DM163045 Microchip Technology, DM163045 Datasheet - Page 74

• Manufacturer Part Number: DM163045
• Description: PICDEM Lab Development Kit (with PICkit 3) General Purpose
• Manufacturer: Microchip Technology
• Series: PICDEM™r
• Type: MCUr

Specifications of DM163045

• Contents: Board, PIC kit 3
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC Micro® MCU

PICDEM
DS41369A-page 70
TM
The software flowchart for this lab is shown in Figure 4-6.
FIGURE 4-6:
The Initialize() configures the PIC16F690 as follows:
• Configure PORTC pins RC0, RC1, RC2 and RC3 and digital outputs
• Comparator 1
• CV
• Timer1 Configuration:
• Timer0
The Interrupt Service Routine, TMR0_ISR(), is shown in Figure 4-7.
Lab Development Board User’s Guide
- Enable Comparator 1.
- Make the Comparator 1 output available on the C1OUT pin configuring
- Route the CV
- Select pin C12IN0- as the inverting reference configuring TRISA1 as an input.
- Configure the C1OUT pin as an output.
- Configure CV
- Select the T1CKI pin as the Timer1 clock source making TRISA5 an input.
- Clear both Timer1 result registers TMR1H:TMR1L.
- Turn on Timer1.
- Select F
- Assign the prescaler to Timer0 and configure so that the TMR0 register
- Enable Timer0 interrupt-on-overflow
- Clear the Timer0 interrupt flag
- Preload TMR0 with 10 (this ensures that a Timer0 interrupt will occur before
- Enable Global Interrupts on the PIC16F690.
TRISA2 as an output.
reference of Comparator 1.
increments every 256th clock pulse.
the Timer1 registers overflow).
REF
Configuration:
OSC
/4 as the Timer0 clock source.
REF
REF
MAIN() SOFTWARE CONTROL LOOP FLOWCHART FOR
COMPARATOR LAB 3
Loop Forever
to route the 0.6V fixed voltage reference to the non-inverting
output to the non-inverting reference input.
Initialize()
main()
Wait
© 2009 Microchip Technology Inc.