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.

References

• bcdevices/meta-bcdevices: Yocto layer for SBCs embedded in a custom PPC

• SEGGER - Downloads - J-Link / J-Trace

Example PLTcloud Projects

• Microchip Explorer 16/32

• NXP i.MX RT685 EVK

See also

• 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