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ggxnd's avatar
ggxnd
Icon for New Contributor rankNew Contributor
2 years ago

Memory Conflicts in onchip ram

I am using IOWR_32DIRECT to write contents in the on-chip ram and using IORD_32DIRECT to read from the same address where I performed write operation. Upto few memory location the write and read data...
ShengN_altera's avatar
ShengN_altera
Icon for Super Contributor rankSuper Contributor
2 years ago

Hi,


I'm not able to complete in one run as well. Because some of the address locations require different data length or format and they're all mixed.

May be try to read first those address locations which got memory conflicts to know the data format and try to run in separate trial.

Btw, possible to provide your code for testing out on my platform?


Thanks,

Best Regards,

sheng


  • ggxnd's avatar
    ggxnd
    Icon for New Contributor rankNew Contributor
    2 years ago

    Hi,
    Yes. Is there any other way to address this issue? why the write data is not matching with the read data? Why the read function fails to read the write data? or Is there any memory limitations in onchip ram?

    Code is similar to the one you modified.

    int main() {

    int i = 262144;

    unsigned int addr;

    unsigned int result;

    for (addr =0; addr <=0x1FFFFF ; addr+=4) {

    IOWR_32DIRECT(BASE_ADDRESS, addr, i);

    i++;

    }

    for (addr = 0; addr <= 0x1FFFFF; addr+=4 ) {

    printf("Address: 0x%x, Value: %d\n", BASE_ADDRESS+ addr, IORD_32DIRECT(BASE_ADDRESS, addr));

    }

    return 0;

    }
    Thanks.