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参数资料
| 型号： | DV164039 |
| 厂商： | Microchip Technology |
| 文件页数： | 35/64页 |
| 文件大小： | 0K |
| 描述： | KIT DEV PIC24FJ256DA210 |
| 产品培训模块： | Intro to PIC24FJDA Family |
| 视频文件： | PIC24FJ256DA210 Development Board Overview |
| 标准包装： | 1 |
| 系列： | dsPIC™ |
| 类型： | MCU |
| 适用于相关产品： | PIC24FJ256DA210 |
| 所含物品： | 开发板，显示板，3 个裸板，MPLAB ICD-3，线缆，电源 |
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Development Board Hardware
Due to pin constraints, some features of the development board overlap more than oth-
ers. In these cases, configuring the board for one major functionality means limiting or
disabling another. Table 4-2 shows the major areas of overlap. Additional details are
provided in the following sections.
TABLE 4-2:
SUMMARY OF BOARD CONFIGURATIONS VS. AVAILABILITY
OF SPECIFIC FEATURES
Board Configuration Options
Individual Feature
No CTMU
CTMU
USB OTG
PICtail? Plus Options
Flash and SRAM
access modes
Parallel Flash/
SPI Flash Memory
SRAM
Resistive Touchscreen
Byte and
Word
512 Kbytes/
2 Mbit
512 Kbytes
Y
Byte and
Word
512 Kbytes/
2 Mbit
512 Kbytes
Y
Byte and
Word
512 Kbytes/
2 Mbit
512 Kbytes
Y
Word only (1)
256 Kbytes/N.A.
256 Kbytes
Y
OR Touch SPI channel
Potentiometer
Touch pads (CTMU)
User-defined Buttons
User-defined LEDs
UART Channels
USB Modes
Y
N
Y
N
1
Host or
N
Y (2)
N
Y (3)
1
Host or
N
N
N
N
1
OTG only
Y
N
Y (2)
1
1
Host or Device
Device
Device
PICtail Plus Expansion
N
Y (3)
N
Y
Note 1:
2:
3:
4.4.1
The only display mode available in this configuration is 16 bpp.
CTMU channels and push buttons are available with certain PICtail? Daughter
Boards only. The number of inputs available depends on the daughter board and
Connector” for additional information.
LED outputs are shared with CTMU input channels.
User-Defined Inputs and LEDs
The PIC24FJ256DA210 Development Board implements a variety of user-defined
inputs: push button switches, capacitance-sensing touch pads, a potentiometer, and
four LEDs. The development board multiplexes the switches, touch sensors, potenti-
ometer and three of the LEDs through three I/O pins (RB5, RE9 and RG8). For each of
these pins, only one input mode can be chosen at any given time. The fourth LED (D4)
shares a pin with an address line for the external memory devices.
Note that the implementation of shared inputs and outputs used in the development
board is not a recommended design practice. In this case, it is implemented in consid-
eration of I/O pin constraints. Using separate pins for different input and output features
is always recommended.
If the CTMU touch sensors are enabled, the LEDs can be used simultaneously. How-
ever, care must be taken in the application to switch the I/O pins alternately as analog
input and digital output as required. Please refer to the “ PIC24FJ256DA210 Family
Data Sheet” (DS39969) for details on configuring the I/O ports.
The user-defined features are configured using jumpers J13, J14 and J15. In some
cases, modifications to accompanying resistors are also required. The locations of the
components are shown in Figure 4-3. A summary of the jumper settings is provided in
? 2010 Microchip Technology Inc.
DS51911A-page 35
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