void ADCManager_Structure(ADCManagerTypeDef *ADCManager)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
u8 i;
defaultADCManager=ADCManager;
defaultADCManager->getData=ADCManager_getData;
defaultADCManager->startTransfer=ADCManager_startTransfer;
//defaultADCManager->ADC_Channels_num=sizeof(defaultADCManager->ADC_Channels);
RCC_APB2PeriphClockCmd(filterGPIO_RCC_ADC() | RCC_APB2Periph_ADC1 , ENABLE ); //使能ADC1通道时钟
RCC_ADCCLKConfig(RCC_PCLK2_Div6); //设置ADC分频因子6 72M/6=12,ADC最大时间不能超过14M
for(i=0;i<defaultADCManager->ADC_Channels_num;i++)
{
if(defaultADCManager->ADC_Channels[i]==ADC_Channel_16|defaultADCManager->ADC_Channels[i]==ADC_Channel_17)
continue;
GPIO_InitStructure.GPIO_Pin = filterPin_ADC(defaultADCManager->ADC_Channels[i]);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //模拟输入引脚
GPIO_Init(filterGPIO_ADC(defaultADCManager->ADC_Channels[i]), &GPIO_InitStructure);
}
ADC_DeInit(ADC1); //复位ADC1,将外设 ADC1 的全部寄存器重设为缺省值
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ADC工作模式:ADC1和ADC2工作在独立模式
ADC_InitStructure.ADC_ScanConvMode = ENABLE; //模数转换工作在单通道模式
ADC_InitStructure.ADC_ContinuousConvMode = (FunctionalState)defaultADCManager->isContinus; //模数转换工作在单次转换模式
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //转换由软件而不是外部触发启动
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADC数据右对齐
ADC_InitStructure.ADC_NbrOfChannel = defaultADCManager->ADC_Channels_num; //顺序进行规则转换的ADC通道的数目
ADC_Init(ADC1, &ADC_InitStructure); //根据ADC_InitStruct中指定的参数初始化外设ADCx的寄存器
for(i=0;i<defaultADCManager->ADC_Channels_num;i++)
{
if(defaultADCManager->ADC_Channels[i]==ADC_Channel_16|defaultADCManager->ADC_Channels[i]==ADC_Channel_17)
ADC_TempSensorVrefintCmd(ENABLE);
ADC_RegularChannelConfig(ADC1, defaultADCManager->ADC_Channels[i], i+1, ADC_SampleTime_239Cycles5 ); //ADC1,ADC通道,采样时间为239.5周期
}
ADC_DMA_Config();
ADC_DMACmd(ADC1, ENABLE);
ADC_Cmd(ADC1, ENABLE); //使能指定的ADC1
ADC_ResetCalibration(ADC1); //使能复位校准
while(ADC_GetResetCalibrationStatus(ADC1)); //等待复位校准结束
ADC_StartCalibration(ADC1); //开启AD校准
while(ADC_GetCalibrationStatus(ADC1)); //等待校准结束
}
/**
* @brief Main program
* @param None
* @retval None
*/
void ADC_Example(void) {
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32l1xx_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32l1xx.c file
*/
/* ADC1 channel18 configuration using DMA1 channel1 */
ADC_DMA_Config();
while (1)
;
}
void stm32_adc_init(void)
{
ADC_DMA_Config();
ADC_SoftwareStartConv(ADC3);
}
