void Adc_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
/*----------------- ADC1 configuration with DMA enabled --------------------*/
/* Enable the HSI oscillator */
RCC_HSICmd(ENABLE);
/* Enable GPIOB clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
/* Configure PB.0 (ADC Channe8) in analog mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Check that HSI oscillator is ready */
while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
/* Enable ADC1 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* ADC1 configuration */
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 regular channel18 configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_4Cycles);
/* Enable ADC1 */
ADC_TempSensorVrefintCmd(ENABLE);
ADC_Cmd(ADC1, ENABLE);
/* Wait until the ADC1 is ready */
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_ADONS) == RESET)
{
Uart1_SendStr(".");
delay_ms(1000);
}
ADC_SoftwareStartConv(ADC1);
}
u16 Get_Adc(u8 ch)
{
//设置指定ADC的规则组通道，一个序列，采样时间
ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_96Cycles ); //ADC1,ADC通道,采样时间为239.5周期
delay_ms(50);
ADC_SoftwareStartConv(ADC1); //使能指定的ADC1的软件转换启动功能
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC )){
}
ADC_ClearFlag (ADC1,ADC_FLAG_EOC);
return ADC_GetConversionValue(ADC1); //返回最近一次ADC1规则组的转换结果
}
卡死在while 这里了
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