Odyssey-STM32MP157C joins τηε growing list of SBCσ developed by SeeedStudio. It comprises a baseboard device called the NPi-STM32MP157C and an SoM device based on an STMicroelectronics’ Arm Cortex A7/M4 hybrid SoC called the SOM-STM32MP157C.
SeeedStudio explains that it’s choice of the Cortex-A7 processor comes from it being a very energy efficient applications processor as it was designed to provide rich performance for high-end wearables, and other low-power embedded and consumer applications. It provides up to 20% more single-thread performance than the Cortex-A5 and provides similar performance to the Cortex-A9.
The device also embeds a Cortex -M4 32-bit RISC core operating at up to 209 MHz frequency. Cortex-M4 core features a floating-point unit (FPU) single precision which supports Arm single-precision data-processing instructions and data types. The Cortex-M4 supports a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.
It provides an external SDRAM interface supporting external memories up to 8-Gbit density (1 Gbyte), 16 or 32-bit LPDDR2/LPDDR3 or DDR3/DDR3L up to 533 MHz.
The STM32MP157C also embeds a 3D graphics processing unit (Vivante – OpenGL ES 2.0) running at up to 533 MHz, with performances up to 26 Mtriangle/s, 133 Mpixel/s