topic Re: i.MX93: current source code for NPU firmware in i.MX Processors

i.MX93: current source code for NPU firmware

Niebel-TQ — Thu, 15 May 2025 16:46:39 GMT

Where can we find the source code for NPU firmware matching to current BSP releases? We need to build customized versions for our boards. The sources cannot be found in the current MCU SDK (https://github.com/nxp-mcuxpresso/mcuxsdk-manifests)

Re: i.MX93: current source code for NPU firmware

Manuel_Salas — Thu, 15 May 2025 17:21:28 GMT

Hello @Niebel-TQ

I hope you are doing very well.

You can refer to below link:

https://github.com/nxp-imx/ethos-u-firmware

Best regards,

Salas.

Re: i.MX93: current source code for NPU firmware

Niebel-TQ — Fri, 16 May 2025 07:24:49 GMT

Hello,

thank you for replying. I know this link - but we look for source code. We had this based on a very old SDK but we need to adjust to current software stack. For our own boards we need to compile the software to adjust memory layout for RPMSG etc.

Thank you

Re: i.MX93: current source code for NPU firmware

Manuel_Salas — Sat, 17 May 2025 16:34:45 GMT

Hello,

Actually, the driver source is on the SDK, for example in SDK 2.14 is under:

SDK_2_14_0_MCIMX93-EVK/middleware/ethos-u-core-software/core_driver/src/ethosu_driver.c

and

SDK_2_14_0_MCIMX93-EVK/middleware/ethos-u-core-software/core_driver/include/ethosu_driver.h

Best regards,

Salas.

Re: i.MX93: current source code for NPU firmware

brooks3333 — Sun, 18 May 2025 04:23:39 GMT

You might want to look into performance testing results when integrating the NPU firmware into real-world use cases—especially when dealing with lightweight edge devices. Also, for user-experience related benchmarks in fast-service environments, this Canes food review analysis might offer some interesting parallels in how feedback loops help optimize outcomes efficiently.

Re: i.MX93: current source code for NPU firmware

Niebel-TQ — Wed, 21 May 2025 12:45:01 GMT

Does that mean, that the github hosted SDK is still not usable? Is there a timeline for this?