User manual

MCP3423 Evaluation Board User’s Guide

1.3.4 Reading the Conversion Data using the PICkit Serial Analyzer

You can read back the conversion data with the following steps.

1.3.4.1 CREATING SCRIPT FILE TO READ CONVERSION DATA

1. Click on ReadAddrA8 in “Example I2C Scripts” column.

This will result in filling in the spaces under “Script Detail” column.

Now you can modify the parameter boxes (delete or insert) in the “Script Detail”

column with options. The list of options will appear if you right-click the mouse in

the parameter box. You can delete the parameter box or add a new one.

2. Make sure you have the “Script Detail” parameters listed in order as follows:

I2CSTART

I2CWRTBYT

I2CRDBYTNLB

I2CSTOP

Script Detail

This means there is one byte for address

Address byte with W

/R bit = 1101-1101

5 bytes to read

Note: All seven parameters above must be listed in order. The parameters above

marked with * character are not modifiable.

Address bits (A2, A1, A0) = (1,1,0) if both JP2 and JP3 are tied to V

. You

can use different address bits by rearranging the JP1 and JP2 connectors.

See MCP3423 Data Sheet for more information on address bit selections.