Bento Board

Vendor: Blue Clover Devices
Bento Board (PLT demo board v3)
Program Target: Raspberry Pi RP2350B (Cortex-M33)

The Bento Board is a demo harware target for Blue Clover’s “postcard demo”: a small, self-contained example that exercises the Blue Clover hardware end-to-end:

PLT-106 runs the test plan and powers the DUT
PER-101 Test Agent facilitates the use of programming, fixture control, and software tools.
A debug probe (Flashr PER-401, or a SEGGER J-Link) programs the RP2350B over SWD
The Bento Board is the Device Under Test (DUT)

Peripherals 

Bento 2 peripherals: RP2350B MCU, ESP32-C3 RF SoC, addressable RGB LEDs (WS2812), buzzer, 5 V relay, environmental sensor (BME280), Qwiic, mikroBUS, and USB Type-C.

Repositories 

Repository	Contents
bcdevices/bento-zephyr-fw	Zephyr firmware: `app` (demo application with shell) and `blinky`; board definitions under `boards/blueclover/`
bcdevices/test-plans	Example YAML test plans, including `bento_flash_demo.yaml`
bcdevices/example-projects	Hardware design files, per-board test plans, and prebuilt images in `bento-board-2/`

To build locally (see the repository README.md for toolchain setup):

make app BOARD=bento2      # or BOARD=bento for Bento 1
make blinky BOARD=bento2
make docker                # containerized build, output in dist/

Images are written to build.<board>/rp2350b/m33/{app,blinky}/zephyr/zephyr.hex.

Verifying the image

The app image exposes a Zephyr shell over USB CDC-ACM (prompt bento:~$). Query the version with:

bento:~$ app version
bento:~$ app build-version

blinky has no shell; it logs its version once at startup (Bento blinky 0.1.0 (build <hash>)).

Program Bento Board with J-Link 

Test Station

SKU	Model No.	Model Name
SKU-20	PLT-300A	Production Line Tool
SKU-7	PER-101	Test Agent
—	J-Link Base Compact	J-Link Programmer
SUB-3	Bento Board 1	Device Under Test

Connection

Device A	Connector	Cable P/N	Connector	Device B
SKU-20	USB-A (Port 6)	TBD	USB-C (PLT port)	SKU-7
SKU-7	USB-A (Port 2)	TBD	USB-B	J-Link Base Compact
J-Link Base Compact	20-pin Header	TBD	Debug Header	SUB-3

YAML test plan

Program the RP2350B with blinky.hex. Add blinky.hex to the PLTcloud project alongside the test plan.

title: "Bento Flashing Demo"
description: "Flash RP2350B via PER-101 Test Agent and J-Link Commander"

suite:

  - title: "Defines"
    steps:
      - command: define FIRMWARE "blinky.hex"
      - command: define SBC.uart "UART2"

  - title: "Setup Programming Session"
    steps:
      - command: agentCfg PROGSBC %SBC.uart%
        with:
          - "%FIRMWARE%"

  - title: "Power DUT"
    steps:
      - command: power 3V3 on
      - command: sleepms 1500

  - title: "Program RP2350B via JLink"
    steps:
      - command: uart %SBC.uart%
        send: |
          /opt/SEGGER/JLink/JLinkExe -device RP2350_M33_0 -if SWD -speed 4000 -autoconnect 1
          r
          h
          exec SetCompareMode = 0
          loadfile /run/pltagent/mnt/%FIRMWARE%
          r
          g
          q
        extract: "Program speed: (\\d+)"
        extractKey: JLINK_RETVAL
        timeout: 5s
      - command: eval "JLINK_RETVAL != ''"
        fail: "J-Link programming failed; check UART2 logs"

teardown:
  steps:
    - command: power 3V3 off

Note

J-Link exits with 0 even when programming fails, so the plan extracts the Program speed line as the success signal instead of checking the exit code. exec SetCompareMode = 0 forces a re-flash rather than skipping unchanged sectors.

Tip

J-Link interaction can be inspected in the UART2 logs in the Test Report.

Program Bento Board with Flashr 

Test Station

SKU	Model No.	Model Name
SKU-6	PLT-106	Production Line Tool
SKU-7	PER-101	Test Agent
—	PER-401	Flashr
SUB-67	Bento Board 2	Device Under Test

Connection

Device A	Connector	Cable P/N	Connector	Device B
SKU-6	USB-A (Port 1)	TBD	USB-C (PLT port)	SKU-7
SKU-7	USB-A (Port 2)	TBD	USB	PER-401
PER-401	20-pin Header	TBD	J1 Tag-Connect	SUB-67
SKU-6	USB-A (Port 2)	TBD	USB-C	SUB-67

YAML test plan

Program the RP2350B with bento_blinky.hex. Add bento_blinky.hex to the PLTcloud project alongside the test plan.

title: "Bento Flashing Demo"
description: "Flash RP2350B via PER-101 Test Agent and Flashr"

suite:
  - title: "Defines"
    steps:
      - command: define FIRMWARE.filename "bento_blinky.hex"
      - command: define AGENT.vidpid "6666:8001"
      - command: define FIRMWARE.target "rp2350"
      - command: define DUT.vidpid "2fe3:0004"

  - title: "Setup Programming Session"
    steps:
      - command: usb detect
        id: "%AGENT.vidpid%"
        timeout: 30s
      - command: agentCfg PROGSBC UART2
        id: "%AGENT.vidpid%"
        retry: 3
        with:
          - "%FIRMWARE.filename%"
  - title: "Program RP2350B via Flashr"
    steps:
      - command: agentExec PROGSBC "flashr-flash %FIRMWARE.target% /run/pltagent/mnt/%FIRMWARE.filename%"
        timeout: 30s

Bento Board

Peripherals

Repositories

Program Bento Board with J-Link

Program Bento Board with Flashr

Peripherals 

Repositories 

Program Bento Board with J-Link 

Program Bento Board with Flashr 