Datasheet

PIC24FJ256DA210 Development Board User’s Guide
DS51911A-page 36  2010 Microchip Technology Inc.
FIGURE 4-3: CONFIGURATION OF USER-DEFINED FEATURES
TABLE 4-3: JUMPER SETTINGS FOR RB5, RE9 AND RG8 INPUTS
4.4.1.1 USER-DEFINED PUSH BUTTONS (S1, S2 AND S3)
The development board comes with three general purpose switches, S1, S2 and S3,
for user inputs. The push button switches are normally pulled up to V
DD when
unpressed, and pulled to ground when pressed.
To enable the switches:
1. To enable switch S1 (Figure 4-3, callout 1):
a) Set jumper JP13 to bridge RG8-S1 (default).
b) Populate resistor R25 with a
0 resistor (default)
c) If installed, remove resistors R26 and R27 (not populated by default)
2. To enable switch S2 (Figure 4-3, callout 2):
a) Set jumper JP14 to bridge RE9-S2 (default)
b) Populate resistor R31 with a
0 resistor (default)
c) If installed, remove resistor R32 (not populated by default)
3. To enable switch S3 (Figure 4-3, callout 3):
a) Set jumper JP15 to bridge RB5-S3
b) Populate resistor R41 with a
0 resistor (default)
c) If installed, remove resistor R45 (not populated by default)
Jumper Configuration
Jumper
Setting
JP13 RG8 is push button S1 input (default) RG8–S1
RG8 is CTMU Pad 1 input and LED D1 output PAD1–RG8
JP14 RE9 is push button S2 input (default) RE9–S2
RE9 is CTMU Pad 2 input and LED D2 output PAD2–RE9
JP15 RB5 is push button S3 input RB5–S3
RB5 is CTMU Pad 3 input and LED D3 output PAD3–RB5
RB5 is potentiometer (R3) input (default) RB5–POT
M
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