需要同时用到10个通道，ADC0初始化程序如下：
SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);//开启ADC时钟
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);//开启相应ADC引脚时钟
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);//开启相应ADC引脚时钟
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);//开启相应ADC引脚时钟
SysCtlPeripheralEnable(SYSCTL_PERIPH_EEPROM0);
GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_3 | GPIO_PIN_2 | GPIO_PIN_1 | GPIO_PIN_0);//通道引脚初始化
GPIOPinTypeADC(GPIO_PORTD_BASE, GPIO_PIN_7 | GPIO_PIN_6 | GPIO_PIN_5 | GPIO_PIN_4);//通道引脚初始化
ADCSequenceConfigure(ADC0_BASE, ADC_SS0, ADC_TRIGGER_PROCESSOR, 0);//ADC模式配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 0, ADC_CTL_CH0);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 1, ADC_CTL_CH1);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 2, ADC_CTL_CH2);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 3, ADC_CTL_CH3);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 4, ADC_CTL_CH4);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 5, ADC_CTL_CH5);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 6, ADC_CTL_CH6);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS0, 7, ADC_CTL_CH7 | ADC_CTL_IE | ADC_CTL_END);//采样通道配置
ADCSequenceEnable(ADC0_BASE, ADC_SS0); //使能采样序列
ADCIntClear(ADC0_BASE, ADC_SS0); //清除中断标志
ADCIntRegister(ADC0_BASE, ADC_SS0,ADC_SS0_pfnIntHandler);//注册ADC中断函数
ADCIntEnable(ADC0_BASE, ADC_SS0);
IntEnable(INT_ADC0SS0);
/*****ADC0_SS2初始化******/
GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_5 | GPIO_PIN_4);//通道引脚初始化
GPIOPinTypeADC(GPIO_PORTB_BASE, GPIO_PIN_5 | GPIO_PIN_4);//通道引脚初始化
ADCSequenceConfigure(ADC0_BASE, ADC_SS2, ADC_TRIGGER_PROCESSOR, 0);//ADC模式配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS2, 0, ADC_CTL_CH8);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS2, 1, ADC_CTL_CH9);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS2, 2, ADC_CTL_CH10);//采样通道配置
ADCSequenceStepConfigure(ADC0_BASE, ADC_SS2, 3, ADC_CTL_CH11 | ADC_CTL_IE | ADC_CTL_END);//采样通道配置
ADCSequenceEnable(ADC0_BASE, ADC_SS2); //使能采样序列
ADCIntClear(ADC0_BASE, ADC_SS2); //清除中断标志
ADCIntRegister(ADC0_BASE, ADC_SS2,ADC_SS2_pfnIntHandler);//注册ADC中断函数
ADCIntEnable(ADC0_BASE, ADC_SS2);
IntEnable(INT_ADC0SS2);
/***********/
IntMasterEnable();
发现CH8的检测值有很大偏差，实际2500mV左右，检测为2950mV，转换公式是：,pui32ADC0Value*3300/4096。
还有就是如果同时启用12个通道，CH1悬空时有300多mV的值，如果只启用ss0的8个通道，8个通道悬空的值都是小于10的。造成这些现象的原因是什么呢？
