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PICDEM2 Scheda tecnica(PDF) 17 Page - Microchip Technology

Il numero della parte PICDEM2
Spiegazioni elettronici  simple board
PDF  60 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PICDEM2 Scheda tecnica(HTML) 17 Page - Microchip Technology

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PICDEM 2 User’s Guide
DS30374D-page 12
 2001 Microchip Technology Inc.
4.1 Main Routine
The main routine of a2d.asm handles the initialization of the PICmicro MCU
and then waits in an infinite loop. The first few lines set PORTA as inputs and
PORTB as outputs. InitializeAD, the Analog to Digital converter initialization
routine, is then called. After the return from InitializeAD, the routine waits
for Tad (A/D conversion clock) and then starts an A/D conversion. The
program then enters an infinite loop with the reading of the A/D and the
updating of the LEDs handled by an interrupt routine Service_Int.
Figure 4.2: Main Routine
Start
Configure PORT B
Configure PORT A
(InitializeAD)
Wait for Tad
(SetupDelay)
Start A/D conversion
Service_Int
Initialize A/D module
A/D Complete?
No
Yes



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