Revision 2:a8c19b073684, committed 2015-03-30

Comitter:

eduardoG26

Date:

Mon Mar 30 15:33:35 2015 +0000

Parent:

1:fa206fcadfad

Commit message:

bugfix: timer mask

Changed in this revision

--- a/main.cpp	Mon Mar 30 14:44:14 2015 +0000
+++ b/main.cpp	Mon Mar 30 15:33:35 2015 +0000
@@ -10,10 +10,17 @@
 
 TextLCD_I2C lcd(&i2c_lcd, 0x40, TextLCD::LCD16x2); // I2C bus, PCF8574 Slaveaddress, LCD Type
 
+// Trick to change baudrate of stdout, SFord
+void baud(int baudrate)
+{
+    Serial s(USBTX, USBRX);
+    s.baud(baudrate);
+}
+
 int main()
 {
     uint32_t    Millis, LastMillis;
-
+    baud(921600);   // see function above
     i2c_lcd.frequency(400000);  // 400KHz
     lcd.setCursor(lcd.CurOff_BlkOff); // Cursor off, Blink off
     lcd.cls();
@@ -22,17 +29,20 @@
     lcd.printf("Testing Timer...\n");
     lcd.locate(0,1);  // Goto beginning of line = second par.
     lcd.printf("...us overflow  \n");
-    printf("Testing Timer us overflow\n");
+    printf("\nTesting Timer us overflow..\n");
 
     t.reset();
     t.start();
-    Millis = t.read_ms() & 0x2000;
+
+#define TIMER_MASK (0x1000uL - 1)
+
+    Millis = t.read_ms() & TIMER_MASK;
     lcd.locate(0,1);  // Goto beginning of line = second par.
     lcd.printf("Start M: %08d",Millis);
 
     do {
         LastMillis = Millis;
-        Millis = t.read_ms() & 0x2000;
+        Millis = t.read_ms() & TIMER_MASK;
     } while(LastMillis <= Millis);
 
     lcd.locate(0,0);  // Goto beginning of line = second par.
@@ -40,6 +50,6 @@
     lcd.locate(0,1);
     lcd.printf("Act. M: %08d",Millis);
 
-    printf("Last Millis: %08d",LastMillis);
-    printf("Act. Millis: %08d",Millis);
+    printf("Last Millis: %08d\n",LastMillis);
+    printf("Act. Millis: %08d\n",Millis);
 }