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ggxnd's avatar
ggxnd
Icon for New Contributor rankNew Contributor
3 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
3 years ago

Hi,


Yes. There're some memory limitations as some of the address locations are not writeable. I would suggest you using this method to verify the matching of the write and read data:

int main() {

IOWR_32DIRECT(ONCHIP_MEM_BASE, 0x1FFFFF, "<string>");

printf("%s\n", IORD_32DIRECT(ONCHIP_MEM_BASE, 0x1FFFFF));


return 0;

}


Thanks,

Best Regards,

Sheng