Andre: First off- you have port B0 and B1 set to inputs rather than outputs so you should never expect them to output. Secondly, you probably have internal pullups enabled (bit 7 RBPU* in the OPTION register) which would explain the dimly glowing LEDs. (Note the * on RBPU*. This means the signal is active low- so a 0 in bit 7 will *enable* pullups.) Brian -----Original Message----- From: Andre Abelian To: PICLIST@MITVMA.MIT.EDU Date: Friday, March 13, 1998 2:26 PM Subject: ADC using 71 > movlw B'00000011' > movwf trisb ; B0 and B1 inputs the rest