参数资料
型号: PICDEM2
厂商: Microchip Technology Inc.
英文描述: simple board
中文描述: 简洁的主板
文件页数: 16/60页
文件大小: 1037K
代理商: PICDEM2
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
(40-pin Device)
RA0
RN1
7
6
5
4
3
2
1
0
RN2
PORT B
1994
FFh
00h
POTENTIOMETER
LEDs
U2
PIC16C73
(28-pin Device)
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