xWRL6432 MMWAVE-L-SDK  05.04.00.01
Power LPDS/Idle mode Entry and Exit

Table of Contents

Introduction

This example demonstrates usage of Radar Power Management Framework for getting into Low Power Deep Sleep(LPDS) or Idle3 states.

Supported Combinations

Parameter Value
CPU + OS m4fss0-0 freertos
Toolchain ti-arm-clang
Boards xWRL6432-evm
Example folder examples/drivers/power/power_modes

Using SDK with SysConfig

A GUI tool SysConfig is used to configure different modules and peripherals of the example. Using this tool, users can select and customize different modules and peripherals. The SysConfig tool will generate the code for initializing and configuring these modules. This configuration is saved to a file called example.syscfg for every example. To know more about how to use SDK with SysConfig, Visit this page

Using SDK with SysConfig

Steps to Run the Example

  • When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
  • When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
  • Launch a CCS debug session and run the executable, see CCS Launch, Load and Run
  • Open serial terminal (like Tera Term etc.). Example allows the user to either enter LPDS or Idle3 state via command line options.
  • LPDS: Entering '1', will make the chip to get to LPDS state for 50 seconds (time can be configured by changing the macro in example file).
  • Idle: Entering '2', will make the chip to get to Idle3 state for 25 seconds (time can be configured by changing the macro in example file).
  • LPDS wakeup:
    • LPDS wakeup after 50 seconds using Sleep Counter.
    • LPDS wakeup using SYNC_IO is supported. To use this, switch 1.6 has to be configured off. Pressing USER_SW switch (S3) will cause LDPS exit.
    • LPDS wakeup using SPI CS is supported. To use this, switch 1.6 has to be configured on. connecting SPI CS to ground will cause LPDS exit.
    • Example doesn't support wakeup using UART and RTC.
  • Idle3 wakeup: exit after 25 seconds using RTI timer interrupt mapped to WIC.

See Also

POWER

Sample Output

Shown below is a sample output when the application is run,