Microchip Technology MRF24J40MB PICtail/PICtail Plus AC164134-2 AC164134-2 ユーザーズマニュアル

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AC164134-2
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MRF24J40MA/MB PICtail™/PICtail
PLUS DAUGHTER BOARD
USER’S GUIDE
 2009 Microchip Technology Inc.
DS51867A-page 15
Chapter 2.  Getting Started
2.1
INTRODUCTION
The MRF24J40MA/MB PICtail/PICtail Plus Daughter Board can be plugged into multi-
ple Microchip Technology demonstration and development boards. This allows the 
developer to choose the microcontroller that best suits the customer’s development 
environment.
The PICtail connector right angle header, P2, can plug into 8-bit demonstration and 
development boards, such as the PIC18 Explorer Board (DM183032). The PICtail Plus 
card edge connector, P1, can plug into Explorer 16 Development Board (DM240001).
This chapter shows how the daughter board is plugged into the PIC18 Explorer and 
Explorer 16 Development Boards.
2.2
PLUGGING INTO THE PIC18 EXPLORER BOARD
The MRF24J40MA/MB PICtail/PICtail Plus Daughter Board can be plugged into the 
PIC18 Explorer Board PICtail connector, J3, as shown in Figure 2-1. Make sure to align 
pin 1 to RE2 as shown.
2.2.1
Configuring Push Button Switch S2 to RB2/INT2
On the PIC18 Explorer Board, push button switch S2 is normally connected to I/O port 
pin RA5. RA5 is not a change on interrupt or external interrupt capable I/O pin. Jum-
pering JP3 with a shunt allows the connection of RA5 to RB2/INT2 to allow push button 
switch S2 to trigger an interrupt. Keep in mind that RB2 also connects to pin 10 (input) 
of U6 (RS232 level shifter) which is a Clear-to-Send (CTS) signal on P2 pin 8 (DE9 
receptacle).
CAUTION
Ensure that the PIC18F87J11 PIM is plugged into the PIC18 Explorer Board. This 
sets the system V
DD
 voltage to 3.3 volts, which is required by the MRF24J40MA/MB 
PICtail/PICtail Plus Daughter Board.