Index — E1M-X V2N reading order and bring-up entry points

E1M Hardware E1M-X V2N
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E1M-X V2N is the Renesas RZ/V2N SoM family on the 45×65 mm E1M-X form factor.

Reading order

  1. One-pager — docs/soms/v2n.md.
  2. Bring-up — docs/bring-up-v2n.md.
  3. Reference examples — examples/v2n/v2n-gd32-bridge-ping/, examples/v2n/v2n-board-id-readout/, examples/v2n/v2n-ethernet-dual/.
  4. Renesas FSP upstream — Renesas V2N AI SDK 7.10 BSP wire-up landed in meta-alp; check CHANGELOG for the verification status.

V2N specifics worth knowing

  • All E1M PWM channels are GD32-driven on V2N; Renesas drives no PWMs.
  • GD32 in-field reflash uses SWD-from-host, not factory-ISP / BOOT0 — bit-banged from the Renesas host via P70 (SWDIO) + P71 (SWCLK). Works regardless of GD32 firmware state.
  • GD32_NRST is shared with the primary PMIC reset out — host pad MUST be configured open-drain.
  • Murata BT_DEV_WAKE is intentionally not routed on V2N; the chip driver handles NULL-pin gracefully.