Datasheet

Flyport Wi-Fi and Ethernet Programmer's guide framework 2.3 (rev 1.0) www.openpicus.com

UDP Usage Example

Here is a basic example of the usage of UDP protocol with Flyport as the Server. As can be seen in the

example, UDP is full-duplex, but the connection with the Client is not necessary, and the UDP server

can write strings even when no client is connected.

#include "taskFlyport.h"

int serverUDPsocket;

int serverRxLength = 0;

char serverString [512];

void FlyportTask()

{

int i = 0;

// Flyport Wi-Fi // Flyport Ethernet

WFConnect(WF_DEFAULT); while(!MAClinked);

while (WFStatus != CONNECTED);

UARTWrite(1,"Flyport connected... hello world!\r\n");

// Open Server UDP connection

serverUDPsocket = UDPServerOpen("5010");

while(1)

{

// wait 0.5 sec

vTaskDelay(50);

if(!serverUDPsocket)

{

UARTWrite(1, "unable to open server UDP socket\r\n");

}

else

{

// write a string via UDP!

UDPWrite(serverUDPsocket, "Hello!\r\n", 6);

// Check Server RX length

serverRxLength = UDPRxLen(serverUDPsocket);

// Check if server received some datas

if(serverRxLength > 0)

{

UDPRead(serverUDPsocket, serverString, serverRxLength);

UARTWrite(1, serverString);

UARTWrite(1,"\r\n");

// Clear serverString buffer for the next using

for (i=0; i<serverRxLength; i++)

serverString[i] = 0;

}