about GPT GPIO in C5505 EVM

i configure all the interrupt in DSP/BIOS, i use timer to generate a sync signal output at gpio 11, so it works and the gpio output a sync signal which is 10 ms 1 and 990 ms 0 until i stop it. i set gpio 10 as a input pin and let it trigerred a interrupt when it encount a rising edge. inside the interrupt routine i let variant count increas 1 when gpio is triggered.however, the gpio only trigger once then the gpio 11 stop to send any sync signal.

Can somebody help me.
Best regards
reynold Start a New Thread

All software interrupts need to be acknowledged in the interrupt service routine. There should be documentation to this effect if you look for it. I assume that the corresponding GPIO Interrupt Flag Register 2 should be read within your interrupt service routine, and if you do that then you will get a steady stream of interrupts - not just the first one. Start a New Thread