PIC16F724-E/MV Microchip Technology, PIC16F724-E/MV Datasheet - Page 103

• Manufacturer Part Number: PIC16F724-E/MV
• Description: 7KB Flash Program, 1.8V-5.5V, 16MHz Internal Oscillator, 8b ADC, CCP, I2C/SPI, A
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F724-E/MV

• Processor Series: PIC16F
• Core: PIC
• Program Memory Type: Flash
• Program Memory Size: 7 KB
• Data Ram Size: 192 B
• Interface Type: I2C, SPI, AUSART
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: UQFN-40
• Development Tools By Supplier: MPLAB IDE Software
• Minimum Operating Temperature: - 40 C
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: -
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Lead Free Status / Rohs Status: Details

9.2.6
This is an example procedure for using the ADC to
perform an Analog-to-Digital conversion:
1.
2.
3.
4.
5.
6.
7.
8.
© 2009 Microchip Technology Inc.
Note 1: The global interrupt can be disabled if the
Configure Port:
• Disable pin output driver (Refer to the TRIS
• Configure pin as analog (Refer to the ANSEL
Configure the ADC module:
• Select ADC conversion clock
• Configure voltage reference
• Select ADC input channel
• Turn on ADC module
Configure ADC interrupt (optional):
• Clear ADC interrupt flag
• Enable ADC interrupt
• Enable peripheral interrupt
• Enable global interrupt
Wait the required acquisition time
Start conversion by setting the GO/DONE bit.
Wait for ADC conversion to complete by one of
the following:
• Polling the GO/DONE bit
• Waiting for the ADC interrupt (interrupts
Read ADC Result.
Clear the ADC interrupt flag (required if interrupt
is enabled).
register)
register)
enabled)
2: Refer to Section 9.3 “A/D Acquisition
A/D CONVERSION PROCEDURE
user is attempting to wake-up from Sleep
and resume in-line code execution.
Requirements”.
(1)
(2)
.
PIC16F72X/PIC16LF72X
EXAMPLE 9-1:
;This code block configures the ADC
;for polling, Vdd reference, Frc clock
;and AN0 input.
;
;Conversion start & polling for completion
; are included.
;
BANKSEL
MOVLW
MOVWF
BANKSEL
BSF
BANKSEL
BSF
BANKSEL
MOVLW
MOVWF
CALL
BSF
BTFSC
GOTO
BANKSEL
MOVF
MOVWF
ADCON1
B’01110000’ ;ADC Frc clock,
ADCON1
TRISA
TRISA,0
ANSELA
ANSELA,0
ADCON0
B’00000001’;AN0, On
ADCON0
SampleTime ;Acquisiton delay
ADCON0,GO
ADCON0,GO
$-1
ADRES
ADRES,W
RESULT
A/D CONVERSION
;
;V
;
;
;Set RA0 to input
;
;Set RA0 to analog
;
;
;Start conversion
;Is conversion done?
;No, test again
;
;Read result
;store in GPR space
DD
reference
DS41341E-page 103