SPRUIT1B May   2020  – November 2020

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Key Features
  3. 2GESI Expansion Board Overview
    1. 2.1 GESI Expansion Board Identification
    2. 2.2 GESI Expansion Board Component Identification
  4. 3GESI Expansion Board - User Setup/Configuration
    1. 3.1 GESI Infotainment Expansion Board With CP Board
      1. 3.1.1 Board Assembly Procedures
    2. 3.2 Power Requirements
    3. 3.3 EVM Reset/Interrupt Push Buttons
    4. 3.4 EVM Configuration DIP Switch
  5. 4GESI Expansion Board Hardware Architecture
    1. 4.1  GESI Expansion Board Hardware Top Level Diagram
    2. 4.2  Expansion Connectors
    3. 4.3  Board ID EEPROM
    4. 4.4  Ethernet Interface
      1. 4.4.1 RGMII Clocking Scheme
      2. 4.4.2 Ethernet Port LED Indication
    5. 4.5  PROFI BUS / RS485
    6. 4.6  LIN Interface
    7. 4.7  MCAN
    8. 4.8  MUX Selection
      1. 4.8.1 MUX – PRGx_MDIO/MDC, CPSW9G_MDIO/MDC
      2. 4.8.2 MUX – PRG1_RGMII1/PRG1_PWM
      3. 4.8.3 MUX – PRG1_PWM/MCAN
      4. 4.8.4 MUX_MC/BP_SEL
    9. 4.9  GESI LaunchPad-Booster Pack Interface
    10. 4.10 Motor Control Interface
    11. 4.11 USS/IMU Header
    12. 4.12 Test Header
  6.   A Interface Mapping
  7.   B GESI Board GPIO Mapping
  8.   C I2C Address Mapping
  9.   D Revision History

4.8.3 MUX – PRG1_PWM/MCAN

EXP_MCAN [4:7] signals of J721E SoC is connected to 1:2 mux U29 on GESI. By toggling the signal MCAN/PWM_SEL from Jacinto7 EVM CPB I2C0 GPIO expander – U126, P14, the EXP_MCAN [4:7] signals either connect to MCAN interface or to Motor Control interface. For more information, see Section B.

GUID-806EDDA4-6D57-4F23-B166-344F56DC1607-low.gifFigure 4-11 G1_PWM/MCAN Mux