Segger J-Link Software

J-Link Software

To support interaction with Segger’s J-Link Software tooling during production, an SBC can be included in the PPC.

For example, to program the EFM32 of a SiLabs EFM32WG-STK3800 Wonder Gecko Starter Kit over its built-in J-Link programmer using J-Link Commander:

Sample Test Plan

title: "Program EFM32 using Segger J-Link Commander"
suite:
 - title: Defines
   ident: TPM
   steps:
    - command: define FIRMWARE.hex "STM3800_blink.hex"
    - command: define SBC.uart "UART2"
 - title: New SBC Session
   steps:
    - command: agentCfg PROGSBC %SBC.uart%
      with:
      - "%FIRMWARE.hex%"
 - title: "Program EFM32 with J-Link Commander"
   steps:
    - command: uart %SBC.uart%
      send: |
        /opt/SEGGER/JLink/JLinkExe -device EFM32WG990F256; echo prog:$?:DONE
        eoe 1
        si 1
        speed 4000
        r
        erase
        loadfile %FIRMWARE.hex%
        verify
        r
        q
      extract: "prog:(\\d+):DONE"
      extractKey: RETVAL
      timeout: 2m
    - command: eval "RETVAL == '0'"
      fail: 'J-Link Commander error; check UART logs'

Tip

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

Example PLTcloud Projects

• Microchip Explorer 16/32

• NXP i.MX RT685 EVK

See also

• Accessories > Pogo-Pin Cassette > AgentOS SBC Images : ppc-sbc-test-image

J-Link Commander Preparation

Use the following test plan to prepare an SBC with an AgentOS SD Card image with J-Link Commander.

Files:

• JLink_Linux_V854_arm64.deb: J-Link Software and Documentation Pack, .deb archive for ARM64 (download from Segger: SEGGER - Downloads - J-Link / J-Trace )

title: "PLTAgent: Install J-Link Commander"
suite:
 - ident: SBC
   title: "SBC Setup"
   retry: 2
   steps:
    - command: sleepms 500
    - command: agentCfg SBC UART2
      with:
       - JLink_Linux_V854_arm64.deb
 - ident: JLINK.INST
   title: "Install J-Link Software and Documentation bundle"
   steps:
    - command: agentExec SBC "sudo bash"
    - command: agentExec SBC "mount -o remount,rw /"
    - command: agentExec SBC "dpkg-deb -x /run/pltagent/mnt/JLink_Linux_V854_arm64.deb /"
      timeout: 10s
    - command: agentExec SBC "mount -o remount,ro /"
      timeout: 30s
 - ident: JLINK.VER
   title: "J-Link version check"
   steps:
    - command: uart UART2
      send: |
        /opt/SEGGER/JLink/JLinkExe
        q
      extract: "J-Link Commander V([0-9.]+)"
      extractKey: JLINK_VERSION

See also

• Segger Flasher Software

• Nordic nRF Command Line Tools

• Program Targets > Silicon Labs > SiLabs EFM32/EFR32

• Example Projects > SBC-powered PPC

• Peripherals > Programmers > Segger J-Link

• Test Plan Reference > Test Commands :

  • agentCfg - Configure Agent

  • uart - Send and Extract UART response