按键控制运动（方向）

.config

@@ -434,7 +434,7 @@ CONFIG_RT_USING_ULOG=y
 # CONFIG_ULOG_OUTPUT_LVL_I is not set
 CONFIG_ULOG_OUTPUT_LVL_D=y
 CONFIG_ULOG_OUTPUT_LVL=7
-# CONFIG_ULOG_USING_ISR_LOG is not set
+CONFIG_ULOG_USING_ISR_LOG=y
 CONFIG_ULOG_ASSERT_ENABLE=y
 CONFIG_ULOG_LINE_BUF_SIZE=128
 # CONFIG_ULOG_USING_ASYNC_OUTPUT is not set

Day4/pin_irq_example.c

@@ -4,14 +4,17 @@
 #define LOG_TAG "pin.irq"
 #define LOG_LVL LOG_LVL_DBG
 #include <ulog.h>
+#include <rtatomic.h>
+#include "my_func.h"
 
 #define KEY_UP GET_PIN(C, 5)
 #define KEY_DOWN GET_PIN(C, 1)
 #define KEY_LEFT GET_PIN(C, 0)
 #define KEY_RIGHT GET_PIN(C, 4)
-
+extern rt_atomic_t now_direction ;
 void key_up_callback(void *args) 
 { 
+    if(rt_atomic_load(&now_direction) != 2) rt_atomic_store(&now_direction, 0);
     int value = rt_pin_read(KEY_UP);
     LOG_I("key up value: %d\n", value);
 }
@@ -19,17 +22,20 @@ void key_up_callback(void *args)
 void key_down_callback(void *args) 
 { 
     int value = rt_pin_read(KEY_DOWN);
+    if(rt_atomic_load(&now_direction) != 0) rt_atomic_store(&now_direction, 2);
     LOG_I("key down value: %d\n", value);
 }
 
 void key_left_callback(void *args) 
 { 
+    if(rt_atomic_load(&now_direction) != 3) rt_atomic_store(&now_direction, 1);
     int value = rt_pin_read(KEY_LEFT);
     LOG_I("key left value: %d\n", value);
 }
 
 void key_right_callback(void *args) 
 { 
+    if(rt_atomic_load(&now_direction) != 1) rt_atomic_store(&now_direction, 3);
     int value = rt_pin_read(KEY_RIGHT);
     LOG_I("key right value: %d\n", value);
 }

dayandnight/my_func.h

@@ -3,6 +3,7 @@
 #include <stdio.h>
 #include <malloc.h>
 
+                        // 当前方向
 void mytime();
 void xy_round(int x, int y, int x2, int y2, int r, int ii);
 void my_round(int r);

dayandnight/mysnake.c

@@ -4,10 +4,12 @@
 #include "my_func.h"
 #include "mysnake.h"
 #include <time.h>
+#include <rtatomic.h>
 
 #define LCD_MAX 240
 #define SNAKE_SIZE 20
 #define SNAKE_MAX LCD_MAX / SNAKE_SIZE
+rt_atomic_t now_direction=3 ;   
 
 // bool snake_table[SNAKE_MAX][SNAKE_MAX] = {0};
 // struct My_snake
@@ -20,6 +22,7 @@
 
 void snake_entry(void *parameter)
 {
+    system("irq");
     time_t t;
     /* 初始化随机数发生器 */
     srand((unsigned)time(&t));
@@ -28,7 +31,7 @@ void snake_entry(void *parameter)
     char snake_dirshow[4][7] = {"upup", "left", "down", "rigt"};
     char tmp[10];
     int snake_head = 2, snake_tail = 0, former_head; // 蛇头，蛇尾
-    int now_direction = 3;                           // 当前方向
+
     snake_list[1][0] = SNAKE_MAX / 2;
     snake_list[1][1] = SNAKE_MAX / 2;
     snake_list[0][0] = snake_list[1][0] - 1;
@@ -44,8 +47,8 @@ void snake_entry(void *parameter)
     int new_direction = 0;
     while (1)
     {
-        new_direction = rand() % 3;
+        // new_direction = rand() % 3;
-        now_direction = (now_direction+3+new_direction)%4;//防止反向,走回头路
+        // now_direction = (now_direction+3+new_direction)%4;//防止反向,走回头路
 
         former_head = snake_head;
         snake_head = (snake_head + 1) % (SNAKE_MAX);
@@ -57,7 +60,7 @@ void snake_entry(void *parameter)
         // rt_kprintf("head:%d,%d\n", snake_list[snake_head][0], snake_list[snake_head][1]);        
         lcd_show_string(20, 20, 16,snake_dirshow[now_direction]);
         lcd_show_string(20+16*4, 20, 16,tmp);
-        rt_thread_mdelay(1000);
+        rt_thread_mdelay(500);
 
         snake_address(snake_list[snake_head][0], snake_list[snake_head][1], SNAKE_SIZE, BLACK);
         snake_address(snake_list[snake_tail][0], snake_list[snake_tail][1], SNAKE_SIZE, WHITE);

rtconfig.h

@@ -276,6 +276,7 @@
 #define RT_USING_ULOG
 #define ULOG_OUTPUT_LVL_D
 #define ULOG_OUTPUT_LVL 7
+#define ULOG_USING_ISR_LOG
 #define ULOG_ASSERT_ENABLE
 #define ULOG_LINE_BUF_SIZE 128