SLAU883A March   2024  – June 2024 AMC7908

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Hardware Setup
      1. 2.1.1 Hardware Theory of Operation
      2. 2.1.2 Jumper Definitions
      3. 2.1.3 Connector Definitions
      4. 2.1.4 Test Points
    2. 2.2 Hardware Overview
      1. 2.2.1 Electrostatic Discharge Caution
      2. 2.2.2 Connecting the FTDI Digital Controller
      3. 2.2.3 SPI Configuration
      4. 2.2.4 I2C Configuration
  9. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 Software Installation
    2. 3.2 Software Overview
      1. 3.2.1 Launching the Software
      2. 3.2.2 Software Features
        1. 3.2.2.1 Low Level Configuration Page
        2. 3.2.2.2 High Level Configuration Page
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Revision History

2.2.2 Connecting the FTDI Digital Controller

To connect the FTDI digital controller on the EVM board to the PC, align and firmly connect the USB connector to the J3 connector. Verify the connection is snug; a loose connection can cause intermittent operation. A 100 mil header (J22) is available for external communication. Table 3-6 lists the J22 pin definitions. To use external communication, disconnect jumpers J17 and J18 to remove the connection to the FTDI controller. Jumpers on J19 must be removed for SPI, but can remain for I2C to select the device address. Resistors R7 and R9 can be populated for pullups for I2C. These resistors do not need to be populated for the FTDI driver.

Table 2-6 Digital Header J22 Pin Definitions
DesignatorDefinition
2AMC7908 SCL/CS
4AMC7908 SDA/SCLK
6AMC7908 A0/SDI
8AMC7908 A1/SDO
10AMC7908 DRVEN0
12AMC7908 DRVEN1
14AMC7908RESET
1, 3, 5, 7, 9, 11, 13Ground