Why not disign custom logic that runs a counter and measure the
difference in the edges of interest?  Then latch that counter results
and read it into the NIOS.

gm

I'm trying to get RC5 coded IR signal on nios from a micro controller

The problem is i'm getiing input as a pattern say a signal from an IR
receiver which will be converted to digital with an ADC. i must measure
the delay between rising edge and falling edge. if i use 50Mhz clock on
nios , will i be able to get same delays as micro controller gets at 7
odd Mhz

badari.joshi@gmail.com wrote:
> hi all! I'm using NiosII with StratixII. i wanted to get interrupts
> from a micro controller of 7.393MHz Oscillator which generates half the
> oscillator clock. Nios works at 50Mhz. so what modification i need to
> do on nios
> 

You should not need anything special - just treat the incoming interrupt 
signal as an asynchronous input (use a couple of latches to reduce the 
chance of metastability).

hi all! I'm using NiosII with StratixII. i wanted to get interrupts
from a micro controller of 7.393MHz Oscillator which generates half the
oscillator clock. Nios works at 50Mhz. so what modification i need to
do on nios