参数资料
| 型号： | DM300004-2 |
| 厂商： | Microchip Technology |
| 文件页数： | 49/114页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO DSPICDEM.NET 2 |
| 标准包装： | 1 |
| 系列： | dsPIC™ |
| 类型： | 微控制器 |
| 适用于相关产品： | CTR-21 PSTN，以太网 NIC |
| 所含物品： | 板，线缆，CD，电源 |
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Quick Start Program
3.7
3.8
INTERACTING WITH THE CODE
With the program running you can interact with the peripherals on the dsPICDEM.net
board and observe the results on the LCD.
1. Depress S1 .
The LCD displays the message: Off_Hook mode.
In this mode, the dsPIC commands the Si3021 DAA/AFE to go off-hook and
seize the line (i.e., the typical routine for a modem to connect to the PSTN). For
this demonstration the dsPIC transmits a single tone to the AFE via the Data
Converter Interface module on the dsPIC device. After the off-hook routine is
completed the LCD reverts to the routine that displays the values of RP1 and
RP2. The tone continues to be generated and can be heard until switch S2 is
depressed.
2. Depress S2 .
The LCD displays the message: Ready... On_Hook .
For this routine, the dsPIC commands the Si3021 DAA/AFE to go on-hook (i.e.,
the typical condition when a modem releases the telephone line). For this
demonstration the dsPIC terminates the data transfer from the Data Converter
Interface to the Si3021 AFE. After the on-hook routine is completed the LCD
reverts to the routine that displays the values of RP1 and RP2.
3. Depress S3 .
The LCD displays the temperature as measure by sensor U2 followed by the
Ready... On_Hook message and then reverts to the RP1 and RP2 readings.
4. Touch U2 (located just left of the LCD) for a few seconds, then depress S3 again.
Notice the changed value of the temperature sensor.
5. Adjust RP1 and/or RP2.
Notice the changed value(s).
QUICK START DEMONSTRATION FEATURES AND PERIPHERALS
The intent of the Quick Start demonstration is to give you hands-on experience with the
dsPIC30F processor and peripheral features. At this point, you can examine the
program ( main.c ) and/or individual code modules in MPLAB IDE. You can set
breakpoints to examine specific activities. Or you can step through the code modules
one instruction at a time.
3.8.1
dsPIC30F Peripheral Features
The Quick Start demonstration program initializes and controls these dsPIC30F
peripherals and associated board functions:
? Timer1 – Configured as a 16-bit timer with 1:1 prescaler used as toggle rate for
LED1.
? Timer2 – Configured as 16-bit timer with a 1:1 prescaler used as toggle rate for
LED2.
? Timer3 – Configured as 16-bit timer with a 1:1 prescaler used as toggle rate for
LED3.
? UART1 TX – Used to transmit demonstration data to the PC for display.
? SPI? 1 – Used to communicate to the MCP42050 Dual Channel Digital
potentiometer.
? 12-bit ADC – Used to convert multiple analog signals, such as potentiometer and
temperature values (TC1047A temperature sensor).
? 2004 Microchip Technology Inc.
DS51471A-page 45
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| DM300014 | 功能描述:开发板和工具包 - PIC / DSPIC dsPICDEM 1.1 GP RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
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| DM300016 | 功能描述:开发板和工具包 - PIC / DSPIC dsPICDEM Starter RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
| DM300017 | 功能描述:开发板和工具包 - PIC / DSPIC dsPICDEM 28P Starter RoHS:否 制造商:Microchip Technology 产品:Starter Kits 工具用于评估:chipKIT 核心:Uno32 接口类型: 工作电源电压: |
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