Hello!
Recently I had problems with ping to my STM32 + LwIP + DP83848 + RMII. But the latest FW version 1.27.1, it works very well! But now I have problems with HTTP. Follow me and I show you how to create this bug.
First of all I'm using:
- STM32CubeIDE 1.10.1
- STM32F407VGT
- FW 1.27.1
To reproduce this bug, do the following steps.
- Step 1: Enable RMII by going to ETH -> RMII (Rx Buffer length 1524, MAC address 00:80:E1:00:00:00, Rx Mode = Interrupt, NVIC settings = Ethernet Global Interrupt)
- Step 2: Go to FREERTOS and enable CMSIS V2 and go to Task & Queues. Change the Stack Size (Words) in defaultTask from 128 to 1024.
- Step 3: Inside CMSIS V2, go to Advanced settings and set USE_NEWLIB_REENTRANT = Enabled. Leave everything else as default.
- Step 4: Go to LWIP and enable it. Set LWIP_DHCP = disabled in General Settings and then write in the fixed IP address. In my case it is 192.168.1.35.
- Step 5: Inside LWIP, go to HTTPD and set LWIP_HTTPD = enabled. Inside LWIP go to Key Options and set MEM_SIZE = 10*1024. Leave everything else as default.
- Step 6: Download the FSDATA.zip folder and extract it.
- Step 7: The FSDATA.zip folder contains a folder called FS and makeFSdata.exe. The makeFSdata.exe file will create a file called fsdata.c. Click on that.
- Step 8: When the makeFSdata.exe file have created fsdata.c then rename fsdata.c to fsdata_custom.c.
- Step 9: Place fsdata_custom.c at \Middlewares\Third_Party\LwIP\src\apps
- Step 10: Right click fsdata_custom.c -> Resource Configurations -> Extract From Build ... -> Select All -> OK.
- Step 11: Compile the project to your STM32 board and then ping.
OK! It Working great!
- Step 12: Download HTTP_Server.zip and extract it into the projects src folder.
- Step 13: Write this into your main.c file
#include "HTTP_Server/httpserver.h"- Step 14: Add http_server_init(); to
/* USER CODE BEGIN Header_StartDefaultTask */
/**
* @brief Function implementing the defaultTask thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartDefaultTask */
void StartDefaultTask(void *argument)
{
/* init code for LWIP */
MX_LWIP_Init();
/* USER CODE BEGIN 5 */
http_server_init();
/* Infinite loop */
for(;;)
{
osDelay(1);
}
/* USER CODE END 5 */
}- Step 15: Compile and go to your web browser and type in 192.168.1.35/index.html. No web site is displayed. Also if I ping now, then I get no response....BUT....if I restart the processor, then ping, the ping is working. But as long I don't go to the 192.168.1.35/index.html website, my STM32 processor have connection to the DHCP server and I can ping it.
Question:
Why does this happen?
I have followed this tutorial 100% (except that he are using another processor) https://www.youtube.com/watch?v=haO8_eLIDeI&ab_channel=ControllersTech
This must be a bug, becase in FW 1.27.0 version, I had problems with ping my processor. In FW 1.27.1, the ping works like a charm. But now FW 1.27.1 resulting that my HTTPD won't work.
Thank you.
