I'd like to make TCP/IP communication with DHCP on freeRTOS.
Hi everyone.
I would like to know how to use DHCP and check if DHCP is working what I expected.
Please, confirm my process for using TCP/IP communication with DHCP on freeRTOS.
First, I make CubeMX configuration.
Like this, I make DHCP_Module enable.
And then, I put TCP/IP echo server C code on RTOS.
Below I attach the TCP/IP echo server thread C code.
/* USER CODE END Header_tcp_echo_server */
void tcp_echo_server(void const * argument)
{
/* USER CODE BEGIN tcp_echo_server */
struct netconn *conn, *newconn;
err_t err, accept_err;
struct netbuf *buf;
void *data;
u16_t len;
LWIP_UNUSED_ARG(argument);
/* Create a new connection identifier. */
conn = netconn_new(NETCONN_TCP);
if (conn!=NULL)
{
/* Bind connection to well known port number 7. */
err = netconn_bind(conn, NULL, 7);
if (err == ERR_OK)
{
/* Tell connection to go into listening mode. */
netconn_listen(conn);
/* Infinite loop */
for(;;)
{
/* Grab new TCP connection. */
accept_err = netconn_accept(conn, &newconn);
/* Process the new connection. */
if (accept_err == ERR_OK)
{
while (netconn_recv(newconn, &buf) == ERR_OK)
{
do
{
netbuf_data(buf, &data, &len);
netconn_write(newconn, data, len, NETCONN_COPY);
}
while (netbuf_next(buf) >= 0);
netbuf_delete(buf);
}
/* Close connection and discard connection identifier. */
netconn_close(newconn);
netconn_delete(newconn);
}
}
}
else
{
netconn_delete(newconn);
}
}
/* USER CODE END tcp_echo_server */
}Also, I double-check that there is 'DHCP start' code.
In 'MX_LWIP_Init()' function, I could find the dhcp_start function.
So,,,.,.,., I think I did all the progress that I can do....
However, I can not connect any DHCP server program, even Window's DHCP mode.
Of course, I use IP Router device.
Is there anybody who using TCP/IP communication with DHCP on freeRTOS??
Or Is there any example??
Or My process is right??
Please help me to get out from this puzzle :(