Hello Mr. Hung,
are you able to measure the time between interrupts when the fox-vhdl is
issuing lots of them please?
The Fox should be done the time necessary to enter and process the
interrupt before issuing another one, otherwise they will be lost.
If you have a measure of the minimum time between subsequent interrupts
we can better understand the problem and suggest a possible solution.
Best regards,
Roberto Asquini
Doan Duy Hung ha scritto:
>
> I'm trying to use the foxvhdl board and foxboard832 alltogether. The
> foxvhdl board is used to process real time audio, video, then transmit
> data to the foxboard. I have written this code to read data from the
> foxvhdl:
> while (1){
> addr = REGISTER_1;
> if (foxboneintwait(2,5)!=0xffff){
> for (i=0;i<NUMBER_REGISTER;i++){
> value=foxboneread(addr);
> fwrite(&value, 2, 1, temp_fptr);
> addr++;
> }}}
> //REGISTER_1 is the address of the first register to be read
> //NUMBER_REGISTER is the amout of register to be read
> First I write the core for foxvhdl to test the interrupt of the
> foxboard. The core can modify the frequency of the interrupt, the
> width of the highlevel and lowlevel... But when I try to catch the
> interrupt from the foxboard, the foxboard always catches the wrong
> number of the interrupt sent from the foxvhdl. For example: when the
> foxvhdl sends 200 interrupt, the foxboard catch 198, 199, 200, 201
> interrupt, and especially when the foxvhdl sends 1000 interrupt, the
> foxboard only catches about 250 interrupts? Can somebody help me!
> Best Regards!
>
>
