delete needless readme.md and change some code

Author: luo jiao

README.md

@@ -8,15 +8,10 @@
 
 | 目录             | 例程                            |
 | ---------------- | ------------------------------- |
-| block            | 块设备的使用            |
-| can              | can 设备的使用             |
-| ethernet         | ethernet 设备的使用             |
-| i2c              | i2c 设备的使用             |
-| pin              | pin 设备的使用             |
-| pwm              | pwm 设备的使用 |
-| serial           | serial 设备的使用             |
-| spi              | spi 设备的使用             |
-| usb              | usb 设备的使用 |
+| i2c              | i2c 设备的使用                  |
+| pin              | pin 设备的使用                  |
+| serial           | serial 设备的使用               |
+| spi              | spi 设备的使用                  |
 
 ### 1.2 许可证
 

SConscript

@@ -8,17 +8,6 @@ group = []
 CPPPATH = []
 
 # add kernel samples.
-if GetDepend('PERIPHERAL_SAMPLES_USING_BLOCK'):
-    src += Glob('block/*.c')
-    CPPPATH += [cwd + '/block']
-
-if GetDepend('PERIPHERAL_SAMPLES_USING_CAN'):
-    src += Glob('can/*.c')
-    CPPPATH += [cwd + '/can']
-
-if GetDepend('PERIPHERAL_SAMPLES_USING_ETHERNET'):
-    src += Glob('ethernet/*.c')
-    CPPPATH += [cwd + '/ethernet']
 
 if GetDepend('PERIPHERAL_SAMPLES_USING_I2C'):
     src += Glob('i2c/*.c')
@@ -28,10 +17,6 @@ if GetDepend('PERIPHERAL_SAMPLES_USING_PIN'):
     src += Glob('pin/*.c')
     CPPPATH += [cwd + '/pin']
 
-if GetDepend('PERIPHERAL_SAMPLES_USING_PWM'):
-    src += Glob('pwm/*.c')
-    CPPPATH += [cwd + '/pwm']
-
 if GetDepend('PERIPHERAL_SAMPLES_USING_SERIAL'):
     src += Glob('serial/*.c')
     CPPPATH += [cwd + '/serial']
@@ -40,10 +25,6 @@ if GetDepend('PERIPHERAL_SAMPLES_USING_SPI'):
     src += Glob('spi/*.c')
     CPPPATH += [cwd + '/spi']
 
-if GetDepend('PERIPHERAL_SAMPLES_USING_USB'):
-    src += Glob('usb/*.c')
-    CPPPATH += [cwd + '/usb']
-
 group = DefineGroup('peripheral-samples', src, depend = ['PKG_USING_PERIPHERAL_SAMPLES'], CPPPATH = CPPPATH)
 
 Return('group')

block/README.md

@@ -10,15 +10,18 @@
 
 #include <rtthread.h>
 #include <rtdevice.h>
+#include <stdbool.h>
 
 #define AHT10_ADDR                  0x38
 #define AHT10_CALIBRATION_CMD       0xE1    /* 校准命令 */
 #define AHT10_NORMAL_CMD            0xA8    /* 一般命令 */
 #define AHT10_GET_DATA              0xAC    /* 获取数据命令 */
-#define I2C_BUS_NAME                "i2c1"  /* 传感器连接的I2C总线设备名称 */
+#ifndef AHT10_I2C_BUS_NAME
+#define AHT10_I2C_BUS_NAME          "i2c1"  /* 传感器连接的I2C总线设备名称 */
+#endif
 
 static struct rt_i2c_bus_device *i2c_bus = RT_NULL;
-static rt_uint8_t init_flag = 0;      /* 0:传感器没有初始化，1：传感器已经初始化 */
+static bool initialized = false;                 /* 传感器初始化状态 */
 
 /* 写 传感器寄存器 */
 static rt_err_t write_reg(struct rt_i2c_bus_device *bus, rt_uint8_t reg, rt_uint8_t *data)
@@ -71,39 +74,39 @@ static void aht10_init(void)
     rt_uint8_t temp[2] = {0, 0};
 
     /* 查找I2C总线设备，获取I2C总线设备句柄 */
-    i2c_bus = rt_i2c_bus_device_find(I2C_BUS_NAME);
+    i2c_bus = rt_i2c_bus_device_find(AHT10_I2C_BUS_NAME);
 
     if (i2c_bus == RT_NULL)
     {
-        rt_kprintf("can't find %s device", I2C_BUS_NAME);
+        rt_kprintf("can't find %s device", AHT10_I2C_BUS_NAME);
     }
     else
     {
         write_reg(i2c_bus, AHT10_NORMAL_CMD, temp);
-        rt_thread_delay(rt_tick_from_millisecond(600));     /* at least 300 ms */
+        rt_thread_mdelay(600);     /* at least 300 ms */
 
         temp[0] = 0x08;
         temp[1] = 0x00;
         write_reg(i2c_bus, AHT10_CALIBRATION_CMD, temp); 
-        rt_thread_delay(rt_tick_from_millisecond(600));     /* at least 300 ms */
+        rt_thread_mdelay(600);     /* at least 300 ms */
 
-        init_flag = 1;
+        initialized = true;
     }
 }
 
-static void i2c_sample(void)
+static void i2c_aht10_sample(void)
 {
     float humidity, temperature;
 
     humidity = 0.0;
     temperature = 0.0;
 
-    if (0 == init_flag)
+    if (!initialized)
     {
         /* 传感器初始化 */
         aht10_init();
     }
-    if (1 == init_flag)
+    if (initialized)
     {
         /* 读取温湿度数据 */
         read_temp_humi(&temperature, &humidity);
@@ -113,11 +116,8 @@ static void i2c_sample(void)
     }
     else
     {
-        rt_kprintf("init sensor failed\n");
+        rt_kprintf("initialize sensor failed\n");
     }
 }
 /* 导出到 msh 命令列表中 */
-MSH_CMD_EXPORT(i2c_sample, i2c device sample);
-
-
-
+MSH_CMD_EXPORT(i2c_aht10_sample, i2c aht10 sample);

can/README.md

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-08-15     misonyo      first implementation.
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+
+/* 引脚编号，通过查看drv_gpio.c确定 */
+#ifndef BEEP_PIN_NUM
+#define BEEP_PIN_NUM            37  /* PB2 */
+#endif
+#ifndef KEY0_PIN_NUM
+#define KEY0_PIN_NUM            55  /* PD8 */
+#endif
+#ifndef KEY1_PIN_NUM
+#define KEY1_PIN_NUM            56  /* PD9 */
+#endif
+
+void beep_on(void *args)
+{
+    rt_kprintf("turn on beep!\n");
+    
+    rt_pin_write(BEEP_PIN_NUM, PIN_HIGH);
+}
+
+void beep_off(void *args)
+{
+    rt_kprintf("turn off beep!\n");
+    
+    rt_pin_write(BEEP_PIN_NUM, PIN_LOW);
+}
+
+static void pin_sample(void)
+{
+    /* 按键0引脚为输入模式 */
+    rt_pin_mode(KEY0_PIN_NUM, PIN_MODE_INPUT_PULLUP);
+    /* 绑定中断，上升沿模式，回调函数名为beep_on */
+    rt_pin_attach_irq(KEY0_PIN_NUM, PIN_IRQ_MODE_FALLING, beep_on, RT_NULL);
+    /* 使能中断 */
+    rt_pin_irq_enable(KEY0_PIN_NUM, PIN_IRQ_ENABLE); 
+    
+    /* 按键1引脚为输入模式 */
+    rt_pin_mode(KEY1_PIN_NUM, PIN_MODE_INPUT_PULLUP);
+    /* 绑定中断，上升沿模式，回调函数名为beep_off */
+    rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_FALLING, beep_off, RT_NULL);
+    /* 使能中断 */
+    rt_pin_irq_enable(KEY1_PIN_NUM, PIN_IRQ_ENABLE);
+    /* 蜂鸣器引脚为输出模式 */
+    rt_pin_mode(BEEP_PIN_NUM, PIN_MODE_OUTPUT);
+
+}
+/* 导出到 msh 命令列表中 */
+MSH_CMD_EXPORT(pin_beep_sample, pin beep sample);