J-Link SiFive Insight

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SiFive Insight is a Nexus based IP and protocol to enable tracing on their RISC-V cores. SiFive Insight is supported by J-Link and J-Trace Pro RISC-V.

Supported implementations

The following implementations are currently supported:


  • Trace encoder module + SRAM sink

J-Trace Pro RISC-V

  • Trace encoder module + SRAM sink
  • Trace encoder module + trace pin sink

Min. required version

SiFive Insight trace is supported for J-Link software version V6.65b and later for J-Link and V7.80b or later for J-Trace Pro RISC-V.

Example projects

SiFive provides a E31 bitstream for the ARTY-100T board that incorporates SiFive Insight trace.