access to BRAM

[Sophia_123]

Hi,

The data width of BRAM is 32-bit,if I transfer data to BRAM in SDK,can I use the function  Xil_Out8 or should Xil_Out32 ?

Regards,

Sophia

[D@n]

Why not ...

int *a = bram_addr;
*a = your_favorite_number;

?

Dan

[sbobrowicz]

I've never used it, but Xil_Out8 should work just fine. Don't think you will see any performance gains over doing 32-bit accesses in your code, but if it is for convenience sake I get it. 

Dan's suggestion should also work, but be aware that it's behavior may change depending on what the size of "int" is (I don't know of the top of my head) and whether or not bram_addr is aligned to the size of int. I think unaligned accesses might have behavior counter-intuitive to what you would expect...