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资源说明：
This project utilizes the Texas Instruments ez430-RF2500 Wireless Development
Tool to perform wireless data logging of 6 ADC inputs at configurable sample
rates of up to 1.78kHz. The project was developed using IAR Embedded Workbench
kickstart edition version 5.20.
The wireless data logging system contains three components:
1) Wireless end device - eZ430-RF2500 board that does the data acquisition. When
triggered by the onboard button or a signal from the python data logging program,
this device will acquire data from 6 ADC inputs and store the data in flash
memory until the memory is filled. When the flash memory is full, the device will wirelessly send the data to the access point which forwards it on to the python
data logging program.
2) Wireless access point - eZ430-RF2500 board that acts as an information relay
between the wireless end device and the computer. It is plugged in to the ez430
USB adapter and communicates with the computer through a virtual serial port.
3) Python data logging program (on computer) - This program provides a graphical
interface in which you are able to view/save capture data and trigger the start
of a data acquisition sequence. Raw data can be saved to a file in comma
separated value format. This program requires python 2.7, pySerial 2.5,
matplotlib, and wxPython.
Quick tutorial on how to get the project up and running:
1) Download all the files in the git repository to your local machine.
2) Open 6ADC_toFlash_Bidirectional.eww in IAR workbench.
3) Plug in the eZ430-RF2500 USB programmer into your computer with a target board
connected.
4) In the "workspace" window of IAR, select "End Device" from the drop down
list. Then select "Make" from the "Project" menu. Download the application
into the eZ430-RF2500 by selecting Download->Download Active Application
from the the "Project" menu. Now the target board is loaded with the end
device program.
5) Unplug the end device target board from the USB programmer and replace it
with a blank eZ430-RF2500 target board. In the "workspace" window of IAR,
select "Access Point". Make the project and download the application into
the target board.
6) Exit IAR workbench.
7) Verify that you have all the pre-requisite python modules installed.
8) Run readADCvaluesWithVis_v1_4.py
9) Enter the serial port that the eZ430 USB is using.
10) Press the "Start ADC" button in the MSP430 ADC Value Plotter window and wait
for data to start appearing on the plot. The LEDs on the end device should
blink at half the sampling rate while data is being sampled.
To vary the sampling rate, adjust TACCR0 in the main_ED.c file.
// 6 = 1.78 kHz
// 8 = 1.37 kHz
// 10 = 1.12 kHz
// 12 = 943 Hz
// 14 = 819 Hz
// 16 = 735 Hz
// 18 = 653 Hz
// 19 = 621 Hz
// 20 = 591 Hz
本源码包内暂不包含可直接显示的源代码文件，请下载源码包。
