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Get started with STM32MP135 based SBC


Remove the SBC from box and place above the ESD free area. Use anti-static pad/mat with proper grounding to place the SBC. Also make sure that, below deliverables are received without any physical damage.

The SBC kit contains:

  • STM32MP135 based SBC
  • 12V, 2A Power Supply
  • Safety guidelines
  • UART Debug cable *
Safety Guidelines
STM32P135 SBC Top


STM32MP135 based SBC

1.2-12V, Power Supply

12V, Power Supply

* Optional

UART Debug cable*

Get to know

STM32MP135_OSM_SoM_Top view
STM32MP135_OSM_SoM_Bottom view

STM32MP13x OSM based SOM – Top view

STM32MP13x OSM based SOM– Bottom view

2.STM32MP135 MPU.


STM32MP135_SBC_Top view

STM32MP135 OSM based SBC– Top view

1.Power IN Jack
2. Dual USB 3.0 Conn.**
3.RTC Conn.
4. Ethernet Conn.
5.Power button.

6. USB OTG Conn.
7. LVDS Disp. Conn.**
8. Boot selection switch
9. USB Header
10. Debug UART Conn.

11.Camera Conn.**
12.OSM SOM Size SF.
13.Micro HDMI** .
14.Fan header.
15. Power ON/OFF Switch.


STM32MP135 OSM based SBC– Bottom view


16.Expansion conn – 1.
17. 18 bit RGB Display conn.
18. Expansion conn – 3.

**Not supported

19. Reset Button.
20. Expansion conn – 2.
21. Micro SD Slot.

Boot Switch Setting

Make sure On-Board Switch (SW2) is set properly as shown below image.

Boot Selection Switch.

SW1-Boot Selection Switch.
Table 1: Boot Media Switch Settings

Switch Table for STM32MP135

Note:- The 4th bit of SW2 should always be high for enabling OTG.

Debug Port Setting

Connect Type A end of TTL-232R-RPI cable to PC and 3pin (100mil) Berg House end of TTL-232R-RPI cable to Debug UART Header (J5) as shown below.

Debug for STM32MP135

Use one of the terminal application depending on the operating system
of the host machine:

Powering ON

Connect the 12V power supply plug to the power connector (J3) of the iW-RainboW-G54S-STM32MP135 based SBC as shown below and switch ON the power supply.
Once power is applied to the SBC, the LEDs in the iW-RainboW-G54S-STM32MP135 based SBC will glow as shown in the image below.

STM32MP135 of Power ON


  • Do not try to connect any other Power Supply other than supplied along with iW-RainboW-G54S-STM32MP135 based SBC.
  • Contact iWave, if power LEDs are not glowing.

Boot screen

User must go through “Software User Guide” and get familiar with software section of iW-RainboW-G54S-STM32MP135 SBC.

Operating System Support.

Linux for STM32P135

Power is applied to the SBC & Once the boot get success, depending upon the supported Operating systems and boot loader on particular delivery, boot messages being prompted in the terminal window as shown below. Press Enter key in terminal and done with test environment setup on particular delivery.

Command Prompt (Linux)

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