stm32f103c8t6ADC1在定时器中断内采样PB0和PB1两个通道的值

好的，我可以为您提供代码片段来实现这个功能。

首先，您需要配置ADC并启用DMA传输来读取采样值。以下是配置ADC和DMA的代码：

// 启用ADC1时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);

// 初始化ADC1
ADC_InitTypeDef ADC_InitStructure;
ADC_StructInit(&ADC_InitStructure);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 2;
ADC_Init(ADC1, &ADC_InitStructure);

// 配置ADC通道0和通道1
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 1, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 2, ADC_SampleTime_55Cycles5);

// 启用DMA传输
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
DMA_InitTypeDef DMA_InitStructure;
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&ADC1->DR;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&adcValues;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 2;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_Cmd(DMA1_Channel1, ENABLE);

// 启用ADC1 DMA传输
ADC_DMACmd(ADC1, ENABLE);

然后，您需要配置定时器以在每个采样周期内启动ADC转换。以下是配置定时器的代码：

// 启用TIM3时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

// 初始化TIM3
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructure.TIM_Prescaler = 72 - 1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = 1000 - 1;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

// 配置TIM3通道1作为PWM输出
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 500 - 1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC1Init(TIM3, &TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);

// 启用TIM3更新中断
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);

// 启用TIM3计数器
TIM_Cmd(TIM3, ENABLE);

最后，在定时器中断处理程序中获取ADC采样值。以下是定时器中断处理程序的代码：

void TIM3_IRQHandler(void)
{
    if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
    {
        // 清除中断标志
        TIM_ClearITPendingBit(TIM3, TIM_IT_Update);

        // 启动ADC转换
        ADC_SoftwareStartConvCmd(ADC1, ENABLE);

        // 等待DMA传输完成
        while (!DMA_GetFlagStatus(DMA1_FLAG_TC1));

        // 清除DMA传输完成标志
        DMA_ClearFlag(DMA1_FLAG_TC1);

        // 获取ADC采样值
        uint16_t adcValue1 = adcValues[0];
        uint16_t adcValue2 = adcValues[1];

        // 处理采样值
        // ...

        // 重新启动DMA传输
        DMA_Cmd(DMA1_Channel1, ENABLE);
    }
}

请注意，这只是一个示例代码片段，可能需要根据您的具体应用程序进行修改。