Complete the following steps to initialize this reference design module:

1. Select IWRL6432AOP Sense-on-Power (SOP) mode, by using SW1 on the design module. Table 3-1 provides a description of the SOP modes. A "0" represents pulling the pin low and a "1" represents pulling the pin high. The switch SW1 position right represents "0" and left represents "1".
   Table 3-1 SOP0 Mode

   MODE	SOP0	MODE DESCRIPTION
   1	0	Flashing mode: The host flashes the user application or firmware to Quad Serial Peripheral Interface (QSPI) flash
   2	1	Functional mode: IWRL6432AOP loads the user application from QSPI flash to the internal RAM and runs the application from RAM. User configuration is sent to the device over the UART interface.

2. Set the SOP mode to flashing mode (see Figure 3-1).
   
   

   

   
   Figure 3-1 Set up the SOP to Flashing Mode
3. Connect the design module to a PC. Use a USB cable to connect the micro receptacle USB connector (J2) on the design module and the USB connector of the PC.

The IWRL6432AOP radar sensor on the design module is ready for programming.

TI provides the Code Composer Studio™ software for firmware programming and debugging. See also the Code Composer Studio™ integrated development environment (IDE) user guide to get the CCSTUDIO software.

The UNIFLASH software can also be used to flash the IWRL6432AOP.

TI also provides a mmWave Software Development Kit (SDK) to flash a binary file to IWRL6432AOP. See the mmWave-L-SDK tool page to get this SDK.

Use the following steps to flash the IWRL6432AOP image file by using mmWave SDK:

1. Open the visualizer software in the SDK. Visualizer is found in the folder where the SDK is installed: Root directory:

   \MMWAVE_L_SDK installed directory\tools\visualizer

2. Select the Flash tab and enter the UART port number manually. Select the Enter key on the PC.
   
   

   

   
   Figure 3-2 Select UART Port
3. Select XWRL6432AOP in the Device Select section. Click the Enter key on the PC.
   
   

   

   
   Figure 3-3 Device Select
4. Select the SWITCH SETTINGS CONFIRMED button in the Board Switch Settings section. Click the Enter key on the PC.
   
   

   

   
   Figure 3-4 Board Switch Settings
   Note: The image refers to the IWRL6432AOP EVM switch setting. Ignore switch settings in this design.

1. Select the Custom Image icon.
2. Click the Upload button. Select the

   motion_and_presence_detetion_demo_aop.release.appimage

   file, which is generated with the last build in the image file steps. Obtain this file from the project folder, that is;

   SDK installed 
   directory\examples\mmw_demo\motion_and_presence_detection\prebuilt_binaries\xwrL64xx-aop

3. Click the Flash button and flash the image to IWRL6432AOP.

Figure 3-5 Image Flash

After the IWRL6432AOP programming completes, unplug the USB cable to power off the radar module and switch SW1 to the Function mode.

Use the following steps to flash the IWRL6432AOP image file by using UniFlash:

1. Open the UniFlash software
2. Select mmWave from the Category header
3. Select IWRL6432 from the field of available devices
4. Click the Start button.
   Figure 3-6 UniFlash Configuration for IWRL6432AOP
5. Under Flash Image(s), click the green Browse button by Meta Image 1
6. Select the

   motion_and_presence_detetion_demo_aop.release.appimage

   file, which is generated with the last build in the image file steps. Obtain this file from the project folder, that is;

   SDK installed 
   directory\examples\mmw_demo\motion_and_presence_detection\prebuilt_binaries\xwrL64xx-aop

   Figure 3-7 UniFlash Software Load Image for IWRL6432AOP
7. Under Quick Settings, input the COMxx manually. The "xx" is the UART port number shown in the system manager program on the PC, which connects to the USB-to-UART converter on this design module.
   
   

   

   
   Figure 3-8 UniFlash Software Quick Settings
8. Click the Load Image Button and flash the image to IWRL6432AOP.

After the IWRL6432AOP programming completes, unplug the USB cable to power off the radar module and switch SW1 to the Function mode.