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LinusGrun
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3 months ago
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intel_onchip_Memory II RAM: r/w doesn t work from FPGA but from HPS

  Hi guys, I try to write and read to/from a intel_onChip Memory 2 RAM. But it only sets the first or the last byte in the RAM to 0x00 depending on how high I set the ram_addr_reg. I am using a A...
  • LinusGrun's avatar
    LinusGrun
    2 months ago

    Hi Guys,

    please excuse me, I made such a bad mistake.
    I forgot to implement the interface Signal Names to the Soc Implementation.

    Now I can read and write to and from the RAM.

     // Interne Signale für RAM-Schreiblogik
    reg [7:0]   ram_addr_reg;      // Adresse für On-Chip-RAM (128-Bit Wortadressierung)
    reg [127:0] ram_writedata_reg; // Daten für RAM
    reg         ram_write_reg;     // Write Enable für RAM
    reg [15:0]  ram_byteenable_reg;// Welche Bytes im Wort geschrieben werden
    reg         ram_writing;       // FSM: RAM wird beschrieben
    reg [127:0] ram_readdata;
    reg            ram_read;

    wire [7:0] ram_1_s1_address;
    wire [127:0] ram_1_s1_writedata;
    wire ram_1_s1_write;
    wire [15:0] ram_1_s1_byteenable;
    wire ram_1_s1_read;
    wire [127:0] ram_1_s1_readdata;



    // Verbindungen zu Qsys-RAM-Ports
    assign ram_1_s1_address    = ram_addr_reg;
    assign ram_1_s1_writedata  = ram_writedata_reg;
    assign ram_1_s1_write      = ram_write_reg;
    assign ram_1_s1_byteenable = ram_byteenable_reg;
    assign ram_1_s1_read       = ram_read;//1'b0; // nur schreiben
    assign ram_1_s1_readdata   = ram_readdata;


    assign ram_1_s1_clk       = fpga_clk_100;
    assign ram_1_s1_reset     = fpga_reset_n;
    assign ram_1_s1_reset_req = 1'b0;

     

     

    Greez, idiot