参数资料
| 型号： | DM300014 |
| 厂商： | Microchip Technology |
| 文件页数： | 37/72页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO DSPICDEM 1.1 GEN PURP |
| 标准包装： | 1 |
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Demonstration Program Operation
Each DTMF tone consists of two sinusoids: a high-frequency component and a low-
frequency component. In the DTMF tones implemented for this demonstration, the
high-frequency component is at a level 8 dB lower than the low-frequency component.
You can listen to the generated tones by using either a headset or a passive speaker
connected to the “SPKR OUT” jack (J17).
Note:
For a passive speaker, use a Radio Shack Model # 40-1434 Fold-up Stereo
Speaker System or an equivalent device.
If you connected your PC for the Data Acquisition Display demo (see Section 3.3.1.1),
you can use the <0>-<9> keys on the PC keyboard to select a DTMF tone.
To quit this demonstration and return to Menu Options, press switch SW1.
3.3.2
Demonstrated Features and Peripherals
The following two sections summarize the key dsPIC30F MCU, DSP and peripheral
features implemented in this general purpose demonstration program.
3.3.2.1
dsPIC30F MCU/DSP FEATURES
The demonstration program uses several unique dsPIC30F MCU/DSP features for
various processing functions, including:
? DSP Engine for FFT, FIR and IIR computations
- 40-bit accumulators with Saturation, Overflow and Rounding modes
- Multiply-and-Accumulate (MAC ) class of DSP instructions
? Bit-Reversed Addressing for 256-point FFT input data in preparation for the FFT
“butterfly” computations
? Modulo Addressing for accessing arrays in a circular fashion for FIR filtering
- Two modulo buffers have been implemented, one each in X and Y data
spaces.
? Hardware Loop instructions
- DO and REPEAT instructions provide minimal overhead when executing a
block of instructions repetitively.
? Program Space Visibility (PSV)
- Large tables for FIR filter coefficients, sine tables etc., are stored in and
accessed from program memory.
3.3.2.2
dsPIC30F DEMO PERIPHERALS
The demonstration program also implements several dsPIC30F peripherals for various
tasks. These peripherals include:
?
?
?
?
?
Timer1 - Configured as a 16-bit timer
Timer2 - Configured as 16-bit timer with a 256:1 prescaler
Timer3 - Configured as 16-bit timer with a 256:1 prescaler
Timer4 and Timer5 - Configured as a 32-bit timer
UART2 TX/RX - Used to transmit demo data to the PC and receive commands
from the PC keyboard
? SPI 2 - Used to communicate to the 122 x 32 Addressable-Pixel LCD via the
PIC18F242 LCD controller and MCP41010 digital potentiometer
? 12-bit ADC - Used to convert multiple analog signals, including temperature and
sinewave signals generated by the MCP41010 digital potentiometer through a
low-pass filter
? 2003 Microchip Technology Inc.
Advance Information
DS70099B-page 33
相关PDF资料 |
PDF描述 |
|---|---|
| DM300016 | BOARD DEMO DSPICDEM STARTER |
| DM300017 | BOARD DEMO DSPICDEM STARTER |
| DM300020 | BOARD DEV DSPICDEM MC1 MOTORCTRL |
| DM300021 | MODULE PWR DSPICDEM MC1H HV 3PHS |
| DM300022 | MODULE PWR DSPICDEM MC1L LV 3PHS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DM300015 | 功能描述:KIT DESIGN W/DM300014 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:* |
| 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: |
| DM300017 | 制造商:Microchip Technology Inc 功能描述:Microcontroller Development To |
| DM300018 | 功能描述:开发板和工具包 - PIC / DSPIC dsPICDEM 2 Demo Brd 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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