Zephyr初识_psoc4_gpio

1.设备树引入:
zephyr不同于常用的RTOS，pin脚定义部分需要配合dts,config,yaml等文件结合实现但是有着超强的可移植性。
pin脚定义如下

test0: testpin { 
	compatible = "gpio-outputs"; 

	testpin: testpin0 { 

	gpios = <&gpio_prt3 GPIO_ACTIVE_HIGH>; 

	label = "my label"; 
	}; 
}; 

2.yaml的引入：
我的理解是yaml相当于dts和c文件沟通的桥梁，每新建一个模块的dts需要实施更新对应的yaml

description: |
  This allows you to control a gpio pin

compatible: "gpio-outputs"

child-binding:
    description: |
      GPIO output child node
    properties:
       gpios:
          type: phandle-array
          required: true
          description: |
            pin function
       label:
          required: false
          type: string
          description: |
            gpio function.

3.main.c

#define MYPIN DT_NODELABEL(testpin) 

static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(gpiopin,gpiotest);
gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE); 
while(1)
{
//灯闪烁
	gpio_pin_toggle_dt(&led); 
}