The MYD-YA157C development board consists of a compact CPU Module MYC-YA157C and a base board to provide a complete evaluation platform for ST STM32MP1 Processors which features dual-core Arm Cortex-A7 operating at up to 650 MHz and an embedded Cortex-M4 core operating at up to 209 MHz. Typical applications are industrial control, consumer electronics, smart home, medical and more other energy-efficient applications which require rich performance and low power.
 

The MYD-YA157C has a base board which installed MYC-YA157C CPU Module through 1.0mm pitch 164-pin stamp-hole (Castellated-Hole) interface. The MYC-YA157C CPU Module is a highly-integrated SoM which combines the STM32MP157 processor (STM32MP157AAC3), 512MB DDR3, 4GB eMMC as well as an integrated GigE PHY chip. The base board has brought out rich peripherals through connectors and headers such as RS232, RS485, USB Type-C DRP, USB2.0 HOST, Gigabit Ethernet, WiFi/Bluetooth, CAN, Micro SD Card Slot, JTAG, RGB888 based LCD/HDMI, MIPI-DSI, etc.

The MYD-YA157C is running Linux OS. MYIR provides abundant software resources for Yocto 2.6 based MYIR MEasy-HMI system, Yocto 2.6 based ST Weston system, Yocto 2.6 based MYIR MEasy-IOT system and Ubuntu 18.04 system including kernel and driver source code, STM32CubeProgrammer and STM32CubeMX tools to enable users to start their development rapidly and easily.

MYD-YA157C Development Board Top-view

MYD-YA157C Development Board Bottom-view

The MYD-YA157C development board is delivered with one Quick Start Guide, one Type-C cable, one USB to TTL serial cable and one WiFi/Bluetooth antenna to provide user a complete platform for evaluating and prototyping based on STM32MP1 series microprocessors. MYIR also offers MY-CAM002U Camera Module and MY-TFT070CV2 LCD Module as options for the board.

Features

Mechanical Parameters

• Dimensions: 110mm x 80mm (base board), 45mm x 43mm (CPU Module)
• PCB Layers: 4-layer design (base board) or USB Typpower supply, 8-ayer design (CPU Module)
• Power supply: +12V/1.5A (base board) or USB Type-C power supply, 5V/0.5A (CPU Module)
• Working temperature: 0~70 Celsius (commercial grade) or -40~85 Celsius (industrial grade)
  (WiFi/BT Module: -30~85 Celsius)
  

The MYD-YA157C Controller Board (MYC-YA157C CPU Module)

MYC-YA157C CPU Module

Processor

• STMicroelectronics STM32MP157AAC3 Microprocessor
  - Up to 650MHz dual-core Arm Cortex-A7 32-bit RISC core
  - Up to 209MHz Arm Cortex-M4 32-bit RISC core with FPU/MPU
  - Integrated 3D GPU
  

Memory

• 512MB DDR3 (supports up to 1GB DDR3)
• 4GB eMMC Flash (supports up to 64GB eMMC)
• Nand Flash (alternative design with eMMC, supporting 256MB / 512MB /1GB Nand Flash)

Peripherals and Signals Routed to Pins

• One 10/100/1000M Ethernet PHY
• 1.0mm pitch 164-pin stamp hole expansion interface
  - 8 x Serial ports
  - 6 x I2C
  - 6 x SPI
  - 1 x SAI
  - 1 x USB 2.0 Host and 1 x USB 2.0 OTG
  - 2 x SDIO
  - 2 x CAN
  - 1 x MIPI-DSI
  - 1 x Digital Camera Interface (DCMI)
  - 1 x RGB Interface (supports RGB888, resolution up to 1366 x 768 @60fps)
  - Up to 97 x GPIOs
  Note: the peripheral signals brought out to the expansion interface are listed in maximum number. Some signals are reused. Please refer to the processor datasheet and pin-out description file.

The MYD-YA157C Development Board Base Board

• Serial ports
- Debug serial port (TTL)
- 1 x RS232
- 1 x RS485 (isolated power signal)

• USB
  - 1 x USB2.0 Host ports
  - 1 x USB Type-C DRP
• 1 x 10/100/1000 Mbps Ethernet interface (RJ45)
• 1 x CAN (isolated power signal)
  
• 1 x JTAG interface (2.0mm pitch 2 x 5-pin headers)
• WiFi/Bluetooth Module (complies with IEEE 802.11 b/g/n standard and supports Bluetooth V4.2)
• 1 x external antenna connector (for WiFi/Bluetooth)
• 1 x TF card slot
• RGB888 based LCD/HDMI (supports resolution up to 1366 x 768 pixels at 60Hz)
• 1 x MIPI-DSI Display Interface (supports resolution up to 1366 x 768 pixels at 60Hz)
• 3 x Buttons (one for RESET, one for Wake up and one for USER)
• 1 x 2.0mm 2*10-pin male expansion header

OS Support

• Linux 4.19.94

Hardware Specification The MYC-YA157C CPU Module is using STMicroelectronics STM32MP157AAC3 Microprocessor with 12 x 12 mm, 0.5 mm pitch, TFBGA361 package which is among the STM32MP1 Series. The STM32MP1 series is based on a heterogeneous single or dual Arm Cortex-A7 and Cortex-M4 cores architecture, strengthening its ability to support multiple and flexible applications, achieving the best performance and power figures at any time. The Cortex-A7 core provides access to open-source operating systems (Linux/Android) while the Cortex-M4 core leverages the STM32 MCU ecosystem. It is available in 3 different lines which are pin-to-pin compatible: STM32MP157: Dual Cortex-A7 cores @ 650 MHz, Cortex-M4 core @ 209 MHz, 3D GPU, DSI display interface and CAN FD STM32MP153: Dual Cortex-A7 cores @ 650 MHz, Cortex-M4 core @ 209 MHz and CAN FD STM32MP151: Single Cortex-A7 core @ 650 MHz, Cortex-M4 core @ 209 MHz Each line comes with a security option (cryptography & secure boot)   STM32MP1 Series Processsors STM32MP157 Block Diagram   MYC-YA157C CPU Module Function Block Diagram MYD-YA157C-V2 block diagram MYC-YA157C CPU Module Dimension Chart MYD-YA157C Dimension Chart

Software Features

The MYD-YA157C runs Linux OS and is provided with software packages. Based on Linux 4.19.94 kernel, MYIR has provided abundant software resources for Yocto 2.6 based MYIR MEasy-HMI system (available later), Yocto 2.6 based ST Weston system, Yocto 2.6 based MYIR MEasy-IOT system and Ubuntu 18.04 system including kernel and driver source code, STM32CubeProgrammer and STM32CubeMX tools to enable users to start their development rapidly and easily.

 

Item	Features	Description	Source Code
Bootstrap program	TF-a-2.0	Arm Trusted Firmware	YES
Bootloader	U-boot-2018.11	Kernel bootstrap	YES
Linux kernel	Linux-4.19.94	Customized based on ST kernel_4.19.94 version for MYD-YA157C	YES
Drivers	Nand Flash	Nand Flash driver	YES
	USB Host	USB Host driver	YES
	USB OTG	USB OTG driver	YES
	I2C	I2C driver	YES
	SPI	SPI driver	YES
	TTY	TTY Serial port driver	YES
	Ethernet	10M/100M/1000M Ethernet driver	YES
	MMC	eMMC/TF card driver	YES
	LCD	LCD driver, supports MYIR’s 7-inch LCD with 800 x 480 pixels resolution	YES
	HDMI	HDMI driver	YES
	Touch	Capacitive touch screen driver	YES
	PWM	PWM driver	YES
	RTC	RTC driver	YES
	GPIO	GPIO driver	YES
	CAN	FDCAN Bus driver	YES
	RS485	RS485 driver	YES
	RS232	RS232 driver	YES
	MIPI	MIPI display driver	YES
	Camera	USB Camera driver (OV2659)	YES
	ADC	ADC driver	YES
	WiFi & BT	AP6212 WiFi/BT driver (SDIO)	YES
	Watchdog	Watchdog driver	YES
File system	rootfs	Yocto 2.6 for ST Weston system	YES
	rootfs	MEasy HMI demo system developed by MYIR	YES
	rootfs	MEasy-IOT demo system developed by MYIR	YES
	Ubuntu core system	Based on ubuntu18.04	YES
Tool	SDK	arm-ostl-linux-gnueabi 8.2.0	BIN
	Yocto2.6	System construction tool	YES
	STM32CubeProgrammer	ST programmer software	BIN
	Win32DiskImager	Creating SD card boot tool	BIN
	SDCardUpdater	Creating production burning tool	YES
Applications	GPIO LED	LED example	YES
	GPIO KEY	KEY example	YES
	NET	TCP/IP Socket C/S example	YES
	RTC	RTC example	YES
	RS232	RS232 example	YES
	RS485	RS485 example	YES
	CAN	CAN example	YES
	LCD	LCD Display example	YES
	Camera	Camera Display example	YES
	stm32cube_fw_mp1	M4 core testing example	YES
IDE	STM32CubeIDE	ST Integrated Development Environment	BIN

 

MYD-YA157C Software Features

MEasy-HMI System Structure

MEasy-IOT System Structure

Relative Download and Links You can download relative chip datasheet, products datasheet, user manual, software package from below. Detailed technical data are available on request.   1 MYC-YA157C CPU Module Overview 1.54 MB 2 ST STM32MP157A Datasheet 3.32 MB 3 MYC-YA157C Pinouts Description 43 KB 4 MYD-YA157C Development Board Overview 2.18 MB