Diff: main.cpp

Revision:

2:4857a7cbb9da

Parent:

1:284229960d6a

Child:

3:f04c8a88a27d

--- a/main.cpp	Wed Jan 24 22:59:37 2018 +0000
+++ b/main.cpp	Wed Jan 23 17:56:08 2019 +0000
@@ -1,7 +1,7 @@
 // Lab 3 Example Program 2
 // -----------------------
 // Periodically write to the AnalogOut to create a sine wave
-// Alternate between two fixed frequencies every 5 sec
+// Alternate between two fixed frequencies every 30 sec
 //
 // THIS VERSION HAS DEBUGGING CODE USING THE SERIAL PORT
 
@@ -17,7 +17,7 @@
 Thread debugT ;
 Serial pc(USBTX, USBRX); // tx, rx, useful for debugging
 
-// Put a simple reprsentation of the sine wave
+// Put a simple representation of the sine wave
 //  to the serial output. ONLY at low frequency
 void debug(int index) {
     int sine4 = sine[index] >> 11 ; // get top 5 bits
@@ -37,7 +37,7 @@
 }
 // ---- end of debugging code ---------
 
-// Function called every periodically
+// Function called periodically
 // Write new value to AnalogOut 
 void writeAout() {
     ao.write_u16(sine[index]) ;
@@ -53,11 +53,11 @@
     while (true) {
         pc.printf("Update at 64 x 100ms giving about 0.15Hz\n");
         tick.attach_us(callback(&writeAout), update_us); // setup ticker to write to AnalogOut
-        Thread::wait(30000) ; // wait 30 sec - 30000ms
+        wait(30.0) ; // wait 30 sec - 30000ms
         update_us = 150000 ; // 150ms
         pc.printf("Update at 64 x 150ms giving about 0.1Hz\n");
         tick.attach_us(callback(&writeAout), update_us); // setup ticker to write to AnalogOut
-        Thread::wait(30000) ; // wait 30 sec - 30000ms
+        wait(30.0) ; // wait 30 sec - 30000ms
         update_us = 100000 ; // 100ms
     }
 }