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PICDEM2 Folha de dados(PDF) 16 Page - Microchip Technology

Nome de Peças PICDEM2
Descrição Electrónicos  simple board
PDF  60 Pages
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Fabricante Electrônico  MICROCHIP [Microchip Technology]
Página de início  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PICDEM2 Folha de dados(HTML) 16 Page - Microchip Technology

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 2001 Microchip Technology Inc.
DS30374D-page 11
PICDEM 2 USER’S GUIDE
12
Chapter 4. A/D Demo
The a2d.asm program is a simple implementation of the analog-to-digital
(A/D) converter. The program reads A/D channel 0 and displays the results on
the LEDs connected to PORTB. If the potentiometer is turned all the way
clockwise, all of the LEDs are off. If the potentiometer is turned all the way
counter-clockwise, all of the LEDs are turned on. The program is interrupt
driven, i.e., the program sits in an infinite loop until the A/D converter
interrupts when the conversion is complete and then updates the values on
the PORTB LEDs.
For more information on A/D module operation, please refer to the PICmicro
Mid-range MCUFamily Reference Manual for an operational description and a
list of related application notes. For detailed information on the PICDEM 2
hardware, please refer to Appendix A.
Figure 4.1: A/D Demo
PICDEM 2 DEMO BOARD
U1
PIC16C64/74
RA0
RN1
7
6
5
4
3
2
10
RN2
PORT B
©1994
FFh
00h
POTENTIOMETER
LEDs
U2
PIC16C73
(28-pin Device)
(40-pin Device)



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