SPRUII1A November   2017  – January 2020

 

  1.   Fusion Application Board
    1.     Trademarks
    2. 1 Introduction
    3. 2 Overview
      1. 2.1 Fusion Application Board
      2. 2.2 Fusion Board Features
    4. 3 Hardware
      1. 3.1  Hardware Architecture
        1. 3.1.1 Fusion Application Board With Component Identification
      2. 3.2  TDAx EVM Compatibility
      3. 3.3  Fusion Power
      4. 3.4  DS90UB960 Modes
        1. 3.4.1 Power over Coax (PoC)
      5. 3.5  I2C Addressing
        1. 3.5.1 Multiple Device Addressing (Aliasing)
        2. 3.5.2 I2C Bus Switches and Connections
      6. 3.6  EVM Interface
      7. 3.7  Sensor Connection
      8. 3.8  MSP430™ Microcontroller
      9. 3.9  Configuration Options
        1. 3.9.1 Dipswitch (S3)
        2. 3.9.2 Bank 1 Power (J27)
        3. 3.9.3 Bank 2 Power (J22)
      10. 3.10 Status LEDs
      11. 3.11 External Interfaces
    5. 4 Image Sensor Module (Optional)
      1. 4.1 OV2775 Image Sensor
      2. 4.2 DS90UB953-Q1 Serializer
    6. 5 Getting Started
      1. 5.1 Powering Up the Fusion Application Board
  2.   Revision History

3.11 External Interfaces

If an external microcontroller will be used on the Fusion board, it can be connected through J11. The design also supports an Aardvark connector to interface with compatible tools. Switch S3 position 2 must be closed to allow the external microcontroller to take over control of the I2C bus. The external microcontroller can override the GPIO on the MSP430 that turns on the USB switch. The header pin J6 breaks out to the external microcontroller, as well as J15 or J11. J15 is an Aardvark connector and J11 is a header pin. Both connect the I2C bus of the external microcontroller to the USB switch and that is how the override can be initiated. The other optional I2C hosts must be isolated before the external microcontroller can override. J6 pin 2 must be driven high by the external microcontroller to open the USB switch.