MCP3421EV 查看數據表（PDF） - Microchip Technology
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MCP3421EV Datasheet PDF : 34 Pages
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Quick Start Instructions
1.3.2.2 SAVING THE SCRIPT FILE AND PROGRAMMING THE
CONFIGURATION REGISTER
1. Change the 2nd and 3rd data bytes you want in the Script Detail.
2. Type in any script name (i.e., MCP3421_Write) in the space below the Script
Name menu.
3. Click the Save Script button.
4. Click the Execute Script button.
Note: At this point, the PICkit Serial transmits the I2C Write Command to the
MCP3421 device. The saved file name will appear in Users I2C Scripts
column and can be re-used any time by selecting the file name.
5. You can also see the SCL and SDA waveforms using the oscilloscope.
Note:
When you click on the “Execute Script” menu, the “Busy” LED on the PICkit
Serial Analyzer will momentarily turn on and then turn off. If the LED
remains ON, a communications problem has occurred. Remove the PICkit
Serial Analyzer from your computer and re-check the parameter values
including the order of parameters under the “Script Detail” column. Try
again until the “Busy” LED goes OFF immediately after executing the write
command.
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Write Command with Address bits
FIGURE 1-12:
I2C Write Command Waveforms for the MCP3421.
Configuration Bits
© 2009 Microchip Technology Inc.
DS51793A-page 17
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