Summary of OLIMEX STMP15X-SOM AND STMP1(A13)-EVB EVAL BOARD BASED ON STM32MP1 SOC
Olimex released STM32MP1-based products: the STMP15X-SOM system-on-module (pin-compatible with A13-SOM) and the STMP1(A13)-EVB eval board. The STMP15X-SOM comes in STMP151/153/157 variants with dual-core Cortex-A7 and Cortex-M4, 256/512MB DDR3L, MicroSD, AXP209 PMU with LiPo charger/UPS, ES8388 stereo codec, and several temperature grades.
Parts used in the STMP15X-SOM:
- STM32MP151/STM32MP153/STM32MP157 SoC (dual-core Arm Cortex-A7 + Cortex-M4)
- DDR3L system memory (256MB or 512MB)
- MicroSD card slot
- AXP209 Power Management Unit (PMU)
- LiPo battery charger / LiPo battery (for UPS functionality)
- ES8388 low-power stereo audio codec
- 5V DC power input
- RESET button
- Power and charge LEDs
- Boot select jumper/switch
- Serial debug header/interface
We saw several STM32MP1 SoC-based modules, SBCs, and Eval Boards Interface entering the market in 2020. These include Ka-Ro Electronics’ QSMP module, Shiratech’s Stinger96 SBC, Exor Embedded NanoSOM nS02 module, and Octavo’s OSD32MP15x SiP module harnessing the functionalities of STM32MP1.
Recently, Olimex unveiled the release of STMicroelectronics’ STM32MP1 SoC-based products, the STMP15X-SOM SoM, and the STMP1(A13)-EVB eval board. The STM32MP15X SoC features dual-core Arm Cortex-A7/M4 combined with an LCD interface, dedicated to 3D Graphics Processing Unit (GPU). Additionally, the eval board is compatible with the new STM32MP1 module and the previous A13-based SOM.
Olimex STMP15X-SOM System On Modules
The STMP15X-SOM is a system-on-module (SoM) available in industrial and extended temperature ranges. It is pin to pin compatible with the A13-SOM System On Module. The STMP15X-SOM comes in three versions with variations in the SoC models. These include STMP151-SOM, STMP153-SOM, and STMP157-SOM. The modules come with a MicroSD card slot for memory storage and 256 or 512MB DDR3L of system memory.
Discussing further, the board design comes with an onboard Power Management Unit (PMU) based on AXP209 IC. It enables the power voltage to the SoC core, peripherals, DDR3L memory, and other components to be programmable through I2C. Generally, the PMU is included in battery-operated devices such as mobile phones and portable media players to reduce the amount of space required.
Moreover, when a regular power source fails or voltage drops to an unacceptable level, the onboard LiPo battery functions as an Uninterruptible Power Supply (UPS). Thus, it provides backup power to the SoC, memory, and PMU. The STMP15X-SOM also features the ES8388, a low-power stereo audio codec, designed for portable audio devices and many more.
Specifications Of Olimex STMP15X-SOM
- STM32MP151/153/157 is a dual-core Arm Cortex-A7 running up to 650 to 800 MHz with 209 MHz Cortex-M4.
- ES8388 Stereo Audio codec to generate audio output
- The module includes a Power Management Unit (PMU) based on the AXP209 IC and a LiPo battery charger.
- It features 5V DC power, a RESET button, power and charge LEDs, boot select, and serial debug support.
- The system on modules are available in Temperature Ranges of– Commercial grade: 0 to +70°C; Extended Temp grade: -20 to +85°C; Industrial grade: -40 to +85°C
- The dimensions of the board are 60.96 x 30.48mm.
Read more: OLIMEX STMP15X-SOM AND STMP1(A13)-EVB EVAL BOARD BASED ON STM32MP1 SOC
- What SoC cores are on the STMP15X-SOM?
It uses dual-core Arm Cortex-A7 paired with a Cortex-M4 MCU. - Which STM32MP1 variants are available for the module?
The module comes in STMP151-SOM, STMP153-SOM, and STMP157-SOM variants. - How much system memory does the STMP15X-SOM provide?
The module ships with either 256MB or 512MB DDR3L system memory. - Does the module support removable storage?
Yes, it includes a MicroSD card slot for memory storage. - What power management features does the board include?
It includes an AXP209 PMU with programmable voltages via I2C and a LiPo battery charger enabling UPS functionality. - Is there onboard audio on the STMP15X-SOM?
Yes, it features an ES8388 low-power stereo audio codec for audio output. - What temperature grades are available for the SOM?
Available grades are Commercial 0 to +70°C, Extended -20 to +85°C, and Industrial -40 to +85°C. - What are the physical dimensions of the module?
The board measures 60.96 x 30.48 mm. - Is the STMP15X-SOM pin compatible with previous modules?
Yes, it is pin to pin compatible with the A13-SOM System On Module.
