??? 04/22/10 08:16 Read: times |
#175264 - But i've used up INT0 and INT1 pins Responding to: ???'s previous message |
to my understanding to make a gated timer/s pins P3.2 or P3.3 have to be set high, both these INT0 and INT1 pins have be used up (one for IR decoding and other for ZCD) it not possible to configure one of the timer, say TR1 as a counter and feed the zcd Square wave signal to both INT1 and T1 pins and allow TR1 to overflow and generate interrupt? then INT1 responds to falling edge and ET1 responds to rising edge. Arun |