ra8_ethosu_shim.c File Reference

Arm ethos-u-core-driver C API shim over the ra8_npu driver (RA8P1-only). More...

#include "ra8_device.h"

Include dependency graph for ra8_ethosu_shim.c:

Go to the source code of this file.

Typedefs
typedef int	ra8_ethosu_shim_not_on_this_device_t

Detailed Description

Arm ethos-u-core-driver C API shim over the ra8_npu driver (RA8P1-only).

Tag

[Ring 3 / HAL] {World: S}

Implementation of the ra8_ethosu_shim.h contract. The whole translation unit is gated behind RA8_HAS_NPU so it compiles to nothing on the RA8D2 (which has no NPU) and is only built for the RA8P1 (-DRA8_DEVICE_RA8P1), mirroring ra8_npu.c. It touches NO hardware registers directly – every NPU access flows through the ra8_npu HAL, so this file carries no HUM / TRM citations.

The three functions provide exactly the Arm ethos-u-core-driver symbols TFLite-micro's Ethos-U operator kernel links against; see the header for how they map onto ra8_npu_init / ra8_npu_submit / ra8_npu_run / ra8_npu_wait.

Copyright

Copyright (c) 2026 Brighton Sikarskie SPDX-License-Identifier: MIT

Since

0.1.0

Definition in file ra8_ethosu_shim.c.

Typedef Documentation

ra8_ethosu_shim_not_on_this_device_t

typedef int ra8_ethosu_shim_not_on_this_device_t

Definition at line 236 of file ra8_ethosu_shim.c.