利用STM32CubeMX来生成USB_HID_Mouse工程【添加ADC】（2）【非dma和中断方式】

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上回讲到怎么采集一路的adc的数据，这次我们来采集两路的数据。

现在直接修改原先的代码

/* Private variables ---------------------------------------------------------*/
uint16_t AD_Value_Buf[];
uint16_t AD_X_Value = ;
uint16_t AD_Y_Value = ;
/* USER CODE END PV */

/* USER CODE BEGIN 3 */
for(uint8_t i=;i<;i++)
{
/*##-1- Start the conversion process #######################################*/
HAL_ADC_Start(&hadc1);//<为启动ADC装换
/*##-2- Wait for the end of conversion #####################################*/
/**
* Before starting a new conversion, you need to check the current state of
* the peripheral; if it’s busy you need to wait for the end of current
* conversion before starting a new one.
* For simplicity reasons, this example is just waiting till the end of the
* conversion, but application may perform other tasks while conversion
* operation is ongoing.
*/
HAL_ADC_PollForConversion(&hadc1, );//<表示等待转换完成，第二个参数表示超时时间，单位ms.
/* Check if the continous conversion of regular channel is finished */
if(HAL_IS_BIT_SET(HAL_ADC_GetState(&hadc1), HAL_ADC_STATE_REG_EOC))
{ /*##-3- Get the converted value of regular channel ######################*/
AD_Value_Buf[i] = HAL_ADC_GetValue(&hadc1);
#ifdef RTT_LOG_ENABLED
loge("AD_Value_Buf[%d] %d",i,AD_Value_Buf[i]);
#endif//RTT_LOG_ENABLED
}
} HAL_ADC_Stop(&hadc1);

现在测测一下

现在和我们的HID的报告相结合

mouseHID.buttons = ;
mouseHID.x = ;
mouseHID.y = ;
mouseHID.wheel = ;

AD_X_Value = AD_Value_Buf[];
AD_Y_Value = AD_Value_Buf[];
#ifdef RTT_LOG_ENABLED
loge("AD_X_Value %d",AD_X_Value);
loge("AD_Y_Value %d",AD_Y_Value);
#endif//RTT_LOG_ENABLED
// Send HID report
mouseHID.x = AD_Value_map(AD_X_Value,,,-,);//从0-4095映射到-20~20
mouseHID.y = AD_Value_map(AD_Y_Value,,,,-);//从0-4095映射到20~-20
USBD_HID_SendReport(&hUsbDeviceFS, (uint8_t*)&mouseHID, sizeof(struct mouseHID_t));

/* USER CODE BEGIN 0 */
int16_t AD_Value_map(int16_t x, int16_t in_min, int16_t in_max, int16_t out_min, int16_t out_max)
{
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}
/* USER CODE END 0 */