参数资料
型号: EVAL-ADUC847QSZ
厂商: Analog Devices Inc
文件页数: 12/16页
文件大小: 0K
描述: KIT DEV QUICK START FOR ADUC847
产品培训模块: Process Control
标准包装: 1
系列: QuickStart™ 套件
类型: MCU
适用于相关产品: ADuC847
所含物品: 评估板、电源、缆线、软件和说明文档
产品目录页面: 739 (CN2011-ZH PDF)
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UG-041
THE ADuC WASP
The Windows analog software program (WASP) is a general
application for all MicroConverter products that allows analysis
of the analog performance of these parts. The WASP recognizes
which MicroConverter the PC is communicating with before
automatically downloading the appropriate code.
Σ
This section serves as a tutorial to introduce both the SAR
WASP (for SAR ADC parts ADuC812 , ADuC814 , ADuC831 ,
ADuC832 , ADuC841 , ADuC842 , and ADuC843 ) and the
Σ-Δ WASP (for ? -Δ ADC parts ADuC816 , ADuC824 , ADuC834 ,
ADuC836 , ADuC845 , ADuC847 , and ADuC848 ). The terms
SAR WASP and Σ-Δ WASP relate to the same WASP software.
The software differentiates between the different products.
After downloading the appropriate code, the WASP launches an
acquisition window. This allows the user to configure, control,
and analyze the ADC noise performance with the various
analog and digital peripherals enabled/disabled.
1. Power up the evaluation board using the 9 V power supply.
Connect the evaluation board to the COM1 serial port of
your PC using the RS-232 dongle cable connected to the
4-way header, J4.
2. Place the MicroConverter into serial download mode as
section.
Evaluation Kit User Guide
Clicking Next bypasses the download sequence and can be used
if the WASP code is already downloaded and running on the
MicroConverter. To identify the MicroConverter for the WASP
software, select the appropriate MicroConverter from the
MicroConverter Select option box and click Next .
SAR WASP
An acquisition window (see Figure 18) opens for any of the SAR
ADC MicroConverter products ( ADuC812 , ADuC814 , ADuC831 ,
ADuC832 , ADuC841 , ADuC842 , and ADuC843 ).
From this acquisition window, you can
? Select the channel for converting
? Set up the ADC conversion time and sampling parameters
? Select the number of samples to acquire
? Set up voltages on the DAC channels
? Select the use of the internal reference or an external
reference device
? Enable/disable various analog/digital peripherals
Figure 18 shows an example for converting on the temperature
sensor using the internal reference as displayed. Using the
example parameters shown, click Run . The acquired ADC
samples appear on the chart as shown in the bottom portion of
the window for the ADuC812 .
3.
4.
From the Start menu, choose Programs > ADuC > WASP .
This launches the WASP application. The WASP executable
file, WASP.exe, is located at C:\ADuC\WASP\WASP.exe .
Click Download . The ADuC8xx window appears and the
code starts to download. A task bar indicates the download
progression. A message appears when the file is downloaded.
The program automatically runs when the download is
complete.
Figure 18. SAR Acquisition Window
When all the samples are collected, the WASP immediately opens
the ADC Noise Analysis window. The ADC Codes Histogram
and the ADC Data Analysis sections within this window provide
Figure 17. WASP Window
a measure of the code distribution for the ADC input.
Rev. B | Page 12 of 16
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