Difference between revisions of "PIC16F684"
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==Configuring I/O== |
==Configuring I/O== |
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<pre> |
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INIT_IO |
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BANK0 |
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CLRF PORTA ;Init PORTA - initially set to LOW |
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MOVLW B'000101' ;Set RA<0> as input |
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MOVWF TRISA ; and set RA<5:1> |
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; as outputs |
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BANK1 |
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CLRF PORTC ;Init PORTC - initially set to LOW |
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MOVLW B'000000' ;Set RC<5:0> as outputs |
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MOVWF TRISC |
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CLRF ANSEL ;Set all pins initially to digital I/O |
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MOVLW B'000001' |
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MOVWF ANSEL ;Set AN<0> (RA<0>) to Analog input |
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; RA<5:1> remain digital I/O |
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RETURN |
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</pre> |
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==Setting Up for PWM Output== |
==Setting Up for PWM Output== |
Revision as of 17:52, 11 July 2006
Overview
For a complete list of features, see this printout from the datasheet.
IMPORTANT: See PIC16F684 Registers for detailed information on registers.
Pinout
Label | Description |
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+ 5 V | |
Ground | |
External Voltage Reference | |
PORTA/PORTC Programmable I/O | |
A/D Channel | |
External Interrupt Input | |
PWM Output |
Initialization
Configuring I/O
INIT_IO BANK0 CLRF PORTA ;Init PORTA - initially set to LOW MOVLW B'000101' ;Set RA<0> as input MOVWF TRISA ; and set RA<5:1> ; as outputs BANK1 CLRF PORTC ;Init PORTC - initially set to LOW MOVLW B'000000' ;Set RC<5:0> as outputs MOVWF TRISC CLRF ANSEL ;Set all pins initially to digital I/O MOVLW B'000001' MOVWF ANSEL ;Set AN<0> (RA<0>) to Analog input ; RA<5:1> remain digital I/O RETURN