How to stop debug messages in lwIP?

[KKjel.1]

Hi

I have a project using lwIP, created by STM32Cube.

It works fine, but I really want to shut OFF the debug messages.

I have searched and tried a bunch of different things, but nothing seems to be able to stop it.

Example of error/debug message: "netif is not up, old style port?" failed at line 744 in C:\..."

Thanks 

[ASEHST]

Hello @KKjel.1,

Could you please verify that you don't have any debug macros enabled in the lwipopts.h file? This might be the reason for the debug messages you are seeing.

With Regards,

[KKjel.1]

There is no DEBUG macros in that file.

Here is the complete file:

/* USER CODE BEGIN Header */
/**
******************************************************************************
* File Name : lwipopts.h
* Description : This file overrides LwIP stack default configuration
* done in opt.h file.
******************************************************************************
* @attention
*
* Copyright (c) 2024 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */

/* Define to prevent recursive inclusion --------------------------------------*/
#ifndef __LWIPOPTS__H__
#define __LWIPOPTS__H__

#include "main.h"

/*-----------------------------------------------------------------------------*/
/* Current version of LwIP supported by CubeMx: 2.1.2 -*/
/*-----------------------------------------------------------------------------*/

/* Within 'USER CODE' section, code will be kept by default at each generation */
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

#ifdef __cplusplus
extern "C" {
#endif

/* STM32CubeMX Specific Parameters (not defined in opt.h) ---------------------*/
/* Parameters set in STM32CubeMX LwIP Configuration GUI -*/
/*----- WITH_RTOS enabled (Since FREERTOS is set) -----*/
#define WITH_RTOS 1
/*----- CHECKSUM_BY_HARDWARE enabled -----*/
#define CHECKSUM_BY_HARDWARE 1
/*-----------------------------------------------------------------------------*/

/* LwIP Stack Parameters (modified compared to initialization value in opt.h) -*/
/* Parameters set in STM32CubeMX LwIP Configuration GUI -*/
/*----- Value in opt.h for LWIP_DHCP: 0 -----*/
#define LWIP_DHCP 1
/*----- Default value in ETH configuration GUI in CubeMx: 1524 -----*/
#define ETH_RX_BUFFER_SIZE 1536
/*----- Default Value for LWIP_DNS: 0 ---*/
#define LWIP_DNS 1
/*----- Value in opt.h for MEM_ALIGNMENT: 1 -----*/
#define MEM_ALIGNMENT 4
/*----- Default Value for H7 devices: 0x30044000 -----*/
#define LWIP_RAM_HEAP_POINTER 0x30000200
/*----- Value supported for H7 devices: 1 -----*/
#define LWIP_SUPPORT_CUSTOM_PBUF 1
/*----- Value in opt.h for LWIP_ETHERNET: LWIP_ARP || PPPOE_SUPPORT -*/
#define LWIP_ETHERNET 1
/*----- Value in opt.h for LWIP_DNS_SECURE: (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) -*/
#define LWIP_DNS_SECURE 7
/*----- Value in opt.h for TCP_SND_QUEUELEN: (4*TCP_SND_BUF + (TCP_MSS - 1))/TCP_MSS -----*/
#define TCP_SND_QUEUELEN 9
/*----- Value in opt.h for TCP_SNDLOWAT: LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) -*/
#define TCP_SNDLOWAT 1071
/*----- Value in opt.h for TCP_SNDQUEUELOWAT: LWIP_MAX(TCP_SND_QUEUELEN)/2, 5) -*/
#define TCP_SNDQUEUELOWAT 5
/*----- Value in opt.h for TCP_WND_UPDATE_THRESHOLD: LWIP_MIN(TCP_WND/4, TCP_MSS*4) -----*/
#define TCP_WND_UPDATE_THRESHOLD 536
/*----- Value in opt.h for LWIP_NETIF_LINK_CALLBACK: 0 -----*/
#define LWIP_NETIF_LINK_CALLBACK 1
/*----- Value in opt.h for TCPIP_THREAD_STACKSIZE: 0 -----*/
#define TCPIP_THREAD_STACKSIZE 1024
/*----- Value in opt.h for TCPIP_THREAD_PRIO: 1 -----*/
#define TCPIP_THREAD_PRIO 24
/*----- Value in opt.h for TCPIP_MBOX_SIZE: 0 -----*/
#define TCPIP_MBOX_SIZE 6
/*----- Value in opt.h for SLIPIF_THREAD_STACKSIZE: 0 -----*/
#define SLIPIF_THREAD_STACKSIZE 1024
/*----- Value in opt.h for SLIPIF_THREAD_PRIO: 1 -----*/
#define SLIPIF_THREAD_PRIO 3
/*----- Value in opt.h for DEFAULT_THREAD_STACKSIZE: 0 -----*/
#define DEFAULT_THREAD_STACKSIZE 1024
/*----- Value in opt.h for DEFAULT_THREAD_PRIO: 1 -----*/
#define DEFAULT_THREAD_PRIO 3
/*----- Value in opt.h for DEFAULT_UDP_RECVMBOX_SIZE: 0 -----*/
#define DEFAULT_UDP_RECVMBOX_SIZE 6
/*----- Value in opt.h for DEFAULT_TCP_RECVMBOX_SIZE: 0 -----*/
#define DEFAULT_TCP_RECVMBOX_SIZE 6
/*----- Value in opt.h for DEFAULT_ACCEPTMBOX_SIZE: 0 -----*/
#define DEFAULT_ACCEPTMBOX_SIZE 6
/*----- Value in opt.h for RECV_BUFSIZE_DEFAULT: INT_MAX -----*/
#define RECV_BUFSIZE_DEFAULT 2000000000
/*----- Value in opt.h for LWIP_STATS: 1 -----*/
#define LWIP_STATS 0
/*----- Value in opt.h for CHECKSUM_GEN_IP: 1 -----*/
#define CHECKSUM_GEN_IP 0
/*----- Value in opt.h for CHECKSUM_GEN_UDP: 1 -----*/
#define CHECKSUM_GEN_UDP 0
/*----- Value in opt.h for CHECKSUM_GEN_TCP: 1 -----*/
#define CHECKSUM_GEN_TCP 0
/*----- Value in opt.h for CHECKSUM_GEN_ICMP6: 1 -----*/
#define CHECKSUM_GEN_ICMP6 0
/*----- Value in opt.h for CHECKSUM_CHECK_IP: 1 -----*/
#define CHECKSUM_CHECK_IP 0
/*----- Value in opt.h for CHECKSUM_CHECK_UDP: 1 -----*/
#define CHECKSUM_CHECK_UDP 0
/*----- Value in opt.h for CHECKSUM_CHECK_TCP: 1 -----*/
#define CHECKSUM_CHECK_TCP 0
/*----- Value in opt.h for CHECKSUM_CHECK_ICMP6: 1 -----*/
#define CHECKSUM_CHECK_ICMP6 0
/*-----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */

#define DNS_MAX_TTL 0
#define DNS_MAX_SERVERS 3

/* USER CODE END 1 */

#ifdef __cplusplus
}
#endif
#endif /*__LWIPOPTS__H__ */

[Passerby · Accepted solution]

Add a global macro definition " LWIP_NOASSERT"

[KKjel.1]

Thanks, Passerby, nice and easy, and it works !

Kaare

[Passerby]

"netif is not up, old...." is a error message , you should pay attention to that.

Not printf does not mean that errors disappear

[KKjel.1]

Yes, I am aware of that. But the error message is because I have not attached the ethernet cable

The problem is that the debug messages is using a printf impleentation which completely destroys every timing in the application.

It can in some cases make the watchdog trigger...

So I just want to shut it down when not debugging.