MCP46XXEV Microchip Technology, MCP46XXEV Datasheet - Page 30

• Manufacturer Part Number: MCP46XXEV
• Description: MCP46XX Evaluation Board DEVTOOL - Analog
• Manufacturer: Microchip Technology
• Series: -r

Specifications of MCP46XXEV

• Main Purpose: Digital Potentiometer
• Embedded: No
• Utilized Ic / Part: MCP4661
• Primary Attributes: Devices Supported MCP4631, Mcp4641, Mcp4651, MCP4661
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MCP46XXEV Evaluation Board User’s Guide
2.6
DS51929A-page 30
MCP4661 DEMO STEPS
This demo assumes that you know how to configure the PICkit Serial Analyzer for
Master I
or the “PICkit Serial Analyzer User’s Guide” (DS51647) for additional information.
1. Plug the PICkit serial device into the PC’s USB port.
2. Plug the MCP46XXEV Evaluation Board into the PICkit serial.
3. Add the User Scripts (see Example 2-1) to the CommScripts.TXT file.
4. Start the PICkit serial GUI.
5. Ensure the GUI is in Master I
6. Ensure that the Master I
7. Measure the Wiper 0 voltage on the MCP46XXEV Evaluation Board (see
8. Open the Script Builder window (see Figure 2-11).
9. Double click on the “MCP4661W0WR” script in the “Example I2CM Scripts
10. Click on the Execute Script button. This executes the script shown in the Script
11. Select the “MCP4661W0RD” script in the User I2CM Scripts column. It should
12. Click on the Execute Script button. This executes the script shown in the Script
13. Double click on the “MCP4661W0WR” script in the Example I2CM Scripts
14. Click on the Execute Script button. This executes the script shown in the Script
15. Select the “MCP4661W0RD” script in the User I2CM Scripts column. It should
16. Click on the Execute Script button. This executes the script shown in the Script
17. Double click on the “MCP4661W0WR” script in the Example I2CM Scripts
18. Click on the Execute Script button. This executes the script shown in the Script
19. Select the “MCP4661W0RD” script in the User I2CM Scripts column. It should
20. Click on the Execute Script button. This executes the script shown in the Script
21. In the Transaction window, click the Clear button.
Figure 2-9).
Figure 2-2) using an oscilloscope or digital multimeter. Measure voltage from the
ground plane (GND) to the wiper (P12). The voltage on the wiper should be ~
V
column. This loads the Script Detail column (see Figure 2-13).
Detail column, which will update the wiper value to 7Fh. The wiper voltage will
now be ~V
look like Figure 2-14.
Detail column. The Transaction window (see Figure 2-17) will be updated to
indicate the execution of the script.
column. This loads the Script Detail column (see Figure 2-13). Modify the fourth
byte to FF (see Figure 2-15).
Detail column, which will update the wiper value to FFh. The wiper voltage will
now be ~V
look like Figure 2-14.
Detail column. The Transaction window (see Figure 2-17) will be updated to
indicate the execution of the script.
column. This loads the Script Detail column (see Figure 2-13). Modify the fourth
byte to 3F (see Figure 2-15).
Detail column, which will update the wiper value to 3Fh. The wiper voltage will
now be ~V
look like Figure 2-14.
Detail column. The Transaction window (see Figure 2-17) will be updated to
indicate the execution of the script.
DD
2
/2 (~2.5V).
C operation. See Section 2.5 “Configuring The PICkit™ Serial Analyzer”
DD
DD
DD
/2 (~2.5V).
/4 (~1.25V).
(~5.0V).
2
C configuration is appropriately configured (see
2
C communication mode (see Figure 2-7).
© 2010 Microchip Technology Inc.