Users Guide MCP47X6 (Microchip) - 9

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MCP47X6 PICtail™ PLUS DAUGHTER BOARD USER’S GUIDE Chapter 1. Quick Start Instructions 1.1 INTRODUCTION
The following sections provide an overview of the MCP47X6 PICtail™ Plus Daughter Board and demonstrate how to: (a) use these devices in a 16-bit MCU environment and (b) evaluate these device’s features using the PICkit™ Serial Analyzer (P/N: DV164122). The MCP47X6 PICtail™ Plus Daughter Board is designed to work with both the Explorer 16 Development Board (P/N: DV164033) and the PICkit™ Serial Analyzer (P/N: DV164122). The following topics are covered: • Description of the MCP47X6 PICtail™ Plus Daughter Board. • How to use the MCP47X6 PICtail™ Plus Daughter Board with the Explorer 16 Starter Kit. • How to use MCP47X6 PICtail™ Plus Daughter Board with the PICkit™ Serial Analyzer.
Note 1:
If you use the PIC Explorer 16, you need Sections 1.4 — 1.5 only.
2:
If you use the PICkit™ Serial Analyzer, you need Sections 1.6 — 1.8 only.
1.2 DESCRIPTION OF THE MCP47X6 PICtail™ PLUS DAUGHTER BOARD
The MCP47X6 PICtail™ Plus Daughter Board (P/N ADM00317) contains the MCP4706 (8-bit DAC), MCP4716 (10-bit DAC), and MCP4726 (12-bit DAC) devices. These DAC devices are communicating with the external Master device (MCU) using I2C serial interface communication. The MCP47X6 PICtail™ Plus Daughter Board does not include the Master device (MCU), but it has two interface connectors that can be used for the external device, which has the Master device (MCU) to communicate with this board. The two interfaces are:
(a)
Connector (J3) for Explorer 16 Starter Kit (P/N: DV164033) for 16-bit MCU environment. The firmware for the 16-bit MCU is provided with this board.
(b)
6-pin connector (J1) for PICkit™ Serial Analyzer (P/N: DV164122) for reading and writing the DAC registers using the PICkit™ Serial Analyzer PC software. The user can connect the MCP47X6 PICtail™ Plus Daughter Board to one of the above tools and perform their own experiments. These two external devices are used to control the DAC devices on the daughter board. The user can choose one of these tools to use along with the daughter board. The MCP47X6 PICtail™ Plus Daughter Board has test points for SCL and SDA, and VOUT pads for each device. By connecting an oscilloscope to these test points (to SCL, SDA, VOUT) or a digital multimeter to the VOUT pads, the user can examine the data communications through the I2C™ bus line and observe the resulting DAC output (VOUT). Refer to
Appendix A. “Schematic and Layouts” . Note:
The user can also control the DAC devices on the MCP47X6 PICtail™ Plus Daughter Board by providing I2C commands through the interface communication terminals on the daughter board, without using the Explorer 16 Development Board or the PICkitTM Serial Analyzer. © 2011 Microchip Technology Inc. DS51932B-page 9 Document Outline Trademarks Preface Document Revision History Chapter 1. Quick Start Instructions 1.1 Introduction 1.2 Description of the MCP47X6 PICtail™ Plus Daughter Board 1.3 I2C Address Byte for Each Device 1.4 Getting Started With THE Explorer 16 Development Board 1.5 Connecting to the Explorer 16 Starter Kit 1.5.1 Programming the PIC24FJ128 MCU 1.6 Getting Started with PICkit™ Serial Analyzer 1.6.1 PICkit™ Serial Analyzer PC Software Set-Up for the MCP47x6 Daughter Board 1.6.2 Creating Script Files 1.6.3 Verifying the EEPROM Data 1.6.4 Reading both the DAC Register and EEPROM data: 1.7 Examples for Other Devices (MCP4706, MCP4716) 1.8 Programming Example using the PICkit™ Serial Analyzer Appendix A. Schematic and Layouts A.1 Introduction A.2 Board – Schematic A.3 Board – Top Silk and Pads A.4 Board – Top Copper, Top Pads and Top Silk A.5 Board – Bottom Silk and Pads A.6 Board – Bottom Copper, Bottom Pads and Silk Appendix B. Bill Of Materials (BOM) Corporate Office Atlanta Boston Chicago Cleveland Fax: 216-447-0643 Dallas Detroit Indianapolis Toronto Fax: 852-2401-3431 Australia - Sydney China - Beijing China - Shanghai India - Bangalore Korea - Daegu Korea - Seoul Singapore Taiwan - Taipei Fax: 43-7242-2244-393 Denmark - Copenhagen France - Paris Germany - Munich Italy - Milan Spain - Madrid UK - Wokingham Worldwide Sales and Service Worldwide Sales and Service