Added two timers and made them sync the 2 traffic lights as when one

traffic light is green the other is red and vice versa.

1 files changed, 29 insertions, 0 deletions

diff --git a/trafficlight.c b/trafficlight.c
new file mode 100644
index 0000000..a004d98
--- /dev/null
+++ b/trafficlight.c
@@ -0,0 +1,29 @@
+#include "trafficlight.h"
+
+void PortInit(uint32_t port, uint32_t clk) {
+  uint32_t pins = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6;
+  SysCtlPeripheralEnable(clk);
+  while(!SysCtlPeripheralReady(clk)) {};
+  GPIOUnlockPin(port, pins);
+  GPIOPinTypeGPIOInput(port, GPIO_PIN_0);
+  GPIOPinTypeGPIOOutput(port, pins);
+  GPIOPadConfigSet (port, GPIO_PIN_0 | GPIO_PIN_4 | GPIO_PIN_5, 
+  GPIO_STRENGTH_2MA,GPIO_PIN_TYPE_STD_WPU);
+}
+
+
+
+void TimerInit(uint32_t timer, void(*timer_handler)(), uint32_t clk, uint32_t delay) {
+  reset_color();
+  SysCtlPeripheralEnable(clk);
+  while(!SysCtlPeripheralReady(clk)) {}
+  TimerDisable(timer, TIMER_BOTH);
+  TimerConfigure(timer, (TIMER_CFG_PERIODIC));
+  TimerLoadSet(timer, TIMER_BOTH, delay);
+  TimerIntUnregister(timer, TIMER_BOTH);
+  TimerEnable(timer, TIMER_BOTH);
+  TimerIntRegister(timer, TIMER_BOTH, timer_handler);
+  TimerIntEnable(timer, TIMER_TIMA_TIMEOUT | TIMER_TIMB_TIMEOUT);
+}
+
+