MCP4728 datasheet(29/50 Pages) MICROCHIP

29 / 50 page

Quick Start Instructions

DS51837A-page 25

1.3.2.11

SAVE THE SCRIPT FILE AND PROGRAMMING THE MCP4728 DAC

REGISTERS

Type in any script name (i.e., MCP4728_W_SingEE) in the space below the

Script Name menu.

Click Save Script button.

Click Execute Script button.

You can also see the SCL and SDA waveforms using the Oscilloscope.

Read the VOUT voltage at the VOUT test pins:

Since the UDAC bit is set to “0” in the command, the device will update the channel A

(VOUT A) output as soon as the command is executed regardless of the condition of the

LDAC pin switch S1.

Note:

At this point, the PICkit Serial transmits the I2C Write Command to the

MCP4728 device. The saved file name will appear in Users I2C Scripts

column, and can be re-used any time by selecting the file name.

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 recheck the parameter values

including the order of parameters under the “Script Detail” column including

the I2C address of the device, and try again until the “Busy” LED turns OFF

immediately after sending the I2C command.

MCP4728 Datasheet(PDF) 29 Page - Microchip Technology