TIDUFC3 January   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Power Topology
      2. 2.2.2 PCB and Form Factor
      3. 2.2.3 Antenna
    3. 2.3 Highlighted Products
      1. 2.3.1 AWRL6432BGAMFQ1
      2. 2.3.2 TCAN3404DDFRQ1
      3. 2.3.3 TPS65036x-Q1
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Getting Started With Hardware
        1. 3.1.1.1 Power Up Option
      2. 3.1.2 Sense-on-Power (SOP)
      3. 3.1.3 AWRL6432 Initialization: Board Programming
    2. 3.2 Test Setup
    3. 3.3 Test Results
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 Layout Prints
      4. 4.1.4 Altium Project
      5. 4.1.5 Gerber Files
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

3.1.2 Sense-on-Power (SOP)

The AWRL6432 device has three different boot mode (SOP mode) configurations, Application mode (Functional mode), Device management mode [Quad Serial Peripheral Interface (QSPI) flashing mode], and Debug mode (Development mode). Exercise the SOP mode configurations in Table 3-1 first. After the correct SOP mode is set, an nRESET must be issued to register the SOP setting.

Connector pins J1.8 and J1.7 are dedicated for SOP0 and SOP1, respectively. By default, SOP0 is pulled high and SOP1 is pulled low in the reference design. Therefore, the device boots up in Application (Functional) mode when J1.8 and J1.7 are not connected externally. Connect J1.8 to GND to switch the device to Device management mode (QSPI flashing mode). Similarly, connect the J1.7 to VCC_3V3 to switch the device to Debug Mode (Development mode).

Table 3-1 Different SOP Modes
SOP MODE PMIC_CLK_OUT, TDO COMBINATION (SOP1, SOP0) CONNECTION REQUIRED FOR SOP1 CONNECTION REQUIRED FOR SOP0
SOP_MODE1 Device management mode (QSPI flashing mode) 00 NC GND
SOP_MODE2 Application mode (Functional mode) 01 NC NC
SOP_MODE4 Debug Mode (Development mode) 11 VCC_3V3 NC