Does anyone have simple way to generate a square wave with a '54, 1 to 500Hz at 1Hz intervals. Selection done using port b as inputs. Thanks. **************************************************** __ Micheal Yano ---- Internet: myano@cimtek.on.ca -CIMTEK- IBMMAIL: i1320285@IBMMAIL.COM ------------ Voice: (905)847-8811 x22 FAX: (905)847-8822 ****************************************************