i.MX ProcessorsのトピックRe: lwip recvfrom in interrupt handler

lwip recvfrom in interrupt handler

Maurizio2 — Fri, 20 Jun 2025 11:23:31 GMT

Is it possibile use lwip_recvfrom inside the interrupt handler? In my application I use FreeRtos and LWIp. The recvfrom is in non blocking mode but the function not return (the Queue inside LWIP are xQueueReceive without FromISR).

Is there a lwip_recvfrom for interrupt handler?

Thanks very much.

Re: lwip recvfrom in interrupt handler

Chavira — Fri, 20 Jun 2025 14:28:21 GMT

HI @Maurizio2!

To better assist you, could you please provide the following information?

What SDK version you are currently using?

What device or board you are working with?

Looking forward to your response.

Best regards!
Chavira

Re: lwip recvfrom in interrupt handler

Maurizio2 — Sat, 21 Jun 2025 19:26:06 GMT

I use iMX RT 1062. The evaluation Is iMX RT1062 OEM from embedded artist ( https://www.embeddedartists.com/products/imx-rt1062-oem/ ). The SDK Is http://imx.embeddedartists.com/imxrt/eaimxrt1062_16mb_sdk_2_15_000_2024-03-12.zip from embedded artist.

Re: lwip recvfrom in interrupt handler

Omar_Anguiano — Tue, 24 Jun 2025 17:49:50 GMT

ISRs should be short and fast. lwip_recvfrom() is relatively heavy and may cause issues on the application. I do not suggest using it inside the ISR.

Best regards,
Omar