ADC 接入板正确检测

.config

@@ -201,7 +201,7 @@ CONFIG_RT_USING_I2C_BITOPS=y
 # CONFIG_RT_I2C_BITOPS_DEBUG is not set
 # CONFIG_RT_USING_SOFT_I2C is not set
 # CONFIG_RT_USING_PHY is not set
-# CONFIG_RT_USING_ADC is not set
+CONFIG_RT_USING_ADC=y
 # CONFIG_RT_USING_DAC is not set
 # CONFIG_RT_USING_NULL is not set
 # CONFIG_RT_USING_ZERO is not set
@@ -1691,7 +1691,9 @@ CONFIG_BSP_USING_SPI=y
 CONFIG_BSP_USING_SPI2=y
 # CONFIG_BSP_SPI2_TX_USING_DMA is not set
 # CONFIG_BSP_SPI2_RX_USING_DMA is not set
-# CONFIG_BSP_USING_ADC is not set
+CONFIG_BSP_USING_ADC=y
+CONFIG_BSP_USING_ADC1=y
+# CONFIG_BSP_USING_ADC3 is not set
 CONFIG_BSP_USING_I2C=y
 # CONFIG_BSP_USING_I2C1 is not set
 CONFIG_BSP_USING_I2C2=y

my_pro/indicator_led.c

@@ -1,4 +1,10 @@
 #include "indicator_led.h"
+#include "rtdevice.h"
+
+#define ADC_DEV_NAME        "adc1"      /* ADC 设备名称 */
+#define ADC_DEV_CHANNEL     5           /* ADC 通道 */
+#define REFER_VOLTAGE       330         /* 参考电压 3.3V,数据精度乘以100保留2位小数*/
+#define CONVERT_BITS        (1 << 12)   /* 转换位数为12位 */
 
 #define LED_NUM 24 // LED灯珠个数
 
@@ -154,13 +160,57 @@ void led_breath_entry(void *parameter)
     }
 }
 
-// MSH_CMD_EXPORT_ALIAS(led_breath_thread,BREATH, "BREATH LIGHT");
+#define BORAD_NOT_CORRECT 25
+
+/**
+ * @brief 检测一下当前接入的是否是正确的板
+*/
+static int borad_check(void)
+{
+    rt_adc_device_t adc_dev;
+    rt_uint32_t value, vol;
+    rt_err_t ret = RT_EOK;
+
+    /* 查找设备 */
+    adc_dev = (rt_adc_device_t)rt_device_find(ADC_DEV_NAME);
+    if (adc_dev == RT_NULL)
+    {
+        rt_kprintf("adc sample run failed! can't find %s device!\n", ADC_DEV_NAME);
+        return RT_ERROR;
+    }
+
+    /* 使能设备 */
+    ret = rt_adc_enable(adc_dev, ADC_DEV_CHANNEL);
+
+    /* 读取采样值 */
+    value = rt_adc_read(adc_dev, ADC_DEV_CHANNEL);
+
+    /* 转换为对应电压值 */
+    vol = value * REFER_VOLTAGE / CONVERT_BITS;
+    if(vol>=0.25)
+    {
+        rt_kprintf("NOT correct borad!\n");
+        rt_kprintf("the value is :%d \n", value);
+        rt_kprintf("the voltage is :%d.%02d \n", vol / 100, vol % 100);
+        return BORAD_NOT_CORRECT;
+    }
+    /* 关闭通道 */
+    ret = rt_adc_disable(adc_dev, ADC_DEV_CHANNEL);
+
+    return ret;
+}
+/* 导出到 msh 命令列表中 */
+MSH_CMD_EXPORT(borad_check, adc voltage convert sample);
 
 /**
  * @brief LED的初始化
 */
 int led_init(void)
 {
+    if (borad_check()==BORAD_NOT_CORRECT)
+    {
+        return 0;
+    }    
     led_blink_thread = rt_thread_create("led blink control thread", led_blink_entry, RT_NULL, 1024, 20, 20);
     if (led_blink_thread == RT_NULL)
     {

my_pro/myproject.c

@@ -619,8 +619,6 @@ void my_project(void)
 
     serial_init();
 
-    led_blink_init();
+    led_init();
-
-    led_breath_init();
 }
 MSH_CMD_EXPORT_ALIAS(my_project, myproject, run my project);

rtconfig.h

@@ -133,6 +133,7 @@
 #define RT_SERIAL_RB_BUFSZ 64
 #define RT_USING_I2C
 #define RT_USING_I2C_BITOPS
+#define RT_USING_ADC
 #define RT_USING_PWM
 #define RT_USING_RTC
 #define RT_USING_SOFT_RTC
@@ -655,6 +656,8 @@
 #define BSP_USING_ON_CHIP_FLASH
 #define BSP_USING_SPI
 #define BSP_USING_SPI2
+#define BSP_USING_ADC
+#define BSP_USING_ADC1
 #define BSP_USING_I2C
 #define BSP_USING_I2C2
 #define BSP_I2C2_SCL_PIN 81