. I solved it by editing the .v file of the system with the following lines ( I added the Reset and Write protected signal) 

    module flash (
               // 1) global signals:
                clk_0,
                reset_n,
               // the_tri_state_bridge_0_avalon_slave
                address_to_the_cfi_flash_0,
                read_n_to_the_cfi_flash_0,
                select_n_to_the_cfi_flash_0,
                tri_state_bridge_0_data,
                write_n_to_the_cfi_flash_0,
 reset_flash,
 wp_n_flash
             );
	output reset_flash;
	assign reset_flash=reset_n;
	output wp_n_flash;
	assign wp_n_flash=1'b1;

    Hope it's useful.

    regards, Alex
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    Thank Gadlex so much for your helping....i have solved my problem....i remove pin reset_flash...and my project can access to Flash....when i use a program to open the flash device....it ok.....i just need it like a store component....so i dont need to reset....thank again...