DM163035 Microchip Technology, DM163035 Datasheet - Page 66

• Manufacturer Part Number: DM163035
• Description: KIT DEVELOPMENT PICDEM LAB
• Manufacturer: Microchip Technology
• Type: MCUr

Specifications of DM163035

• Contents: Board, Cable, Components, CD, PICkit Programmer
• Processor To Be Evaluated: PIC10F, PIC12F615, PIC16F616
• Data Bus Width: 8 bit
• Operating Supply Voltage: 1.3 V to 5 V
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC10, PIC12, PIC16
• Silicon Core Number: PIC10F, PIC12F, PIC16F
• Silicon Family Name: PIC10F2xx, PIC12F6xx, PIC16F6xx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC10F206, PIC16F690, PIC16F819
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PICDEM
DS41369A-page 62
TM
4.2.4
4.2.4.1
To configure the peripherals used in this lab, the following registers are used:
1. Comparator C1 Control Register 0: CM1CON0 (Register 8-1 in Section 8 of the
4.2.4.2
In this lab, Comparator 1 on the PIC16F690 is configured to perform a simple compare.
A potentiometer connected to the inverting input (C12IN0-) of the comparator will be
compared against the 2.5V connected to the non-inverting input (C1IN+) from a simple
voltage divider circuit. An LED connected to the output of Comparator 1 (C1OUT) will
light or turn off as follows:
• inverting reference > non-inverting reference = C1OUT is low = LED OFF
• inverting reference < non-inverting reference = C1OUT is high = LED ON
The PICDEM™ Development Board configuration schematic is shown in Figure 4-1.
FIGURE 4-1:
The software flowchart for this lab is shown in Figure 4-2.
Lab Development Board User’s Guide
- Enables Comparator C1.
- Configures Comparator output polarity.
- Enables the Comparator result to be available internal only or on the C1OUT
- Select inverting and non-inverting Comparator 1 reference input sources.
PIC16F690 Data Sheet)
pin (pin 17).
J8
Lab 1: Simple Compare
NEW REGISTERS USED IN THIS LAB
OVERVIEW
10
1
2
3
4
5
6
7
8
9
U2
C12IN0-
C1OUT
SCHEMATIC FOR COMPARATOR LAB 1
C1IN+
20
19
18
17
16
15
14
13
12
11
J9
LED1
V
R4
470Ω
SS
V
DD
V
R1
10KΩ
R2
10KΩ
SS
© 2009 Microchip Technology Inc.
V
DD
V
R3
100KΩ
SS