I'm having trouble getting started with the 18F45K20 demo board that=20 came with my PicKit3. Having only used PIC12 and PIC16 series before, the PIC18 looks quite=20 foreign! I've set up a new project, modified the 16F46K20 template a little as=20 there was no template for the 18F45K20. Now, my aim is to just light some of the LEDs on the demo board. I'm=20 using assembler in absolute mode to start with. The main program looks like this: START BANKSEL TRISD movlw 0x00 movwf PORTA movwf PORTB movwf PORTC movwf PORTD BANKSEL PORTD movlw b'10101010' movwf PORTA movwf PORTB movwf PORTC movwf PORTD GOTO $ =20 That produces nothing from the LEDs, so I'm obviously missing=20 something. Can someone please point me to a working example to flash=20 the LEDs? Everything on the 'net seems to be in C. David... --=20 ___________________________________________ David Duffy Audio Visual Devices P/L Unit 8, 10 Hook St, Capalaba 4157 Australia Ph: +61 7 38235717 Fax: +61 7 38234717 Our Web Site: www.audiovisualdevices.com.au ___________________________________________ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .