Hi M3,

Thanks for reaching out Renesas Community.

We have some sample project for RA6M3 with azure rtos NETX, can you check this link if there are some projects fit your requirment:

ra-fsp-examples/example_projects/ek_ra6m3 at 294f649f1aca599b783cbbf115f7da5d88ff113d · renesas/ra-fsp-examples · GitHub

BR,

NP_Renesas

i want to do ra6m3 renesas board as tcp client through socket program for this i need example

like port :8080

ip :192.168.50.33

socket_create()

connect() 

Appendix D - Azure RTOS NetX BSD-Compatible Socket API

learn.microsoft.com/.../appendix-d

I want to do simple TCP ip socket program is this setup is correct in this my renesas ra6m3 board is client and my PC is server but in my client nx_tcp_client_socket_connect() this api return error 21 how to solve 

Hello sir,

It seems that you have also posted a similar request where you were using FreeRTOS+TCP stack and it's APIs.

https://community.renesas.com/mcu-mpu/ra/f/forum/34046/tcp-server-client-socket-programming

Could you please specify to us which stack you would like to use?

Best Regards,

IK

SERVER

#include <stdio.h>
#include <netdb.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h> // read(), write(), close()
#define MAX 80
#define PORT 8080
#define SA struct sockaddr

// Function designed for chat between client and server.
void func(int connfd)
{
char buff[MAX];
int n;
// infinite loop for chat
for (;;) {
bzero(buff, MAX);

// read the message from client and copy it in buffer
read(connfd, buff, sizeof(buff));
// print buffer which contains the client contents
printf("From client: %s\t To client : ", buff);
bzero(buff, MAX);
n = 0;
// copy server message in the buffer
while ((buff[n++] = getchar()) != '\n')
;

// and send that buffer to client
write(connfd, buff, sizeof(buff));

// if msg contains "Exit" then server exit and chat ended.
if (strncmp("exit", buff, 4) == 0) {
printf("Server Exit...\n");
break;
}
}
}

// Driver function
int main()
{
int sockfd, connfd, len;
struct sockaddr_in servaddr, cli;

// socket create and verification
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == -1) {
printf("socket creation failed...\n");
exit(0);
}
else
printf("Socket successfully created..\n");
bzero(&servaddr, sizeof(servaddr));

// assign IP, PORT
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(PORT);

// Binding newly created socket to given IP and verification
if ((bind(sockfd, (SA*)&servaddr, sizeof(servaddr))) != 0) {
printf("socket bind failed...\n");
exit(0);
}
else
printf("Socket successfully binded..\n");

// Now server is ready to listen and verification
if ((listen(sockfd, 5)) != 0) {
printf("Listen failed...\n");
exit(0);
}
else
printf("Server listening..\n");
len = sizeof(cli);

// Accept the data packet from client and verification
connfd = accept(sockfd, (SA*)&cli, &len);
if (connfd < 0) {
printf("server accept failed...\n");
exit(0);
}
else
printf("server accept the client...\n");

// Function for chatting between client and server
func(connfd);

// After chatting close the socket
close(sockfd);
}

CLIENT

#include <arpa/inet.h> // inet_addr()
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h> // bzero()
#include <sys/socket.h>
#include <unistd.h> // read(), write(), close()
#define MAX 80
#define PORT 8080
#define SA struct sockaddr
void func(int sockfd)
{
char buff[MAX];
int n;
for (;;) {
bzero(buff, sizeof(buff));
printf("Enter the string : ");
n = 0;
while ((buff[n++] = getchar()) != '\n')
;
write(sockfd, buff, sizeof(buff));
bzero(buff, sizeof(buff));
read(sockfd, buff, sizeof(buff));
printf("From Server : %s", buff);
if ((strncmp(buff, "exit", 4)) == 0) {
printf("Client Exit...\n");
break;
}
}
}

int main()
{
int sockfd, connfd;
struct sockaddr_in servaddr, cli;

// socket create and verification
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == -1) {
printf("socket creation failed...\n");
exit(0);
}
else
printf("Socket successfully created..\n");
bzero(&servaddr, sizeof(servaddr));

// assign IP, PORT
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = inet_addr("192.168.50.22");
servaddr.sin_port = htons(PORT);

// connect the client socket to server socket
if (connect(sockfd, (SA*)&servaddr, sizeof(servaddr))
!= 0) {
printf("connection with the server failed...\n");
exit(0);
}
else
printf("connected to the server..\n");

// function for chat
func(sockfd);

// close the socket
close(sockfd);
}

1.  As i have already mentioned in above code, i have to make renesas ra6m3 board as a client  and my PC as a server so that server client can communicate with each other. so my question is how to make  renesas ra6m3 board as a client would you please provide me sample code 

SERVER

#include <stdio.h>
#include <netdb.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h> // read(), write(), close()
#define MAX 80
#define PORT 8080
#define SA struct sockaddr

// Function designed for chat between client and server.
void func(int connfd)
{
char buff[MAX];
int n;
// infinite loop for chat
for (;;) {
bzero(buff, MAX);

// read the message from client and copy it in buffer
read(connfd, buff, sizeof(buff));
// print buffer which contains the client contents
printf("From client: %s\t To client : ", buff);
bzero(buff, MAX);
n = 0;
// copy server message in the buffer
while ((buff[n++] = getchar()) != '\n')
;

// and send that buffer to client
write(connfd, buff, sizeof(buff));

// if msg contains "Exit" then server exit and chat ended.
if (strncmp("exit", buff, 4) == 0) {
printf("Server Exit...\n");
break;
}
}
}

// Driver function
int main()
{
int sockfd, connfd, len;
struct sockaddr_in servaddr, cli;

// socket create and verification
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == -1) {
printf("socket creation failed...\n");
exit(0);
}
else
printf("Socket successfully created..\n");
bzero(&servaddr, sizeof(servaddr));

// assign IP, PORT
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(PORT);

// Binding newly created socket to given IP and verification
if ((bind(sockfd, (SA*)&servaddr, sizeof(servaddr))) != 0) {
printf("socket bind failed...\n");
exit(0);
}
else
printf("Socket successfully binded..\n");

// Now server is ready to listen and verification
if ((listen(sockfd, 5)) != 0) {
printf("Listen failed...\n");
exit(0);
}
else
printf("Server listening..\n");
len = sizeof(cli);

// Accept the data packet from client and verification
connfd = accept(sockfd, (SA*)&cli, &len);
if (connfd < 0) {
printf("server accept failed...\n");
exit(0);
}
else
printf("server accept the client...\n");

// Function for chatting between client and server
func(connfd);

// After chatting close the socket
close(sockfd);
}

CLIENT

#include <arpa/inet.h> // inet_addr()
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h> // bzero()
#include <sys/socket.h>
#include <unistd.h> // read(), write(), close()
#define MAX 80
#define PORT 8080
#define SA struct sockaddr
void func(int sockfd)
{
char buff[MAX];
int n;
for (;;) {
bzero(buff, sizeof(buff));
printf("Enter the string : ");
n = 0;
while ((buff[n++] = getchar()) != '\n')
;
write(sockfd, buff, sizeof(buff));
bzero(buff, sizeof(buff));
read(sockfd, buff, sizeof(buff));
printf("From Server : %s", buff);
if ((strncmp(buff, "exit", 4)) == 0) {
printf("Client Exit...\n");
break;
}
}
}

int main()
{
int sockfd, connfd;
struct sockaddr_in servaddr, cli;

// socket create and verification
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == -1) {
printf("socket creation failed...\n");
exit(0);
}
else
printf("Socket successfully created..\n");
bzero(&servaddr, sizeof(servaddr));

// assign IP, PORT
servaddr.sin_family = AF_INET;
servaddr.sin_addr.s_addr = inet_addr("192.168.50.22");
servaddr.sin_port = htons(PORT);

// connect the client socket to server socket
if (connect(sockfd, (SA*)&servaddr, sizeof(servaddr))
!= 0) {
printf("connection with the server failed...\n");
exit(0);
}
else
printf("connected to the server..\n");

// function for chat
func(sockfd);

// close the socket
close(sockfd);
}

1.  As i have already mentioned in above code, i have to make renesas ra6m3 board as a client  and my PC as a server so that server client can communicate with each other. so my question is how to make  renesas ra6m3 board as a client would you please provide me sample code