Therverson Kanavathy
Shuttle Test Server
Revision 0:8ef98f26a429, committed 2017-01-13
- Comitter:
- tkanavathy
- Date:
- Fri Jan 13 13:33:09 2017 +0000
- Commit message:
- RTES - 20m Shuttle Test - Server
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Fri Jan 13 13:33:09 2017 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/users/tkanavathy/code/RTES-20m_Shuttle_Test-Server/#852f39d9f425
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jan 13 13:33:09 2017 +0000
@@ -0,0 +1,188 @@
+/*-- SERVER INCLUDES ---------------------------------------------------------*/
+#include "mbed.h"
+#include "EthernetInterface.h"
+/*-- GLOBAL CONSTANTS --------------------------------------------------------*/
+const int PORT = 7; //arbitrary port
+/*-- IP CONSTANT CONFIGURATION --*/
+static const char* SERVER_IP = "192.168.1.101"; //IP of server board
+
+static const char* MASK = "255.255.255.0"; //mask
+static const char* GATEWAY = "192.168.1.1"; //gateway
+/*-- INITIALISATION ----------------------------------------------------------*/
+Serial pc(USBTX, USBRX); //create PC interface
+EthernetInterface eth; //create ethernet
+UDPSocket server; //create Ethernet server
+Endpoint client; //create endpoint
+/* -- DECLARE LEDs for STATUS DISPLAY --*/
+DigitalOut red(LED_RED);
+DigitalOut green(LED_GREEN);
+DigitalOut blue(LED_BLUE);
+/*-- DECLARE INTERRUPTS --*/
+InterruptIn touch(SW2);
+InterruptIn butt3(SW3);
+Timer t_level, t_shuttle; //define timers to measure each level and shuttle
+/*--VARIABLES-----------------------------------------------------------------*/
+int i; //Loop iteration counter
+int n; //size of received message
+char message[6] = {0,01,1,1,'\0'}; //MESSAGE status[1],level[2],blue[1],line[1]
+char c_status[1], c_level[2], c_blue[1], c_line[1]; //receival buffers
+
+/*---- Status of program? ----*/
+/*------ 0 = Loaded --*/
+/*------ 1 = Start --*/
+/*------ 2 = In Progress --*/
+/*------ 3 = Stop --*/
+int status, level; //Keep track of the level of the Beep Test
+bool line; //Has runner crossed the line?
+
+/*-- FUNCTION DECLARATIONS ---------------------------------------------------*/
+void init_usb(void); //initializes pc.printf if required
+void init_eth(void); //initializes Ethernet
+void init_load(void); //initialise program
+void send(void); //Send packets
+void receive(void); //receives packets
+int main(void); //main
+
+
+/*-- INTERRUPT DEFINITIONS ---------------------------------------------------*/
+void ISR1()
+{
+ //Did the runner cross line in time, before showing RED?
+ if (red == 0) line = false; //Crossed line late
+ else line = true; // Crossed line in time
+}
+void ISR2()
+{
+ //Start/End Shuttle Run Test
+ if (status == 0) status = 1;
+ else status = 0;
+}
+
+/*-- FUNCTION DEFINITIONS ---------------------------------------------------*/
+/****INIT_USB BAUD RATE***/
+void init_usb(void)
+{
+ pc.baud(9600); //baud rate
+}
+
+/****OPEN_ETHERNET CONNECTION***/
+void init_eth(void)
+{
+ eth.init(SERVER_IP, MASK, GATEWAY); //set up IP
+ eth.connect(); //connect ethernet
+ pc.printf("\nSERVER - Server IP Address is %s\r\n", eth.getIPAddress()); //get server IP address;
+
+ server.bind(PORT); //bind server
+}
+
+/**** INITIALISE PROGRAM PARAMETERS***/
+void init_load(void)
+{
+ //Initialise flags and reset timers
+ level = 1; //Reset to starting level 1
+ line = true;
+ //Server LEDs flashes RED at 1Hz Loaded Status
+ red = !red;
+ green = 1;
+ blue = 1;
+ wait(0.5);
+ //Reset the timers
+ t_level.reset();
+ t_shuttle.reset(); //20*3600/(8000+500*level) = 144/(level+16) sec
+}
+
+/**** SEND MESSAGE ***/
+void send(void)
+{
+ sprintf(message, "%i %02i %i %i %c", status, level, int(blue), line, '\0');
+ server.sendTo(client, message, sizeof(message));
+ pc.printf("SERVER: Send '%s' to client %s\r\n", message, client.get_address()); //print message sent
+}
+
+/**** RECEIVE ***/
+void receive(void)
+{
+ pc.printf("\nSERVER: Waiting for UDP packet...\r\n"); //wait for packet
+ n = server.receiveFrom(client, message, sizeof(message)); //receive message from client
+ message[n] = ' '; //Remove \0 from message
+ pc.printf("SERVER: Received '%s' from client %s\r\n", message, client.get_address()); //print message from client
+ sscanf(message, "%s %s %s %s", &c_status, &c_level, &c_blue, &c_line);
+ status = atoi(c_status);
+ level = atoi(c_level);
+ blue = atoi(c_blue);
+ c_blue[0] = (blue == 0) ? '0' : '1';
+ line = atoi(c_line);
+ pc.printf("SERVER: Converted '%i %i %c %i' from client \r\n", status, level, c_blue[0], line); //print converted message
+} //end receive()
+
+/************ MAIN ************************************************************/
+int main(void)
+{
+ touch.fall(&ISR1); // attach address ISR to interrupt falling edge
+ butt3.rise(&ISR2); // attach address ISR to interrupt rising edge
+
+ init_usb(); //initialize the PC interface
+ init_eth(); //initialize the Ethernet connection
+ receive(); //Wait for connection from client
+
+ while (true) { //Repeat forever
+ switch (status) {
+ case 0 :
+ init_load(); //Display PROGRAM LOADED (SERVER) status
+ break;
+ case 1 : //Start Beep Test
+ send(); //Send Message to client
+ t_level.start(); //Start timer to measure each level
+ t_shuttle.start(); //Start timer to specify each shuttle
+ red = 0;
+ status = 2; //Change status to In Progress
+ break;
+ case 2 : //Wait for message
+ receive();
+ if (line == false) {
+ if (blue == 1) blue = 0;
+ else {
+ status = 3; //Stop the Beep Test
+ break;
+ }
+ } //end if-statement
+ line = true; //reset the line flag
+ if (t_level.read() >= 60) {
+ level++; //New level
+ t_level.reset();
+ t_level.start();//New level - Restart timer
+ for (i=0; i<4; i++) { //Flash green to indicate new level
+ green = !green;
+ wait_ms(250);
+ }
+ } //end if-statement
+ red = 1;
+ green = 0; //Display Solid green
+ wait(72/(level+16)); //half(t_shuttle)
+ red = 0; //Display solid Yellow
+ wait(72/(level+16));
+ send(); //Send message to client
+ green = 1;
+ break;
+ case 3 : //Stop the Beep Test, delay, then reload
+ red = blue = 0;
+ send(); //Send message to client
+ //LED FLASHES PURPLE at 1HZ square waves for 2 minutes
+ for (i=0; i<180; i++){
+ red = !red;
+ blue = !blue;
+ wait_ms(500);
+ }
+ status = 0; //Reset the Beep Test
+ break;
+ default :
+ red = 0; green = 1;
+ for (i=0; i<60; i++) { //FLASHING red green at 2Hz - status-error
+ red = !red;
+ green = !green;
+ wait_ms(250);
+ }
+ return(0);
+ } //End Switch-statement
+ } //End while-loop
+} //End Main()
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Fri Jan 13 13:33:09 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#58563e6cba1e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Jan 13 13:33:09 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/d75b3fe1f5cb \ No newline at end of file