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Eliott65Sonde

A wireless debug probe for the Eliott65 board. A Raspberry Pi Pico W, connected to the board by two wires, speaks the SWD debug protocol to its RP2040, and serves OpenOCD over Wi-Fi instead of USB. It can also work on its own: read the board's memory at a fixed interval, stop on an event, then send everything in one go.

Start with the probe for beginners See where the probe stands
  • 0 cablesbetween the PC and the probe: OpenOCD reaches it over the local network
  • 2 ports4441 for CMSIS-DAP and OpenOCD, 4442 for the local log and updates
  • 120 KiB/sread by OpenOCD at 4 MHz, measured on the board
  • 52 sfor a broken update to be replaced on its own by the old one
Eliott65Sonde: who talks to whomOn the PC, OpenOCD and the e65s.py tool reach the probe over Wi-Fi, using TCP. The probe is a Pico W: on port 4441 it serves CMSIS-DAP to OpenOCD; on port 4442, its local log and the update of its firmware. It speaks SWD to the Eliott65 board (Olimex Neo6502kbd, dual-core RP2040) over two wires, GP2 to SWCLK and GP3 to SWDIO, with a common ground.PCOpenOCDflash, debug(port 4441)e65s.py tool (port 4442)Eliott65SondeRaspberry Pi Pico W4441 · CMSIS-DAP4442 · log, OTAEliott65 boardNeo6502kbdRP2040, two coresthe targetWi-FiTCPSWDGP2, GP3, groundNo more USB cable between the PC and the probe: everything goes over the local network.The probe can also take readings on its own, then send them in batches.
The PC reaches the probe over Wi-Fi; the probe speaks SWD to the board over two wires.

Where to start

The probe serves the board of the Eliott65 project, which has its own wiki: eliott65.tachibana.eu.