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Re: [lwip-users] LWIP + FreeRtos + STM32 + Optimization Problem

From: Dave Nadler
Subject: Re: [lwip-users] LWIP + FreeRtos + STM32 + Optimization Problem
Date: Tue, 18 Feb 2020 15:00:12 -0500
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

You haven't said which STM32.
Different series have differing Ethernet drivers, many very buggy.
Have you reviewed: https://community.st.com/s/question/0D50X0000BOtfhnSQB/how-to-make-ethernet-and-lwip-working-on-stm32
Hope that helps!

On 2/18/2020 2:21 PM, bengofetechnik wrote:

im running the LWIP Stack on Freertos on a STM32. Evertyhing runs fine until
the optimization -o1

when turning on -o2 and higher some problems occur. At First a mailbox error
is detected with the message type "75" (0x4b) . After that only Arp packages
(0x608 , 1544) are incoming and detected, no ipv4 packets. 

So i cant use any ipv4 Features. Is this a known bug? 

Using Version 2.0.3 
/** X.x.x: Major version of the stack */
#define LWIP_VERSION_MAJOR      2
/** x.X.x: Minor version of the stack */
#define LWIP_VERSION_MINOR      0
/** x.x.X: Revision of the stack */

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