UDP over ethernet on STM32-nucleoh743zi2

[ArielElb]

Hi all,

Im trying to create simple udp connection over ethernet.

I found this example:
https://mongoose.ws/documentation/tutorials/udp/captive-dns-server/

But im not sure if i need to use the TCP/IP stuck or not.
Because the example above is only for "pure" UDP.

Any explaination will be great.

Thanks.

[scaprile]

Please see our documentation, and follow the guidelines in our tutorials.
https://mongoose.ws/documentation/#udp
There is no such thing as "UDP over Ethernet" nor "pure UDP". I assume you are confused about running on an OS or using other means of getting a socket interface vs. using our built-in TCP/IP stack where you don't. That is a design decision. If you don't know, go the easy way: https://mongoose.ws/wizard/

[ArielElb]

Thanks for your quick response.

When using the wizard I cant define listening to UDP connection.

I must do it manually somethink like that?
#include "mongoose.h"

// Event handler function
static void udp_handler(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
if (ev == MG_EV_READ) {
struct mg_str received = c->recv;
MG_INFO(("Received %d bytes from %M: %.*s", (int)received.len,
mg_print_ip_port, &c->rem, (int)received.len, received.ptr));
mg_iobuf_del(&c->recv, received.len); // Clear the receive buffer
}
(void)fn_data;
}

void udp_server(void *argument) {
struct mg_mgr mgr;
mg_mgr_init(&mgr); // Initialize the Mongoose event manager

// Bind to UDP port 1234
struct mg_connection *c = mg_bind(&mgr, "udp://:1234", udp_handler, NULL);
if (c == NULL) {
MG_ERROR(("Failed to bind to port 1234"));
return;
}

MG_INFO(("UDP listener started on port 1234"));

while (1) {
mg_mgr_poll(&mgr, 1); // Poll the event manager
}

mg_mgr_free(&mgr); // Free the event manager resources
(void)argument;
}