BeagleConnect Zepto

Overview

BeagleConnect Zepto is a low-cost microcontroller development board from BeagleBoard.org based on the Texas Instruments MSPM0L1117 microcontroller. The board is designed for embedded development with Zephyr RTOS and provides a compact platform featuring expansion through mikroBUS-compatible add-on modules and QWIIC connectors.

The MSPM0L1117 features an Arm Cortex-M0+ CPU running at up to 32 MHz, 128 KB of on-chip flash memory, and 16 KB of SRAM.

Hardware

BeagleConnect Zepto provides the following hardware features:

  • Texas Instruments MSPM0L1117 Arm Cortex-M0+ MCU

  • 128 KB Flash memory

  • 16 KB SRAM

  • mikroBUS-compatible expansion connector

  • 12 non-mikroBUS pins for additional capabilities

  • Two QWIIC expansion connectors

  • RGB LED

  • Blue user LED

  • UART connectivity through an external USB-to-UART adapter

  • Raspberry Pi or BeagleY-AI HAT compatible connector.

Supported Features

The beagleconnect_zepto board supports the hardware features listed below.

on-chip / on-board
Feature integrated in the SoC / present on the board.
2 / 2
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

Flashing

Build the Hello World sample:

# From the root of the zephyr repository
west build -b beagleconnect_zepto/mspm0l1117 samples/hello_world

This builds the program and the binary is present in the build/zephyr directory as zephyr.bin.

If BeagleConnect Zepto is connected over I2C or UART, we flash this binary using BeagleBoard Imaging Utility. The Raspberry Pi and BeagleY-AI HAT compatible connector can be used to flash from those boards without needing extra wires.

Alternatively, when an XDS110 debug probe is connected to the SWD interface, the application can be flashed directly using:

west build -b beagleconnect_zepto/mspm0l1117
west flash

Debugging

The board supports XDS110 over SWD for debugging.

west build -b beagleconnect_zepto/mspm0l1117
west debug

References