參數(shù)資料
型號: PIC12F510_07
廠商: Microchip Technology Inc.
英文描述: 8/14-Pin, 8-Bit Flash Microcontroller
中文描述: 8/14-Pin,8位閃存微控制器
文件頁數(shù): 56/116頁
文件大小: 907K
代理商: PIC12F510_07
PIC12F510/16F506
DS41268C-page 54
Preliminary
2007 Microchip Technology Inc.
REGISTER 9-2:
EXAMPLE 9-1:
PERFORMING AN
ANALOG-TO-DIGITAL
CONVERSION
EXAMPLE 9-2:
CHANNEL SELECTION
CHANGE DURING
CONVERSION
ADRES REGISTER
R-X
R-X
R-X
R-X
R-X
R-X
R-X
R-X
ADRES7
bit 7
ADRES6
ADRES5
ADRES4
ADRES3
ADRES2
ADRES1
ADRES0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
;Sample code operates out of BANK0
MOVLW 0xF1
MOVWF ADCON0
BSF ADCON0, 1
BTFSC ADCON0, 1;wait for ‘DONE’
GOTO loop0
MOVF ADRES, W
;read result
MOVWF result0
;save result
;configure A/D
;start conversion
loop0
BSF ADCON0, 2
BSF ADCON0, 1
BTFSC ADCON0, 1;wait for ‘DONE’
GOTO loop1
MOVF ADRES, W ;read result
MOVWF result1
;save result
;setup for read of
;channel 1
;start conversion
loop1
BSF ADCON0, 3
BCF ADCON0, 2
BSF ADCON0, 1
BTFSC ADCON0, 1;wait for ‘DONE’
GOTO loop2
MOVF ADRES, W
;read result
MOVWF result2
;save result
;setup for read of
;channel 2
;start conversion
loop2
MOVLW 0xF1
MOVWF ADCON0
BSF ADCON0, 1
BSF ADCON0, 2
;configure A/D
;start conversion
;setup for read of
;channel 1
loop0
BTFSC ADCON0, 1;wait for ‘DONE’
GOTO loop0
MOVF ADRES, W
;read result
MOVWF result0
;save result
BSF ADCON0, 1
BSF ADCON0, 3
BCF ADCON0, 2
BTFSC ADCON0, 1;wait for ‘DONE’
GOTO loop1
MOVF ADRES, W
;read result
MOVWF result1
;save result
;start conversion
;setup for read of
;channel 2
loop1
BSF ADCON0, 1
BTFSC ADCON0, 1;wait for ‘DONE’
GOTO loop2
MOVF ADRES, W
;read result
MOVWF result2
;save result
CLRF ADCON0
;optional: returns
;pins to Digital mode and turns off
;the ADC module
;start conversion
loop2
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