MediaTek MT3620 M4 Driver & Real-Time Application Sample Code

Current Status

• Avaiable sample code
  • FreeRTOS: GPIO / GPT / UART / SPIM / PWM / I2C / I2S / DMA / ADC / MBOX / LP(Low Power) / C++ / Arducam / Arducam+TFT_Display / Accelerometer
  • Bare Metal: GPIO / Hello World / MBOX
• Supported Azure Sphere SDK/API Version
  • SDK Version: 20.04 (Download latest version here.)
  • API Version: 5+Beta2004
• Revision History of relesae_200520
  • Azure Sphere SDK 20.04 (API version "5+Beta2004") is supported.
  • FreeRTOS and Bare Metal OS_HAL are merged.
  • FreeRTOS RTApp Toolchain cmake file is updated.
  • New sample code: Bare Metal Mailbox
  • New sample code: FreeRTOS Arducam+TFT_Display
• Known Issue
  • External interrupt is not working.
    • Caused by Azure Sphere OS firewall configuration, still under discussion/clarification.
  • SPI_Slave is not working.
    • App Manifest file does not support SPI slave, still under discussion/clarification.
  • WDT_Reset (WatchDog Timer Reset) failed to reboot correctly.
    • M4 core failed to reboot after WDT_Reset, still under discussion/clarification.

To clone this repository:

git clone https://github.com/MediaTek-Labs/mt3620_m4_software.git

Description

This repository maintains the MT3620 M4 driver and real-time application sample code, which divided into the following directories:

• MT3620_M4_BSP/
  • This folder includes the CMSIS-Core APIs and the configuration of interrupt vector table.
  • Current BSP supports Bare Metal and FreeRTOS.
• MT3620_M4_Driver/
  • The MT3620 M4 driver provides the APIs to access the peripheral interfaces, ex GPIO / SPI / I2S / I2C / UART...
  • This driver could be divided into two layers
    • Upper layer: M-HAL (MediaTek Hardware AbstractionLayer), which provides high-level API to real-time application.
    • Lower layer: HDL (Hardware Driving Layer), which handles the low-level hardware control.
• MT3620_M4_Sample_Code/
  • This is the executable CMake project sample code which utilizes the M-HAL APIs to access the peripheral interfaces.
  • Both Bare Metal and FreeRTOS sample code are included.

Please refer to the MT3620 M4 API Reference Manual for the detailed API description.

Prerequisites

• Hardware
  • AVNET MT3620 Starter Kit or Seeed MT3620 Development Kit
• Software
  • Refer to Azure Sphere software installation guide.
  • A terminal emulator (such as Telnet or PuTTY to display the output log).