6 years, 4 months ago.

STM32: socket.connect returns -3004

I am trying to use a STM32F407ZGT6 board with a DP83848 Ethernet PHY on a local network (mbed-os 5.12.3). The socket.connect returns -3004 (not connected to a network). 10.231.13.185 is my web server. What is wrong? Thank you for your help.

The debug part:

Ethernet socket example IP address is: 10.231.13.138 gethostbyname, 10.231.13.185:80, ret: 0 open, stat: 0 connect, stat: -3004 sent -3004 [GET /index.html HTTP/1.0] recv -3004 [] Done

The code:

<code>

1. include "mbed.h"
2. include "EthernetInterface.h"

/ETH GPIO Configuration PC1 --> ETH_MDC PA1 --> ETH_REF_CLK PA2 --> ETH_MDIO PA7 --> ETH_CRS_DV PC4 --> ETH_RXD0 PC5 --> ETH_RXD1 PB11 --> ETH_TX_EN PB12 --> ETH_TXD0 PB13 --> ETH_TXD1

• /

DigitalOut led1(PF_9); DigitalOut led2(PF_10); Serial pc(PA_9, PA_10);

void led2_thread() { while (true) { led2 = !led2; Thread::wait(1000); } }

Network interface EthernetInterface net;

Socket demo int main() { int stat; Thread thread1;

thread1.start(led2_thread);

pc.baud(115200); Bring up the ethernet interface pc.printf("\r\nEthernet socket example\r\n"); net.connect();

Show the network address const char *ip = net.get_ip_address(); pc.printf("IP address is: %s\r\n", ip ? ip : "No IP");

SocketAddress addr; nsapi_error_t ret = net.gethostbyname("10.231.13.185", &addr); Resolve and store into addr addr.set_port( 80 ); pc.printf("gethostbyname, %s:%d, ret: %d\r\n", addr.get_ip_address(), addr.get_port(), ret );

Open a socket on the network interface, and create a TCP connection TCPSocket socket; stat = socket.open(&net); pc.printf("open, stat: %d\r\n", stat );

stat = socket.connect( addr ); pc.printf("connect, stat: %d\r\n", stat );

Send a simple http request char sbuffer[] = "GET /index.html HTTP/1.0\r\n\r\n"; int scount = socket.send(sbuffer, sizeof sbuffer); pc.printf("sent %d [%.*s]\r\n", scount, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);

Recieve a simple http response and print out the response line char rbuffer[640]; int rcount = socket.recv(rbuffer, sizeof rbuffer); pc.printf("recv %d [%.*s]\r\n", rcount, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);

Close the socket to return its memory and bring down the network interface socket.close();

Bring down the ethernet interface net.disconnect(); pc.printf("Done\r\n"); } </code>