.. zephyr:board:: max32670evkit

Overview

The MAX32670 evaluation kit (EV kit) provides a platform for evaluation capabilities of the MAX32670. The MAX32670 is an ultra-low-power, cost-effective, highly reliable 32-bit microcontroller that enables designs with complex sensor processing without compromising battery life. It combines a flexible and versatile power management unit with the powerful Arm® Cortex®-M4 core with floating point unit (FPU). The MAX32670 also offers legacy designs an easy and cost optimal upgradepath from 8-bit or 16-bit microcontrollers.

The Zephyr port is running on the MAX32670 MCU.

Hardware

MAX32670 MCU:
- High-Efficiency Microcontroller for Low-Power, High-Reliability Devices
  - Arm Cortex-M4 Core with FPU up to 100MHz
  - 384KB Flash Memory with Error Correction
  - 160KB SRAM (128KB with ECC Enabled),Optionally Preserved in Lowest Power Modes
  - 16KB Unified Cache with ECC
  - UART Bootloader
    - Dual- or Single-Supply Operation
    - Ultra-Low 0.9V to 1.1V VCORE Supply Voltage
    - Internal LDO Operation from 1.7V to 3.6V SingleSupply
  - Wide Operating Temperature: -40 °C to +105 °C
- Flexible Clocking Schemes
  - Internal High-Speed 100MHz Oscillator
  - Internal Low-Power 7.3728MHz and Ultra-Low-Power 80kHz Oscillators
  - 16MHz to 32MHz Oscillator (External CrystalRequired)
  - 32.768kHz Oscillator (External Crystal Required)
  - External Clock Input for the Core
  - External Clock Input for the LPUART and LPTMR
- Power Management Maximizes Uptime for Battery Applications
  - 44μA/MHz Active at 0.9V up to 12MHz
  - 50μA/MHz Active at 1.1V up to 100MHz
  - 2.6μA Full Memory Retention Power in BACKUPMode at VDD = 1.8V
  - 350nA Ultra-Low-Power RTC at VDD = 1.8V
  - Wake from LPUART or LPTMR
- Optimal Peripheral Mix Provides Platform Scalability
  - Up to 31 General-Purpose I/O Pins
  - Up to Three SPI Master/Slave (up to 50MHz)
  - Up to Three 4-Wire UART
  - One Low-Power UART (LPUART)
  - Up to Three I2C Master/Slave 3.4Mbps High Speed
  - 8-Channel Standard DMA Controller
  - Up to Four 32-Bit Timers (TMR)
  - Up to Two Low-Power 32-Bit Timers (LPTMR)
  - Two Windowed Watchdog Timers
  - One I2S Slave for Digital Audio Interface
- Security and Integrity
  - Available Secure Boot
  - AES 128/192/256 Hardware Acceleration Engine
  - 32-Bit CRC Acceleration Engine
Benefits and Features of MAX32670EVKIT:
- USB 2.0 Micro B to Serial UART Bridge
- UART0 and UART3 Interface is Selectable Through On-Board Jumpers
- On-Board MAX32625PICO-Based Debugger
- Boot Load Enable Circuitry
- SPI and I2C Signals Accessed Through 0.1in Headers
- GPIOs and Miscellaneous Signals Accessed Through 0.1in Headers
- Board Power Provided by USB Port
- On-Board SIMO Regulator and LDO for IC and Peripherals
- Individual Power Measurement on all IC Rails Through Jumpers
- Two General-Purpose LED and One GeneralPurpose Pushbutton Switch

Supported Features

.. zephyr:board-supported-hw::

Connections and IOs

+-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | Name | Name | Settings | Description | +===========+===============+===============+==================================================================================================+ | JP1 | P0_22 | | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Open | | | Disconnects red LED from P0_22. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Close | | | Connects red to P0_22. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | JP2 | P0_23 | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Open | | | Disconnects green LED from P0_23. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Close | | | Connects green LED to P0_23. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | JP3 | P0_20 | +-----------+ | +-------------------------------------------------------------------------------+ | | | P0_26 | | 2-1 | | | Connects the USB to serial port P0_8 (UART0_RX). | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | 2-3 | | | Connects the USB to serial port P0_26 (LPUART0_RX). | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | JP4 | P0_9 | +-----------+ | +-------------------------------------------------------------------------------+ | | | P0_27 | | 2-1 | | | Connects the USB to serial port P0_9 (UART0_TX). | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | 2-3 | | | Connects the USB to serial port P0_27 (LPUART0_TX). | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | JP5 | VDD | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Open | | | Disconnects power to VDD. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Close | | | Connects power to VDD. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | JP6 | VCORE | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Open | | | Disconnects power to VCORE. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | Close | | | Connects power to VCORE. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+ | JP7 | SIMO RSEL2 | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | 1-2 | | | Sets output 2 of the SIMO regulator to 0.9V. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | 3-4 | | | Sets output 2 of the SIMO regulator to 1.0V. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | 5-6 | | | Sets output 2 of the SIMO regulator to 1.1V. | | | | | +-----------+ | +-------------------------------------------------------------------------------+ | | | | | | +-----------+---------------+---------------+--------------------------------------------------------------------------------------------------+

Programming and Debugging

.. zephyr:board-supported-runners::

Flashing

The MAX32670 EVKIT integrates a MAX32625PICO based debugger for DAPLink functionality.

Once the debug probe is connected to your host computer, then you can simply run the west flash command to write a firmware image into flash. To perform a full erase, pass the --erase option when executing west flash.

Debugging

Please refer to the Flashing_ section and run the west debug command instead of west flash.

References

MAX32670EVKIT web page_

.. _MAX32670EVKIT web page: https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/max32670evkit.html