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-rw-r--r--color.c4
-rw-r--r--color.h8
-rw-r--r--main.c78
-rw-r--r--trafficlight.c20
-rw-r--r--trafficlight.h15
5 files changed, 90 insertions, 35 deletions
diff --git a/color.c b/color.c
index e7e072d..297bd02 100644
--- a/color.c
+++ b/color.c
@@ -1,6 +1,4 @@
-#include "color.h"
-#include <stdint.h>
-
+#include "trafficlight.h"
void set_color(uint8_t color) {
uint32_t pins = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6;
diff --git a/color.h b/color.h
index 9a43477..f39e986 100644
--- a/color.h
+++ b/color.h
@@ -1,5 +1,3 @@
-#include "tivaware.h"
-
#define LED_RED (1U << 1)
#define LED_BLUE (1U << 2)
@@ -14,12 +12,12 @@
#define YELLOW_TF3 8
#define GREEN_TF3 9
#define PORTF GPIO_PORTF_DATA_R
-// #define RED 1
+#define RED 1
+#define YELLOW 2
+#define GREEN 3
// #define BLUE 2
-// #define GREEN 3
// #define MAGENTA 4
// #define CYAN 5
-// #define YELLOW 6
// #define WHITE 7
diff --git a/main.c b/main.c
index 64cc188..2826b11 100644
--- a/main.c
+++ b/main.c
@@ -1,26 +1,33 @@
#include "trafficlight.h"
-uint8_t cur_color_1 = RED_TF1;
-uint8_t cur_color_2 = YELLOW_TF2;
-uint32_t period_1 = RED_PERIOD;
-uint32_t period_2 = GREEN_PERIOD;
+uint32_t period_1 = RED_PERIOD;
+uint32_t period_2 = GREEN_PERIOD;
+uint32_t period_3 = RED_PERIOD;
+
+Traffic tf1 = {RED, GPIO_PORTF_BASE, 1, 2, 3};
+Traffic tf2 = {YELLOW, GPIO_PORTA_BASE, 2, 3, 4};
+Traffic tf_ped = {RED, GPIO_PORTB_BASE, 5, 0, 1};
+
+void Switch_Handler() {
+
+}
void Timer0_Handler() {
TimerIntClear(TIMER0_BASE, TIMER_BOTH);
- switch(cur_color_1) {
- case RED_TF1:
- cur_color_1 = GREEN_TF1;
- set_color(cur_color_1);
+ switch(tf1.cur_color) {
+ case RED:
+ tf1.cur_color = GREEN;
+ set_tf_color(tf1, GREEN);
TimerLoadSet(TIMER0_BASE, TIMER_BOTH, GREEN_PERIOD);
break;
- case YELLOW_TF1:
- cur_color_1 = RED_TF1;
- set_color(cur_color_1);
+ case YELLOW:
+ tf1.cur_color = RED;
+ set_tf_color(tf1, RED);
TimerLoadSet(TIMER0_BASE, TIMER_BOTH, RED_PERIOD);
break;
- case GREEN_TF1:
- cur_color_1 = YELLOW_TF1;
- set_color(cur_color_1);
+ case GREEN:
+ tf1.cur_color = YELLOW;
+ set_tf_color(tf1, YELLOW);
TimerLoadSet(TIMER0_BASE, TIMER_BOTH, YELLOW_PERIOD);
break;
}
@@ -28,33 +35,56 @@ void Timer0_Handler() {
void Timer1_Handler() {
TimerIntClear(TIMER1_BASE, TIMER_BOTH);
- switch(cur_color_2) {
- case RED_TF2:
- cur_color_2 = GREEN_TF2;
- set_color(cur_color_2);
+ switch(tf2.cur_color) {
+ case RED:
+ tf2.cur_color = GREEN;
+ set_tf_color(tf2, GREEN);
TimerLoadSet(TIMER1_BASE, TIMER_BOTH, GREEN_PERIOD);
break;
- case YELLOW_TF2:
- cur_color_2 = RED_TF2;
- set_color(cur_color_2);
+ case YELLOW:
+ tf2.cur_color = RED;
+ set_tf_color(tf2, RED);
TimerLoadSet(TIMER1_BASE, TIMER_BOTH, RED_PERIOD);
break;
- case GREEN_TF2:
- cur_color_2 = YELLOW_TF2;
- set_color(cur_color_2);
+ case GREEN:
+ tf2.cur_color = YELLOW;
+ set_tf_color(tf2, YELLOW);
TimerLoadSet(TIMER1_BASE, TIMER_BOTH, YELLOW_PERIOD);
break;
}
}
+void Timer2_Handler() {
+ TimerIntClear(TIMER2_BASE, TIMER_BOTH);
+ switch(tf_ped.cur_color) {
+ case RED:
+ tf_ped.cur_color = GREEN;
+ set_tf_color(tf_ped, GREEN);
+ TimerLoadSet(TIMER2_BASE, TIMER_BOTH, GREEN_PERIOD);
+ break;
+ case YELLOW:
+ tf_ped.cur_color = RED;
+ set_tf_color(tf_ped, RED);
+ TimerLoadSet(TIMER2_BASE, TIMER_BOTH, RED_PERIOD);
+ break;
+ case GREEN:
+ tf_ped.cur_color = YELLOW;
+ set_tf_color(tf_ped, YELLOW);
+ TimerLoadSet(TIMER2_BASE, TIMER_BOTH, YELLOW_PERIOD);
+ break;
+ }
+}
+
int main()
{
PortInit(GPIO_PORTF_BASE, SYSCTL_PERIPH_GPIOF); // Initialize portf
PortInit(GPIO_PORTA_BASE, SYSCTL_PERIPH_GPIOA); // Initialize porta
+ PortInit(GPIO_PORTB_BASE, SYSCTL_PERIPH_GPIOB); // Initialize portb
__asm("CPSID I"); // Disable all interrupts
TimerInit(TIMER0_BASE, Timer0_Handler, SYSCTL_PERIPH_TIMER0, period_1); // Intialize Timer0 with period_1
TimerInit(TIMER1_BASE, Timer1_Handler, SYSCTL_PERIPH_TIMER1, period_2); // Intialize Timer1 with period_2
+ TimerInit(TIMER2_BASE, Timer2_Handler, SYSCTL_PERIPH_TIMER2, period_3); // Intialize Timer1 with period_2
__asm("CPSIE I"); // Enable all interrupts
while(1) {
__asm("wfi"); // power saving mode
diff --git a/trafficlight.c b/trafficlight.c
index a004d98..eff06fb 100644
--- a/trafficlight.c
+++ b/trafficlight.c
@@ -1,11 +1,27 @@
#include "trafficlight.h"
+
+void set_tf_color(Traffic tf, uint8_t color) {
+ uint32_t pins = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6;
+ switch (color) {
+ case RED:
+ GPIOPinWrite(tf.port, pins, (1 << tf.red));
+ break;
+ case YELLOW:
+ GPIOPinWrite(tf.port ,pins, (1 << tf.yellow));
+ break;
+ case GREEN:
+ GPIOPinWrite(tf.port ,pins, (1 << tf.green));
+ break;
+ }
+}
+
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;
+ uint32_t pins = GPIO_PIN_0 | 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);
+ // 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);
diff --git a/trafficlight.h b/trafficlight.h
index 52ba584..2f8f33d 100644
--- a/trafficlight.h
+++ b/trafficlight.h
@@ -1,12 +1,25 @@
#include <stdint.h>
#include <stdbool.h>
+#include "tivaware.h"
#include "color.h"
-#include "dio.h"
#define TIVA_CLK 16e6
#define GREEN_PERIOD TIVA_CLK * 5
#define YELLOW_PERIOD TIVA_CLK * 2
#define RED_PERIOD TIVA_CLK * 7
+
+typedef struct Traffic{
+ uint8_t cur_color;
+ uint32_t port;
+ uint8_t red;
+ uint8_t yellow;
+ uint8_t green;
+} Traffic;
+
+extern Traffic tf1;
+extern Traffic tf2;
+
+void set_tf_color(Traffic tf, uint8_t color);
void PortInit(uint32_t port, uint32_t clk);
void TimerInit(uint32_t timer, void(*timer_handler)(), uint32_t clk, uint32_t delay);
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-06 06:08:12 +0000