Add new code

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 35 insertions, 0 deletions

diff --git a/msp340/Timers/main.c b/msp340/Timers/main.c
new file mode 100755
index 0000000..59ecbdd
--- /dev/null
+++ b/msp340/Timers/main.c
@@ -0,0 +1,35 @@
+#include <msp430.h>
+
+#define UP      0x0010      // Set MC bits to enable TimerA UP mode
+#define ACLK    0x0100      // Configure TimerA to use the aux clock
+
+#define TIME_LIMIT 5000    // Timer limit
+
+#define RED_LED 0x0001
+#define WDT_OFF 0x5A80
+#define ENABLE_PINS 0xFFFE
+
+#define TA_INT_FLAG   0x0001      // TimerA_0 CTL Register bit interrupt flag
+                            // Raised by the timer when it reached its count
+
+main() {
+    WDTCTL  = WDT_OFF;       // Disable watchdog
+    PM5CTL0 = ENABLE_PINS;   // Enable I/O pins
+
+    TA0CCR0 = TIME_LIMIT;   // Set Capture/Compare Register to the number we want the
+                            // timer to count. The timer compares its count with the number stored here.
+    TA0CTL  = ACLK | UP;    // Setup TimerA_0 to UP mode
+
+
+    P1DIR   = RED_LED;      // Set P1.0 pin as output
+
+    while (1) {
+
+        if (TA0CTL & TA_INT_FLAG) {
+            P1OUT ^= RED_LED;
+
+            // Reset timer by disabling its interrupt flag
+            TA0CTL &= ~TA_INT_FLAG;
+        }
+    }
+}