Using J-Link with MIMXRT1060-EVK or MIMXRT1064-EVK

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Using J-Link with MIMXRT1060-EVK or MIMXRT1064-EVK

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Using J-Link with MIMXRT1060-EVK or MIMXRT1064-EVK

This article provides details using a J-Link debug probe with either of these EVKs.  There are two options: the onboard debug circuit can be updated with Segger J-Link firmware, or an external J-Link debug probe can be attached to the EVK.  Using the onboard debug circuit is helpful as no other debug probe is required.  However, the onboard debug circuit will no longer power the EVK when updated with the J-Link firmware.  Appnote AN13206 has more details on this, and the comparison of the firmware options for the debug circuit.  This article details the steps to use either J-Link option.

mimxrt1064_evk.jpg

 

Using external J-Link debug probe

Segger offers several J-Link probe options.  To use one of these probes with these EVKs, configure the EVK with these settings:

  • Remove jumpers J47 and J48, to disconnect the SWD signals from onboard debug circuit.  These jumpers or installed by default.
  • Use default power selection on J1 with pins 5-6 shorted.
  • Connect the J-Link probe to J21, 20-pin dual-row 0.1" header.
  • Power the EVK with one of the power supply options.  Typically USB connector J41 is used to power the board, and provides a UART/USB bridge through the onboard debug circuit.

 

Using onboard debug circuit with J-Link firmware

  • Follow Appnote AN13206 to program the J-Link firmware to the EVK
  • Install jumpers J47 and J48, to connect the SWD signals from onboard debug circuit.  These jumpers or installed by default.
  • Plug USB cable to J41.  This provides connection for J-Link debugger and UART/USB bridge.  However, with J-Link firmware, J41 no longer powers the EVK
  • Power the EVK with another source.  Here will will use another USB port.  Move the jumper on J1 to short pins 3-4 (default shorts pins 5-6)
  • Connect a 2nd USB cable to J9 to power the EVK.  The green LED next to J1 will be lit when the EVK is properly powered.
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‎05-24-2021 07:24 AM
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