12F675 | 16F628 | 16F84 | 16f877 | 16F877A | 16F88 | 18F458 | ADC | AVR | Bootloader | CAN | CCS | CRC | EAGLE | EEPROM | ICD | ICSP | IDE | JDM | LED | Macros | Microchip | MPLAB | PCB-CAD | PIC10F | Pic12f675 | PIC16F84 | PIC16F84A | PIC16F877 | PIC18 | PIC18F452 | PicBasic | PICC | PICSTART | PWM | RS-485 | RS232 | SMT | SPI | UART | USART | USB | Wireless | Wisp628 | Xilinx

Hi all, I have been pulling my hair out trying to enable a WPU in a
12F629. The pin detects an input if i put 5V on it, but shows as
clear when not. If a WPU was set, it should show an input (bit set)
when nothing is on the pin and clear when grounded. Isn't that right?
I have set GP0 as my input and enabled the WPU. Any help appreciated.
START
BCF STATUS,RP0
CLRF GPIO

MOVLW 7H
MOVWF CMCON
BSF STATUS,RP0

MOVLW B'00000010'
MOVWF OPTION_R

MOVLW B'00001001'
MOVWF TRISIO

CALL H'03FF'
MOVWF OSCCAL

MOVLW B'00000001'
MOVWF WPU

BCF STATUS,RP0
;***************************************************************

BEGIN ;WINK THE LIGHTS TO SHOW PROGRAM START

BSF GPIO,GP2
CALL DELAYP5
BCF GPIO,GP2
BSF GPIO,GP5
CALL DELAYP5
BCF GPIO,GP5
CALL DELAYP5
GPTEST BTFSC GPIO,GP0
GOTO GPSET

BSF GPIO,GP4 ;GET HERE AS GP0 CLEAR
BSF GPIO,GP1
CALL DELAY1 ;my 1 second delay routine
BCF GPIO,GP4
BCF GPIO,GP1
GOTO GPTEST

GPSET BSF GPIO, GP2 ;GET HERE AS GP0 SET
BSF GPIO,GP5
CALL DELAY1
BCF GPIO,GP2
BCF GPIO,GP5
GOTO GPTEST
END

to unsubscribe, go to http://www.yahoogroups.com and follow the instructions



(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )