Add the interrupt support to IP-408

[grasswang]

Add the interrupt support to IP-408

[grasswang]

I did some tests; it looks like this IOC crash because the pulse is short. If I flipped the pulse then the IOC crashs if I setup the rising edge for interrupt. Turn on the neighboring channels crashes the IOC when there is a short positive pulse, but seem to be ok whem there is a short negative pulse (normally 5V, the 10 us pulse to 0V)

input 10us positive pulse, in ch1

====when ch1 is not setup for interrupt============
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x5,0x5) -- didn't crash;both channel next to channel 1 are COB, but ch1 is not set for interrupt
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x0,0x1) ----didn't crash; one of the channel next to channel 1 is set for falling edge
====crash ====================================
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x0,0x2) -- crash --(ch1 faliing)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x7,0x2) -- crash -- neighboring channels of ch1 are also setup for interrupt (ch1 COB)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x3,0x2) -- crash -- one neighboring channel of ch1 is setup for interrupt (ch1 COB)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x3,0x0) -- crash -- one neighboring channel of ch1 is setup for interrupt (ch1 rising)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x7,0x0) -- crash -- neighboring channels of ch1 are setup for interrupt (ch1 rising)
====works!!====================================
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x2,0x2) --Good --getting interrupt at channel1 for once each pulse, (ch1 COB)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x2,0) --Good --getting interrupt at channel1 for once each pulse, (ch1 rising)

---

input 10us negative pulse (normally 5V, goes to 0V for 10 us), in ch1

initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x5,0x5) -- didn't crash; both channels next to channel 1 are COB, but ch1 is not set for > interrupt
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x0,0x1) ----didn't crash; one of the channels next to channel 1 is set for falling edge
====crash ====================================
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x2,0) --crash-- (ch1 rising)
====works!!====================================
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x2,0x2) --Good -- getting interrupt at channel1 for once each pulse, (ch1 COB)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x0,0x2) --Good -- getting interrupt at channel1 for once each pulse, (ch1 falling)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x2,0x7) -- Good-- neighboring channels of ch1 are also setup for interrupt (ch1 COB)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x2,0x3) -- Good-- one neighboring channel of ch1 is setup for interrupt (ch1 COB)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x0,0x3) -- Good-- one neighboring channel of ch1 is setup for interrupt (ch1 falling)
initIpUnidig("Unidig1", 0, 0, 1, 0xd0,0x7,0x0) -- Good-- neighboring channels of ch1 are setup for interrupt (ch1 falling)