参数资料
型号: DM163001
厂商: Microchip Technology
文件页数: 36/57页
文件大小: 0K
描述: BOARD DEMO PICDEM-1
标准包装: 3
其它名称: DM163001R
DM163001R-ND
PICDEM-1
PICDEM-1 User’s Guide
5.6
Source Code – PIC16F84
list p=16f84
;
;
;
;
;
;
This program demonstrates the PIC16F84.
To demo the EEPROM capability of the PIC16F84, then
a value is incrementally written and verified in all
64 locations of the EEPROM. If an error occurs at any location,
then all leds on portb will blink at a 1 sec rate.
;
#include <P16F84.INC>
;
TIME equ 0x10
GPFLAG equ 0x20
EEPERROR equ 0
;
org 0
goto Start
;
org 4
goto ServiceRtcc
;
org 10
Start
clrf GPFLAG
movlw B’00000000’
movwf PORTB
bsf STATUS, RP0
;Define flag register
;GPFLAG,0
;clr all flags
;make port b outputs
Next
clrf TRISB
bcf STATUS, RP0
;
/
call WriteAll
call CheckAll
btfsc GPFLAG,EEPERROR
goto BlinkLeds
incf PORTB, F
goto Next
;
WriteAll
clrf EEADR
incf PORTB,W
movwf EEDATA
bsf STATUS,RP0
bsf EECON1,WREN
bcf STATUS,RP0
DS33015C-page 32
;write to all locations
;verify all locations
;no error then skip
;else blink leds.
;inc value in port b
;start at addr = 0
;read current value+1
;ld. data reg.
;select pg 1
;enable write operation
;select pg 0
? 1999 Microchip Technology Inc.
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