FPGA Central

Hello everybody,

I am trying to interface my user logic ip_inv through the OPB in EDK
using a register like this:

the c code in my test_application to access the ipcore is :

IP_INV_mWriteReg(0x00000010, 0, read_val);
read_val2=IP_INV_mReadReg(0x00000010, 0);

My user logic is just a not operation. How do we make sure that the
value is written from the IPIF register into the user logic and then
back to the IPIF register ? I am expecting a inverted value in
"read_value2" but I am getting the same value as "read_value".


Thanks,
KOustav

On Jun 4, 2:22 am, Koustav <kousta...@gmail.com> wrote:
> Hello everybody,
>
> I am trying to interface my user logic ip_inv through the OPB in EDK
> using a register like this:
>
> the c code in my test_application to access the ipcore is :
>
> IP_INV_mWriteReg(0x00000010, 0, read_val);
> read_val2=IP_INV_mReadReg(0x00000010, 0);
>
> My user logic is just a not operation. How do we make sure that the
> value is written from the IPIF register into the user logic and then
> back to the IPIF register ? I am expecting a inverted value in
> "read_value2" but I am getting the same value as "read_value".
>
> Thanks,
> KOustav

why don`t you implement a sum operator?. It is simplest and it
provides you that information.