stm32h743添加lwip2.02报发送错误，ping失败

发布于 2021-02-02 11:44:19 浏览：3500 订阅该版

说明：
  1. 开发板：硬石YS-H7Pro, 芯片stm32h743iit6
  2. 开发工具：win10系统，ip固定为192.168.2.201; IDE为rt-thread studio 2.0
  3. 项目配置：按芯片型号添加RT-Thread v4.02项目；board.h取消eth部分相应注释，启动lan8720驱动；stm32h7xx_hal_conf中取消HAL_ETH_MODULE_ENABLED注释；board.c中添加eth_msp初始化及phy_reset函数；rt-thread设置添加LWIP，取消DHCP，固定ip为192.168.2.100
  4. 其他：默认drvers下面的drv_eth驱动报错，从art-pi的sdk中拷贝drv_eth.c及drv_eth.h，并修改phy_reset部分；

问题：
编译下载后，网络连接状态正常，不过报DMA发送失败，双向ping不通。

```
 \ | /
- RT -     Thread Operating System
 / | \     4.0.2 build Feb  2 2021
 2006 - 2019 Copyright by rt-thread team
lwIP-2.0.2 initialized!
[I/sal.skt] Socket Abstraction Layer initialize success.
[W/drv.emac] eth transmit frame faild: 8
msh >
RT-Thread shell commands:
ifconfig         - list the information of all network interfaces
ping             - ping network host
dns              - list and set the information of dns
netstat          - list the information of TCP / IP
version          - show RT-Thread version information
list_thread      - list thread
list_sem         - list semaphore in system
list_event       - list event in system
list_mutex       - list mutex in system
list_mailbox     - list mail box in system
list_msgqueue    - list message queue in system
list_mempool     - list memory pool in system
list_timer       - list timer in system
list_device      - list device in system
exit             - return to RT-Thread shell mode.
help             - RT-Thread shell help.
ps               - List threads in the system.
free             - Show the memory usage in the system.
reboot           - Reboot System

msh >ifconfig
network interface device: e0 (Default)
MTU: 1500
MAC: 00 80 e1 17 3d 22
FLAGS: UP LINK_UP INTERNET_DOWN DHCP_DISABLE ETHARP BROADCAST IGMP
ip address: 192.168.2.100
gw address: 0.0.0.0
net mask  : 255.255.255.0
dns server #0: 0.0.0.0
dns server #1: 0.0.0.0
msh >ping 192.168.2.201
[W/drv.emac] eth transmit frame faild: 24
[W/drv.emac] eth transmit frame faild: 24
[W/drv.emac] eth transmit frame faild: 24
ping: from 192.168.2.201 icmp_seq=0 timeout
[W/drv.emac] eth transmit frame faild: 18
[W/drv.emac] eth transmit frame faild: 18
ping: from 192.168.2.201 icmp_seq=1 timeout
ping: from 192.168.2.201 icmp_seq=2 timeout
[W/drv.emac] eth transmit frame faild: 18
[W/drv.emac] eth transmit frame faild: 18
[W/drv.emac] eth transmit frame faild: 18
ping: from 192.168.2.201 icmp_seq=3 timeout
msh >[W/drv.emac] eth transmit frame faild: 18
[W/drv.emac] eth transmit frame faild: 18
[W/drv.emac] eth transmit frame faild: 18
```

![1.PNG](https://oss-club.rt-thread.org/uploads/20210202/bfb487c54baff4816b0e9c371ad088d9.png)
![2.PNG](https://oss-club.rt-thread.org/uploads/20210202/90f36718f529e255a873c67454ad0d41.png)

whj467467222 认证专家 2021-02-02

开源，分享，交流，共同进步

yrw1985 2021-02-02

这家伙很懒，什么也没写！

老师，按你说的都去设置了，还是不行。
![image.png](https://oss-club.rt-thread.org/uploads/20210202/780e3673ad71d4b54bfd4aa876cce4ff.png)

```c
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2019-04-14     whj4674672   first version
 */
#include <rtthread.h>
#include "stm32h7xx.h"
#include "board.h"

int mpu_init(void)
{
    MPU_Region_InitTypeDef MPU_InitStruct;

/* Disable the MPU */
    HAL_MPU_Disable();

/* Configure the MPU attributes as WT for AXI SRAM */
    MPU_InitStruct.Enable            = MPU_REGION_ENABLE;
    MPU_InitStruct.BaseAddress       = 0x20000000;
    MPU_InitStruct.Size              = MPU_REGION_SIZE_128KB;
    MPU_InitStruct.AccessPermission  = MPU_REGION_FULL_ACCESS;
    MPU_InitStruct.IsBufferable      = MPU_ACCESS_NOT_BUFFERABLE;
    MPU_InitStruct.IsCacheable       = MPU_ACCESS_CACHEABLE;
    MPU_InitStruct.IsShareable       = MPU_ACCESS_NOT_SHAREABLE;
    MPU_InitStruct.Number            = MPU_REGION_NUMBER0;
    MPU_InitStruct.TypeExtField      = MPU_TEX_LEVEL0;
    MPU_InitStruct.SubRegionDisable  = 0X00;
    MPU_InitStruct.DisableExec       = MPU_INSTRUCTION_ACCESS_ENABLE;

HAL_MPU_ConfigRegion(&MPU_InitStruct);

#ifdef BSP_USING_SDRAM
    /* Configure the MPU attributes as WT for SDRAM */
    MPU_InitStruct.Enable            = MPU_REGION_ENABLE;
    MPU_InitStruct.BaseAddress       = 0xC0000000;
    MPU_InitStruct.Size              = MPU_REGION_SIZE_32MB;
    MPU_InitStruct.AccessPermission  = MPU_REGION_FULL_ACCESS;
    MPU_InitStruct.IsBufferable      = MPU_ACCESS_NOT_BUFFERABLE;
    MPU_InitStruct.IsCacheable       = MPU_ACCESS_CACHEABLE;
    MPU_InitStruct.IsShareable       = MPU_ACCESS_NOT_SHAREABLE;
    MPU_InitStruct.Number            = MPU_REGION_NUMBER1;
    MPU_InitStruct.TypeExtField      = MPU_TEX_LEVEL0;
    MPU_InitStruct.SubRegionDisable  = 0x00;
    MPU_InitStruct.DisableExec       = MPU_INSTRUCTION_ACCESS_ENABLE;

HAL_MPU_ConfigRegion(&MPU_InitStruct);
#endif

#ifdef BSP_USING_ETH
    /* Configure the MPU attributes as Device not cacheable 
       for ETH DMA descriptors and RX Buffers*/
    MPU_InitStruct.Enable = MPU_REGION_ENABLE;
    MPU_InitStruct.BaseAddress = 0x30040000;
    MPU_InitStruct.Size = MPU_REGION_SIZE_32KB;
    MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
    MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
    MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
    MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
    MPU_InitStruct.Number = MPU_REGION_NUMBER2;
    MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;
    MPU_InitStruct.SubRegionDisable = 0x00;
    MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;

HAL_MPU_ConfigRegion(&MPU_InitStruct);
#endif

//    /* Configure the MPU attributes as WT for QSPI */
//    MPU_InitStruct.Enable            = MPU_REGION_ENABLE;
//    MPU_InitStruct.BaseAddress       = 0x90000000;
//    MPU_InitStruct.Size              = MPU_REGION_SIZE_8MB;
//    MPU_InitStruct.AccessPermission  = MPU_REGION_FULL_ACCESS;
//    MPU_InitStruct.IsBufferable      = MPU_ACCESS_NOT_BUFFERABLE;
//    MPU_InitStruct.IsCacheable       = MPU_ACCESS_CACHEABLE;
//    MPU_InitStruct.IsShareable       = MPU_ACCESS_NOT_SHAREABLE;
//    MPU_InitStruct.Number            = MPU_REGION_NUMBER3;
//    MPU_InitStruct.TypeExtField      = MPU_TEX_LEVEL0;
//    MPU_InitStruct.SubRegionDisable  = 0X00;
//    MPU_InitStruct.DisableExec       = MPU_INSTRUCTION_ACCESS_ENABLE;
//
//    HAL_MPU_ConfigRegion(&MPU_InitStruct);

/* Enable the MPU */
    HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);

/* Enable CACHE */
    SCB_EnableICache();
    SCB_EnableDCache();
    
    return RT_EOK;

}
INIT_BOARD_EXPORT(mpu_init);

```
![image.png](https://oss-club.rt-thread.org/uploads/20210202/d0967569f3dfa91ce80cb6f1a41909e9.png)

whj467467222 2021-02-02

开源，分享，交流，共同进步

yrw1985 2021-02-03

这家伙很懒，什么也没写！

spoor 2022-06-07

这家伙很懒，什么也没写！

LICDCD 2023-01-19

这家伙很懒，什么也没写！

sakumisu 2023-01-20

https://github.com/sakumisu

xinyz4104 2023-08-10

这家伙很懒，什么也没写！

pineyer 2024-09-20

这家伙很懒，什么也没写！

我也出现这个问题了，

```
 \ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Sep 20 2024 17:27:41
 2006 - 2022 Copyright by RT-Thread team
lwIP-2.0.3 initialized!
[I/sal.skt] Socket Abstraction Layer initialize success.
msh >ifconfig
network interface device: e0 (Default)
MTU: 1500
MAC: 00 80 e1 01 29 37
FLAGS: UP LINK_UP INTERNET_DOWN DHCP_DISABLE ETHARP BROADCAST IGMP
ip address: 10.10.0.98
gw address: 10.10.0.1
net mask  : 255.255.255.0
dns server #0: 0.0.0.0
dns server #1: 0.0.0.0
msh >ping 10.10.0.98 -t
ping: not found specified netif, using default netdev e0.
ping: from 10.10.0.98 icmp_seq=0 timeout
ping: from 10.10.0.98 icmp_seq=1 timeout
ping: from 10.10.0.98 icmp_seq=2 timeout
ping: from 10.10.0.98 icmp_seq=3 timeout
msh >ping 10.10.0.45
ping: from 10.10.0.45 icmp_seq=0 timeout
ping: from 10.10.0.45 icmp_seq=1 timeout
ping: from 10.10.0.45 icmp_seq=2 timeout
ping: from 10.10.0.45 icmp_seq=3 timeout
msh >ping 10.10.0.33
ping: from 10.10.0.33 icmp_seq=0 timeout
ping: from 10.10.0.33 icmp_seq=1 timeout
ping: from 10.10.0.33 icmp_seq=2 timeout
ping: from 10.10.0.33 icmp_seq=3 timeout
msh >
```

```
void NETMPU_Config(void)
{
    MPU_Region_InitTypeDef MPU_InitStruct;

HAL_MPU_Disable();
    MPU_InitStruct.Enable=MPU_REGION_ENABLE;
    MPU_InitStruct.BaseAddress=0x38000000;
    MPU_InitStruct.Size=MPU_REGION_SIZE_64KB;
    MPU_InitStruct.AccessPermission=MPU_REGION_FULL_ACCESS;
    MPU_InitStruct.IsBufferable=MPU_ACCESS_BUFFERABLE;
    MPU_InitStruct.IsCacheable=MPU_ACCESS_NOT_CACHEABLE;
    MPU_InitStruct.IsShareable=MPU_ACCESS_SHAREABLE;
    MPU_InitStruct.Number=MPU_REGION_NUMBER5;
    MPU_InitStruct.TypeExtField=MPU_TEX_LEVEL0;
    MPU_InitStruct.SubRegionDisable=0x00;
    MPU_InitStruct.DisableExec=MPU_INSTRUCTION_ACCESS_ENABLE;
    HAL_MPU_ConfigRegion(&MPU_InitStruct);
    HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
}
void HAL_ETH_MspInit(ETH_HandleTypeDef *heth)
{
    GPIO_InitTypeDef GPIO_Initure;

__HAL_RCC_GPIOA_CLK_ENABLE();           //开启GPIOA时钟
    __HAL_RCC_GPIOC_CLK_ENABLE();           //开启GPIOC时钟
    __HAL_RCC_GPIOB_CLK_ENABLE();           //开启GPIOG时钟

__HAL_RCC_ETH1MAC_CLK_ENABLE();         //使能ETH1 MAC时钟
    __HAL_RCC_ETH1TX_CLK_ENABLE();          //使能ETH1发送时钟
    __HAL_RCC_ETH1RX_CLK_ENABLE();          //使能ETH1接收时钟

GPIO_Initure.Pin=GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_7;
    GPIO_Initure.Mode=GPIO_MODE_AF_PP;          //推挽复用
    GPIO_Initure.Pull=GPIO_NOPULL;              //不带上下拉
    GPIO_Initure.Speed=GPIO_SPEED_FREQ_HIGH;    //高速
    GPIO_Initure.Alternate=GPIO_AF11_ETH;       //复用为ETH功能
    HAL_GPIO_Init(GPIOA,&GPIO_Initure);         //初始化

//PC1,4,5
    GPIO_Initure.Pin=GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5; //PC1,4,5
    HAL_GPIO_Init(GPIOC,&GPIO_Initure);         //初始化

//PB11,12,13
    GPIO_Initure.Pin=GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13;   //PG13,14
    HAL_GPIO_Init(GPIOB,&GPIO_Initure);         //初始化

HAL_NVIC_SetPriority(ETH_IRQn,5,0);         //网络中断优先级应该高一点
    HAL_NVIC_EnableIRQ(ETH_IRQn);

NETMPU_Config();
}
```

![存储区配置](https://oss-club.rt-thread.org/uploads/20240920/1ea0f189fcac316f0af498bdb76007d2.png)