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RReth's avatar
RReth
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6 years ago

Hi, I am trying to read flash device ID from our Arria 10 SoC based board. (Flash device is EPCQL512). I have used Intel FPGA Serial Flash Controller 2 and clock used for IPcore is10 MHz.

After setting read enable=1 , I am getting csr_rdata_valid =1. But the data corresponding to csr_rdata_valid high is “10000000”. I have attached screenshot of data captured in Signal Tap Logic Analyz...
RReth's avatar
RReth
Icon for New Contributor rankNew Contributor
6 years ago

Hi Wolfgang,

Now I am trying to write a sector of Flash. From my understanding, first step is unprotect desired flash sector, then erase the sector and finally write the data. Is that correct?

Is there any documentation for the steps involved in each process?

Thank you,

Remya

ShafiqY_Intel's avatar
ShafiqY_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi Remya,

You may refer to my step to write with Serial Controller II IP core:

I hope this will help.

Cheers

  • RReth's avatar
    RReth
    Icon for New Contributor rankNew Contributor
    6 years ago

    Hi Wolfgang,

    I tried the steps you given above. But when I read back, I got only 0xFFFFFFFF .

    Please find the commands I passed to write 0x4 to Flash_MEM_OP_register.

    mem_write <= 1'b1;

    mem_wrdata <= 32'h00000004;

    mem_addr <= 24'h80000C;

    Could you please correct me?

    Thank you,

    Remya