Hardware
5.3
BOARD COMPONENTS
Figure 5-3 identifies the key hardware components for the starter kit.
FIGURE 5-3:
PIC24F STARTER KIT COMPONENT LAYOUT
D3
D4
D5
A2
A1
A5
A6
D1
D2
A4
D8
D9
D10
M
A3
A7
A8
D7
D6
A9
TABLE 5-1:
PIC24F STARTER KIT COMPONENT DESCRIPTIONS
Ref
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
Debug/Programmer Component
mini-B USB Receptacle (J1)
PIC18F67J50 Microcontroller (U2)
MCP1727 Voltage Regulator (U1)
Target Power LED (D4)
Low V CE Saturation PNP Transistor Switch (Q1)
Debugger/Programmer Clock Crystal (Y1)
25LC010A Serial EEPROM (U3)
V BUS and GND Test Points
System Power LED (D2)
Debug LED (D3)
Ref
A1
A2
A3
A4
A5
A6
A7
A8
A9
Application Component
PIC24F256GB106 Microcontroller (U6)
Tri-Color LED Pads (D6, D10 or D11)
OLED Display (LED1)
Capacitive Touch Pad (S1)
32.768 kHz (RTCC) Crystal (Y2)
USB A (Embedded Host) Receptacle (J4)
mini-B USB (Peripheral) Receptacle (J5)
Potentiometer (R44)
OLED Voltage Boost Cicuitry
5.3.1
Programmer/Debugger Components
The components listed here (in order of their reference tags in Figure 5-3) are the key
components of the programmer/debugger side of the starter kit:
D1. mini-B USB Receptacle (J1): Provides system power and bidirectional
communication between the host PC and starter kit.
D2. PIC18F67J50 Microcontroller (U2): Controls the programming/debugging
operations of the target PIC24FJ256GB106 microcontroller. It also provides the
12 MHz clock for the PIC24F microcontroller.
D3. MCP1727 Voltage Regulator (U1): The 3.3V linear regulator regulates the USB
unregulated voltage to 3.3 volts (with respect to V SS ) and supplies the starter kit
with system power.
D4. Target Power LED (D4): When lit, indicates that power is being supplied to the
application side of the starter kit from V BUS (either from a USB connection or from
the V BUS test point).
? 2008 Microchip Technology Inc.
DS51725A-page 29
相关PDF资料
DM240021 KIT STARTER MPLAB FOR PIC24H
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