# Seeed Arch BLE

Contents

- Seeed Arch BLE

  - Hardware

  - Configuration

  - Uploading

  - Debugging

  - Frameworks

## Hardware

Platform Nordic nRF51: The Nordic nRF51 Series is a family of highly flexible, multi-protocol, system-on-chip (SoC) devices for ultra-low power wireless applications. nRF51 Series devices support a range of protocol stacks including Bluetooth Smart (previously called Bluetooth low energy), ANT and proprietary 2.4GHz protocols such as Gazell.

Microcontroller | NRF51822
Frequency | 16MHz
Flash | 128KB
RAM | 16KB
Vendor | SeeedStudio

## Configuration

Please use `seeedArchBLE` ID for board option in “platformio.ini” (Project Configuration File):

    [env:seeedArchBLE]
    platform = nordicnrf51
    board = seeedArchBLE

You can override default Seeed Arch BLE settings per build environment using `board_***` option, where `***` is a JSON object path from board manifest seeedArchBLE.json. For example, `board_build.mcu`, `board_build.f_cpu`, etc.

    [env:seeedArchBLE]
    platform = nordicnrf51
    board = seeedArchBLE

    ; change microcontroller
    board_build.mcu = nrf51822

    ; change MCU frequency
    board_build.f_cpu = 16000000L

## Uploading

Seeed Arch BLE supports the next uploading protocols:

- `blackmagic`

- `cmsis-dap`

- `jlink`

- `mbed`

- `nrfjprog`

- `stlink`

Default protocol is `cmsis-dap`

You can change upload protocol using upload_protocol option:

    [env:seeedArchBLE]
    platform = nordicnrf51
    board = seeedArchBLE

    upload_protocol = cmsis-dap

## Debugging

PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Seeed Arch BLE has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools | On-board | Default
--- | --- | ---
Black Magic Probe |  |
CMSIS-DAP | Yes | Yes
J-LINK |  |
ST-LINK |  |

## Frameworks

Name | Description
--- | ---

Mbed

The mbed framework The mbed SDK has been designed to provide enough hardware abstraction to be intuitive and concise, yet powerful enough to build complex projects. It is built on the low-level ARM CMSIS APIs, allowing you to code down to the metal if needed. In addition to RTOS, USB and Networking libraries, a cookbook of hundreds of reusable peripheral and module libraries have been built on top of the SDK by the mbed Developer Community.