Diff: main.cpp

Revision:

0:df4d7c0a1594

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Apr 06 12:28:01 2015 +0000
@@ -0,0 +1,93 @@
+#include "mbed.h"
+// Need include below to add the RTOS
+#include "rtos.h"
+//#include "EthernetInterface.h" //needed for Extra Credit
+//#include "NTPClient.h"
+#include "SDFileSystem.h"
+#include "uLCD_4DGL.h"
+#include "TMP36.h"
+#include "wave_player.h"
+// Setup four builtin leds for use by threads
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+
+AnalogOut DACout(p18); // used to play sound on speaker
+
+//wave player plays a *.wav file to D/A and a PWM
+wave_player waver(&DACout);
+
+uLCD_4DGL uLCD(p28,p27,p29); // serial tx, serial rx, reset pin;
+
+SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card setup
+
+
+// Setup function code for three new threads to run.
+// Put in a while loop so that threads run forever.
+// Thread::wait will force at least a "x" millisecond
+// wait before the thread runs again. During this delay
+// the other threads will run
+// DO NOT use wait() with the RTOS!!!!!
+// wait just burns processor time and no other threads run
+void led2_thread(void const *argument)
+{
+    led2 = 1;
+    while (true) {
+        led2 = !led2;
+        Thread::wait(2000);
+    }
+}
+void led3_thread(void const *argument)
+{
+    led3 = 1;
+    while (true) {
+        led3 = !led3;
+        Thread::wait(4000);
+    }
+}
+void led4_thread(void const *argument)
+{
+    TMP36 myTMP36(p20);
+    led4 = 1;
+    while (true) {
+        led4 = !led4;
+        Thread::wait(8000);
+    }
+}
+
+int main()
+{
+    led1 = 1;
+// code to set time in extra credit option goes here
+//
+    uLCD.baudrate(3000000); //jack up baud rate to max for fast display
+    uLCD.text_width(2); //2x size text
+    uLCD.text_height(2);
+// Create 3 new thread objects thread1, thread2, and thread3
+// The RTOS will immediately start running them
+    Thread thread1(led2_thread);
+    Thread thread2(led3_thread);
+    Thread thread3(led4_thread);
+// Main continues to run and is actually the first thread.
+// So a total of four threads are running now.
+// Each thread blinks an LED, but at a different rate
+// because of the different values used in Thread::wait().
+//
+// Set time in seconds since Jan 1 1970 (Unix style)
+// must set time to start Real Time clock running
+    set_time(1286729737);
+    char buffer[12];
+    time_t seconds;
+    while (true) {
+// reads time structure
+        seconds = time(NULL);
+// converts time structure to a string
+        strftime(buffer, 12, "%T", localtime(&seconds));
+// print time HH:MM:SS
+        uLCD.locate(0,2);
+        uLCD.printf("%s\n\r", buffer);
+        led1 = !led1;
+        Thread::wait(1000);
+    }
+}