About Ivan Pletnev

Ivan Pletnev · 2021-03-26

Hello, dear colleagues!I'm trying to build http server based on LWIP on Nucleo F429 board. An example from Cube repository works fine, also with my custom http data and paths, which I have included in example project. But, another CubeIDE generated p...

Ivan Pletnev · 2021-03-03

Hello everybody!LWIP has a possibility to assign new port number every time after reboot the device. There is define in cc.h#define LWIP_RAND() ((u32_t)rand())But it does not work properly. Every time after reboot I get same port number. For solve th...

Ivan Pletnev · 2021-01-11

Hello! I am using dark theme on STM32CubeIDE 1.5.1, and FreeRTOS debugging feature. It is a cool feature, but in dark theme FreeRTOS task list is completely unreadable. Light font on white background. What should I do to make font or background darke...

Ivan Pletnev · 2021-04-19

Hello, dear colleagues!The same problem has been detected with STM32F427. LWIP Stack doesn't work properly in STM32Cube F4 Package Version 1.26.1 with CubeMX Version 6.2.1.With STM32Cube F4 Version 1.25.2 with CubeMX 6.1.1 and 6.1.2 everything works ...

Ivan Pletnev · 2021-03-30

I don't know why, but problem is gone when I have generated project in STM32CubeMX instead of STM32CubeIDE. Now my server works perfect. Have you any ideas?

Ivan Pletnev · 2021-03-06

@voyvoda . Yes, l found tcp_port_new() function in LWIP code. Thank you a lot for your comment, It was really helpfully for me. LWIP automatic port assigning is really works. I removed randomizer code from my client.

Ivan Pletnev · 2021-03-06

This is strange a bit, but now everything works fine! With standard rand() function. I removed my randomizer code and bind() from client and everything works. Ports now assigning by LWIP properly. Thank you a lot!

Ivan Pletnev · 2021-03-04

Because you assign destination port in that structures. Local port is assigned by LWIP at boot. And it is the same for your udp and udp clients. You can assign local port to your socket only by calling bind().

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LWIP HTTP Server. Packets retransmittion.

LWIP. Is there STM32CubeMX friendly way to define LWIP_RAND?

Unreadable FreeRTOS task list on dark theme

Re: LWIP HTTP Server. Packets retransmittion.

Re: LWIP HTTP Server. Packets retransmittion.

Re: LWIP Socket API, TCP and UDP connection on the same STM32 MCU

Re: LWIP. Is there STM32CubeMX friendly way to define LWIP_RAND?

Re: LWIP Socket API, TCP and UDP connection on the same STM32 MCU