int main (void) {
MBED_HOSTTEST_TIMEOUT(20);
MBED_HOSTTEST_SELECT(udpecho_server_auto);
MBED_HOSTTEST_DESCRIPTION(UDP echo server);
MBED_HOSTTEST_START("NET_5");
EthernetInterface eth;
eth.init(); //Use DHCP
eth.connect();
printf("MBED: Server IP Address is %s:%d\r\n", eth.getIPAddress(), ECHO_SERVER_PORT);
UDPSocket server;
server.bind(ECHO_SERVER_PORT);
Endpoint client;
char buffer[BUFFER_SIZE] = {0};
printf("MBED: Waiting for packet...\r\n");
while (true) {
int n = server.receiveFrom(client, buffer, sizeof(buffer));
if (n > 0) {
//printf("Received packet from: %s\n", client.get_address());
const int buffer_string_end_index = n >= BUFFER_SIZE ? BUFFER_SIZE-1 : n;
buffer[buffer_string_end_index] = '\0';
//printf("Server received: %s\n", buffer);
server.sendTo(client, buffer, n);
}
}
}
void udp_server_task(void const *argument)
{
DigitalOut indicator(LED1);
UDPSocket server;
server.bind(ECHO_SERVER_PORT);
// printf("[udp_server_task] Start\r\n");
Endpoint client;
char buffer[BUFFER_SIZE] = { 0 };
while (true) {
//printf("[udp_server_task] Wait for packet...\r\n");
int n = server.receiveFrom(client, buffer, sizeof(buffer));
if (n > 0) {
//printf("[udp_server_task] Received packet from: %s\r\n", client.get_address());
const int buffer_string_end_index = n >= BUFFER_SIZE ? BUFFER_SIZE - 1 : n;
buffer[buffer_string_end_index] = '\0';
//printf("[udp_server_task] Server received: %s\r\n", buffer);
if (host_port == 0) {
strcpy(host_address, client.get_address());
host_port = ECHO_SERVER_PORT + 1;
//printf("[udp_server_task] Set host address and port: %s:%d\r\n", host_address, host_port);
}
// Dispatch data to client for sending to test HOST
cli_serv_mutex.lock(); // LOCK
// Push to datagram queue
datagram_queue.push_front(std::string(buffer));
max_queue_len = datagram_queue.size() > max_queue_len ? datagram_queue.size() : max_queue_len;
received_packets++;
cli_serv_mutex.unlock(); // LOCK
indicator = !indicator;
}
}
}
int main (void) {
EthernetInterface eth;
eth.init(); //Use DHCP
eth.connect();
printf("IP Address is %s\n", eth.getIPAddress());
UDPSocket server;
server.bind(ECHO_SERVER_PORT);
Endpoint client;
char buffer[256];
while (true) {
printf("\nWait for packet...\n");
int n = server.receiveFrom(client, buffer, sizeof(buffer));
printf("Received packet from: %s\n", client.get_address());
server.sendTo(client, buffer, n);
}
}
int main() {
bool result = false;
EthernetInterface eth;
eth.init(); //Use DHCP
eth.connect();
printf("UDP client IP Address is %s\n", eth.getIPAddress());
UDPSocket sock;
sock.init();
Endpoint nist;
nist.set_address(HTTP_SERVER_NAME, HTTP_SERVER_PORT);
char out_buffer[] = "plop"; // Does not matter
sock.sendTo(nist, out_buffer, sizeof(out_buffer));
union {
char in_buffer_tab[4];
unsigned int in_buffer_uint;
};
const int n = sock.receiveFrom(nist, in_buffer_tab, sizeof(in_buffer_tab));
if (n > 0) {
result = true;
const unsigned int timeRes = ntohl(in_buffer_uint);
const float years = timeRes / 60.0 / 60.0 / 24.0 / 365;
printf("UDP: Received %d bytes from server %s on port %d\r\n", n, nist.get_address(), nist.get_port());
printf("UDP: %u seconds since 01/01/1900 00:00 GMT ... %s\r\n", timeRes, timeRes > 0 ? "[OK]" : "[FAIL]");
printf("UDP: %.2f years since 01/01/1900 00:00 GMT ... %s\r\n", years, timeRes > YEARS_TO_PASS ? "[OK]" : "[FAIL]");
if (years < YEARS_TO_PASS) {
result = false;
}
}
sock.close();
eth.disconnect();
notify_completion(result);
return 0;
}
int main (void) {
EthernetInterface eth;
eth.init(); //Use DHCP
eth.connect();
printf("Server IP Address is %s:%d\n", eth.getIPAddress(), ECHO_SERVER_PORT);
UDPSocket server;
server.bind(ECHO_SERVER_PORT);
Endpoint client;
char buffer[BUFFER_SIZE] = {0};
while (true) {
printf("Wait for packet...\n");
int n = server.receiveFrom(client, buffer, sizeof(buffer));
if (n > 0) {
printf("Received packet from: %s\n", client.get_address());
const int buffer_string_end_index = n >= BUFFER_SIZE ? BUFFER_SIZE-1 : n;
buffer[buffer_string_end_index] = '\0';
printf("Server received: %s\n", buffer);
server.sendTo(client, buffer, n);
}
}
}
int main()
{
int result;
lwm2m_object_t * objArray[4];
printf("Start\n");
ethSetup();
printf("Initializing tinydtls\n");
// fake loading of PSK..
psk_id_length = strlen(PSK_DEFAULT_IDENTITY);
psk_key_length = strlen(PSK_DEFAULT_KEY);
memcpy(psk_id, PSK_DEFAULT_IDENTITY, psk_id_length);
memcpy(psk_key, PSK_DEFAULT_KEY, psk_key_length);
printf("Init\n");
dtls_init();
printf("New context\n");
dtls_context = dtls_new_context(&lwm2mH);
if (dtls_context == NULL) {
printf("error creating the dtls context\n");
}
printf("Setting handlers\n");
dtls_set_handler(dtls_context, &cb);
if (!dtls_context) {
printf("can't create dtls_context\n");
exit(-1);
}
printf("Initialazing Wakaama\n");
// create objects
objArray[0] = get_security_object(123, "coaps://5.39.83.206:5684", false);
securityObjP = objArray[0];
objArray[1] = get_server_object(123, "U", 20, false);
serverObject = objArray[1];
objArray[2] = get_object_device();
objArray[3] = get_object_firmware();
/*
* The liblwm2m library is now initialized with the functions that will be in
* charge of communication
*/
lwm2mH = lwm2m_init(prv_connect_server, prv_buffer_send, NULL);
if (NULL == lwm2mH)
{
fprintf(stderr, "lwm2m_init() failed\r\n");
return -1;
}
// configure the liblwm2m lib
result = lwm2m_configure(lwm2mH, "julien", NULL, 4, objArray);
if (result != 0)
{
printf("lwm2m_configure() failed: 0x%X\n", result);
return -1;
}
// start
result = lwm2m_start(lwm2mH);
if (result != 0)
{
printf("lwm2m_start() failed: 0x%X\n", result);
return -1;
}
// main loop
while (true) {
char buffer[1024];
Endpoint server;
printf("loop...\n");
struct timeval timeout;
timeout.tv_sec = 10;
timeout.tv_usec = 0;
result = lwm2m_step(lwm2mH, &timeout);
if (result != 0)
{
printf("lwm2m_step error %d\n", result);
}
int n = udp.receiveFrom(server, buffer, sizeof(buffer));
printf("Received packet from: %s of size %d\n", server.get_address(), n);
if (n>0) {
// TODO: find connection
connection_t * connP = connList;
while(connP != NULL) {
if (strcmp(connP->host, server.get_address()) == 0)
{
printf("found connection\n");
// is it a secure connection?
if (connP->dtlsSession != NULL) {
printf("dtls session\n");
result = dtls_handle_message(dtls_context, connP->dtlsSession, buffer, n);
printf("dtls handle message %d\n",result);
} else {
printf("nosec session\n");
lwm2m_handle_packet(lwm2mH, (uint8_t*)buffer, n, (void*)connP);
}
break;
}
}
if (connP == NULL) printf("no connection\n");
}
}
}
void main(void)
{
//***************** BEGINNING OF ETHERNET SETUP [DONT EDIT] *****************//
EthernetInterface eth;
eth.init(); //Use DHCP
eth.connect();
printf("IP Address is %s\n", eth.getIPAddress());
UDPSocket server;
server.bind(ECHO_SERVER_PORT);
Endpoint client;
char buffer[256];
//***************** END OF ETHERNET SETUP **********************************//
//***************** BEGINNING OF WIRELESS SETUP [DONT EDIT] *****************//
uint8_t channel = 6;
//Set the Channel. 0 is default, 15 is max
mrf.SetChannel(channel);
//Start the timer
timer.start();
//***************** END OF WIRELESS SETUP **********************************//
raiseAllPins();
dropAllPins();
speedChecker.attach(&speedLogic,0.005); //sets ticker for interrupts
dcOUT=0; // turns DC motor off initially
int cycles = 0;
int flush = 0;
int startChar =0;
while(1) {
dcPWM.write(dutyCycle);
cycles = cycles-1;
if(needsInput==true) {
//What MBED is receiving from client?
if(flush) {
int lengthBuffer = strlen(buffer);
for(int i = 0; i <lengthBuffer; i++) {
buffer[i]='\0';
}
}
printf("\nWait for packet...\n\r");
lightShow.drawChar('@'); //this should draw the character on the screen
int n = server.receiveFrom(client, buffer, sizeof(buffer));
printf("\nReceived packet...\n\r");
printf("\nReceived integer n...%i\n\r",n);
buffer[n]='\0';
printf("\nyour word is: %s\n\r",buffer);
server.sendTo(client, buffer, n); //echo protocol
needsInput=false;
cycles=n;
/*revive code*/
sendDelay = slowSpeed; //pins
dutyCycle = slowMotor; //motor
dcOUT = 1; //turn on motor
off=false;
slow = true;
startChar=0;
}
if(cycles<=0) {
needsInput= true;
slow = false;
off=true;
dcOUT = 0; //turn motor off
sendDelay = slowSpeed; //pins
dutyCycle = slowMotor; //for whenever it turns on after you turned it off using REDUCE
}
if(!off) {
char character = getNextCharacter(startChar, buffer);
startChar=1;
printf("\nchar: %c\n\r",character);
int pinBinary = braille.matchCharacter(character);
if(braille.isNumber(character)) {
handleNumberCase(character);
}
led1=1;
lightShow.drawChar(character); //this should draw the character on the screen
led1=0;
wait_ms(sendDelay);
sendNumber(pinBinary);
printf("Pinbinary: %i\n\r",pinBinary);
//***** ACKNOWLEDGE CODE ******//
int recLength = rf_receive(rxbuffer,128);
while(recLength<=0) {
led2=1;
recLength = rf_receive(rxbuffer,128);
}
led2=0;
//***** END ACKNOWLEDGE CODE ******//
}//end if motor stopped code
dropAllPins();
}//end while loop
}//end all code
