james
/
rsoc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

调整信号量，将灯的操作放回灯的线程中

This commit is contained in:
james 2024-07-25 01:18:28 +08:00
parent da6779f796
commit 7e669bc8da
2 changed files with 19 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Day3/README.md
View File

@ -181,7 +181,16 @@ dist 的好处
pkgs --update pkgs --update
``` ```
## 示例点灯 ## 示例灭灯
### 灭了怎么点都不亮 ### 灭了怎么点都不亮
在key线程循环中每次点亮？
因为按键按灭就没再点亮 因为按键按灭就没再点亮
在key线程循环开始每次点亮？
### 灯轻微闪烁，几乎看不出
不能及时获取？用无等待获取信号量？
### 还是一样……
因为采用了延时防止误触，判断是否按下按键花了一点时间
~~只要知道按键没有按下就亮灯就行~~
在下次判断按键没按下之后再亮灯
### 居然在按键的线程在控制led
改为没摁才释放信号量，led线程获取到后设为亮灯
并在获取信号量前将led设为灭灯

17
applications/main.c
View File

@ -79,23 +79,22 @@ static void key_name_entry(void *parameter)
rt_uint32_t count=0; rt_uint32_t count=0;
while (1) while (1)
{ {
if(rt_pin_read(PIN_KEY0) == PIN_LOW) if(rt_pin_read(PIN_KEY0) == PIN_LOW)
{ {
rt_thread_mdelay(100); rt_thread_mdelay(100);
if(rt_pin_read(PIN_KEY0) == PIN_LOW) if(rt_pin_read(PIN_KEY0) == PIN_LOW)
{ {
rt_kprintf("key0 is pressed (%d)\r", count++); rt_kprintf("key0 is pressed (%d) ", count++);
rt_sem_release(dynamic_sem); // rt_sem_release(dynamic_sem);
} }
else else
{ {
rt_pin_write(GPIO_LED_R, PIN_LOW); rt_sem_release(dynamic_sem);
} }
} }
else else
{ {
rt_pin_write(GPIO_LED_R, PIN_LOW); rt_sem_release(dynamic_sem);
} }
rt_thread_mdelay(10); rt_thread_mdelay(10);
} }
@ -108,15 +107,11 @@ static void led_name_entry(void *parameter)
rt_uint32_t result=0; rt_uint32_t result=0;
while (1) while (1)
{ {
rt_pin_write(GPIO_LED_R, PIN_HIGH);
result = rt_sem_take(dynamic_sem, RT_WAITING_FOREVER); result = rt_sem_take(dynamic_sem, RT_WAITING_FOREVER);
if (result == RT_EOK) if (result == RT_EOK)
{ {
rt_kprintf("LED HIGH\n"); // rt_kprintf("LED LOW\n");
rt_pin_write(GPIO_LED_R, PIN_HIGH);
}
else
{
rt_kprintf("LED LOW");
rt_pin_write(GPIO_LED_R, PIN_LOW); rt_pin_write(GPIO_LED_R, PIN_LOW);
} }