TIDUEW7 May   2020

 

  1.    Description
  2.    Resources
  3.    Features
  4.    Applications
  5.    Design Images
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Processor – i.MX 6ULL Applications Processor
      2. 2.2.2 i.MX 6ULL Memory Interfaces
        1. 2.2.2.1 DDR3L
        2. 2.2.2.2 Quad SPI NOR Flash
        3. 2.2.2.3 eMMC iNAND
        4. 2.2.2.4 SD Card Connector
      3. 2.2.3 USB to UART Converter
      4. 2.2.4 USB Ports
      5. 2.2.5 LCD Screen Connector
      6. 2.2.6 JTAG Header
      7. 2.2.7 USB2ANY Header
      8. 2.2.8 Functional Switches and Status LEDs
      9. 2.2.9 GPIO Expansion Connector
    3. 2.3 Highlighted Products
      1. 2.3.1 TPS6521815 - Power Management IC
      2. 2.3.2 DP83849I - Dual Ethernet PHY
      3. 2.3.3 INA3221 - Current Monitor
      4. 2.3.4 Reset Scheme
      5. 2.3.5 TPS2054B, TPS22964C - Auxiliary Load Switches
    4. 2.4 System Design Theory
      1. 2.4.1 Power Estimation
      2. 2.4.2 Power Sequencing
      3. 2.4.3 I2C Device Chain
      4. 2.4.4 Clock Scheme
      5. 2.4.5 BOOT Configuration
      6. 2.4.6 PCB Floor Planning
  8. 3Getting Started, Testing Setup, and Test Results
    1. 3.1 Getting Started with Hardware and Software
      1. 3.1.1 Hardware
        1. 3.1.1.1 On-board LED Information
      2. 3.1.2 Software
        1. 3.1.2.1 Booting of TIDA-050043
        2. 3.1.2.2 Example Linux Commands for Testing TIDA-050043
  9. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
    3. 4.3 CAD Files
    4. 4.4 Gerber Files
    5. 4.5 Assembly Drawings
  10. 5Software Files
  11. 6Related Documentation
    1. 6.1 Trademarks
    2. 6.2 Third-Party Products Disclaimer

3.1.1.1 On-board LED Information

Table 7 lists the indicator LEDs installed on the PCB and provides a short description of their meaning to improve the user experience getting started with the TIDA-050043 reference design.

Table 7. Indicator LEDs

NUMBER(1) DESIGNATOR DESCRIPTION MEANING
1 D5 Power-On LED ON: Power-On
OFF: Power-Off
2 D4 Over-voltage LED ON: Input over-voltage (>5.25 V)
OFF: Input voltage within recommended range
3 DA8 Coin-Cell LED Blue: PMIC BU domain powered from main supply
Orange: PMIC BU domain powered from coin cell
4 DA1-DA5 USB Link LEDs Green ON: LS device attached
Red LED: FS device attached
Orange ON: HS device attached
OFF: No devices are attached, or the hub is in suspend
5 D7(2) Ethernet Link LED (Port A) ON: Ethernet link established
OFF: Ethernet link down
6 D8(2) Ethernet Link LED (Port B) ON: Ethernet link established
OFF: Ethernet link down
7 D10, D11 (COM) Debug UART TX/RX D10 blinking: Transmitting data
D11 blinking: Receiving data
8 DA6 (Red/Green), D15 User LEDs (processor status) RED ON: U-boot running
RED Blinking: Kernel running
GREEN ON: File system running
(1) Number shown in Figure 23
(2) D7 is assigned to Port A along with J3A (top port) indicator LEDs, and D8 is assigned to Port B along with J3B (bottom port indicator LEDs)