industrialNETworX

Hello,

    We have designed Digital Servo controller hardware using a microprocessor which is memory mapped to comX via DPM.   Up until recently, our uP application would exchange cyclical data with the comX by way of interrupt notification from the comX.    This stopped working when we received some new comX modules which we integrated into our Digital Servo controller.   On the surface, it appears that the problem is that the comX interrupt line goes low, this triggers the ISR on our uP at which point, the usual cifXInterrupt() handling occurs.  However, the interrupt line never goes high again.

   I am wondering exactly how the Interrupt Acknowledge is generated from the Host side?   Is it when handshaking bits are read, or written?    Knowing this would help me determine root cause of failure. 

Thanks,

-Pete-