MYD-LMA35 Development Board

The MYD-LMA35 Development Board is an advanced evaluation platform specifically designed for the Nuvoton MA35D16A887C/MA35D16AJ87C processors. These processor boast up to 800MHz Dual ARM Cortex-A35 cores and a 180MHz Cortex-M4 core, belonging to the esteemed NuMicro® MA35D1 family. The board is ready to run the Linux or Debian Operating System and supports an industrial-grade operating temperature range from -40 to +85 degrees Celsius.

The MYD-LMA35 Development Board is built around the MYC-LMA35 System-On-Module (SOM) and has explored many features of the NuMicro® MA35D1 SoC through the 252-pin LGA expansion interface of the SOM to its base board. This board operates on a 12V/2A DC power supply and boasts a rich set of peripherals, including 6x RS232, 6x RS485, 2x USB 2.0 Host, 1x USB 2.0 OTG, 2x Gigabit Ethernet, 4x CAN, a Micro SD card slot, and an integrated WiFi/Bluetooth module. Additionally, it incorporates an M.2 Socket for USB-based 4G/5G LTE Modules, along with two SIM card holders. The board also offers an RGB display interface, a Parallel CSI interface, and an audio interface. Furthermore, the 30-pin extension interface provides access to additional resources such as GPIO, UART, SPI, and PWM, enabling users to customize and enhance their development endeavors.

Top-view of MYD-LMA35 Development Board (delivered with a pre-installed heatsink by default)

Bottom-view of MYD-LMA35 Development Board

The MYD-LMA35 Development Board is delivered with a Quick Start Guide, one USB to TTL cable and one 12V/2A power adapter. MYIR also offers MY-LCD70TP-C LCD Module as add-on option for the board.

The MYD-LMA35 Development Board is capable of running Linux 5.10 or Debian 12 Operating System, ensuring a stable and efficient performance. MYIR provides abundant software resources, including kernel and driver source code, as well as detailed documentations and tools that facilitate rapid and easy development for users. These resources provide the necessary support to developers, enabling them to focus on creating innovative and exciting applications.

Features

Mechanical Parameters

• Dimensions: 110mm x 150mm (base board), 37mm x 39mm (SOM)
• PCB Layers: 6-layer design (base board), 10-layer design (SOM)
• Power supply: 12V/2A (base board), 5V/1A (SOM)
• Working temperature: -40~85 Celsius (industrial grade)
  (WiFi/BT Module: -20~70 Celsius)
  

The MYD-LMA35 Controller Board (MYC-LMA35)

MYC-LMA35 Top-view and Bottom-view

Processor

• Allwinner T527 processorNuvoton NuMicro® MA35D1 Processor (MA35D16A887C/MA35D16AJ87C)
  

  - Dual Arm Cortex-A35 cores running up to 800 MHz
  - Arm Cortex-M4 processor core running up to 180 MHz
  - On-chip SRAM 384 KB (Cortex-A35 256 KB + Cortex-M4 128 KB)
  - DDR3L (MA35D16A887C with 256MB, MA35D16AJ87C with 512MB)
  - 2D Graphic Engine (GFX), LCD display controller with the resolution up to 1080p@60 FPS
  - H.264 Video Decoder and JPEG Image Decoder

Storage

• 256MB Nand Flash / 8GB eMMC

• 32Kbit EEPROM

Peripherals and Signals Routed to Pins

• 252-pin LGA expansion interface
  - 2x RGMII
  - 2x USB2.0 Host
  - 1x SDIO3.0
  - 17x UART
  - 4x CAN FD
  - 6x I2C
  - 2x I2S
  - 18x ePWM
  - 4x SPI
  - 8x EADC
  - 1x JTAG
  - 1x RGB
  - 2x Parallel CSI
  - Up to 190x 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 SOM pin-out description file.

The MYD-LMA35 Development Board Base Board

• 1x Power Jack
• 1x Power Switch
• Serial ports
  - 6x RS232
  - 6x RS485 (with isolation)
  - 3x Debug Interface (one for Cortex-A35 core, one for Cortex-M4 core, one for SWD)
• USB
  - 2x USB 2.0 Host
  - 1x USB 2.0 OTG
  - 1x M.2 socket for USB based 4G/5G LTE Module
• 2x SIM Card Slots
• 2x 10/100/1000 Mbps Ethernet Interfaces
  
• 4x CAN Interfaces (with isolation)
• 1x ADC Interface
• 2x Digital Input (DI) ports
• 2x Digital Output (DO) ports
• 1x Micro SD card slot
• WiFi/Bluetooth Module (complies with IEEE 802.11 a/b/g/n/ac standard and supports Bluetooth V5.0)
• 1x Parallel CSI Interface
  
• 1x RGB Display interface
  Supports MYIR’s MY-LCD70TP-C LCD Module with Capacitive Touch Screen through the LCD interface
  
• Audio: 1x 3.5mm Headphone/Mic Jack
• 1x Expansion header (GPIO/UART/SPI/PWM)
• 3x Buttons (one for Reset, one for On/Off and one for USER)

OS Support

• Linux 5.10
• Debian 12