Qualcomm Robotics RB5/RB6 - Boot Devices

Qualcomm Robotics RB5/RB6
Introduction
SoM Overview Why the RB5/RB6? Carrier Boards Qualcomm Robotics RB5 developer kit Qualcomm Robotics RB6 platform
Software Development Support
Boot Devices Thundercomm SDK Downloading SDK Installing SDK Generating Image and flashing Linaro Getting Started Flashing Bootloader Flashing Boot Image and Rootfs Special / Debug Modes Setting up board in EDL Mode Setting up board in Fastboot Mode
Development in the Board
Getting into the Board Using ADB Using Serial Console Using SSH Device Setup WiFi setup HDMI setup Update Ubuntu Packages
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Capture Subsystem
Hardware Capture Components Software Capture Components Building your own camera sensor driver
Image Processing and Acceleration Software
GPU Profiling Fast CV Installing Hexagon SDK Installing Fast CV Building your own Fast CV application
GStreamer Pipelines
Capture and Display Video Encoding Video Decoding
AI Acceleration
Neural Processing SDK Downloading Requirements Setup SDK Environment Install qtimlesnpe Running Inception v3 Running MobileNetV2 + SSD TensorFlow Example pipeline TensorFlow to DLC Conversion
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The boot device is the memory component from where the bootloader and the operating system keep the necessary files to successfully boot the device. The boot order is a configuration that is used by the PBL (Primary Boot Loader) firmware, which is the first software to load after powering up the platform, to search in the boot devices, in the determined order, and load the bootloader, from the device it was found, into main memory. The Qualcomm Robotics RB5 Developer kit has the following boot devices:

• UFS (Universal Flash Storage): This device is the 128GB Flash memory located in the QRB1565 SoM.
• SDC2 (Secure Digital Card 2): This device is a microSD card that is inserted into the microSD slot in the mainboard. of the Developer Kit.
• USB 3.1 Type-C: A device can be connected to the USB type-C port located in the Developer Kit's mainboard, to function as a boot device.

Figure 1: Qualcomm Robotics RB5 mainboard DIP Switch 1

Table 1: Qualcomm Robotics RB5 Developer kit - Boot Order

SW4	SW3	SW2	SW1	Boot Order
0	0	0	0	UFS > SDC2 > USB 3.1 Type-C
0	0	0	1	SDC2 > UFS > USB 3.1 Type-C
0	0	1	0	SDC2 > USB 3.1 Type-C
0	0	1	1	USB 3.1 Type-C

The Qualcomm Robotics RB5 mainboard has a boot config control DIP switch, where each combination of the switches results in a different boot order. Figure 1, shows the DIP switch where the names of each switch are indicated and the different configurations on the switch are found in Table 1.