例程里面的ADC_BACE 3指的是什么,这个和sequence有什么关系
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//
// Enable sample sequence 3 with a processor signal trigger. Sequence 3
// will do a single sample when the processor sends a signal to start the
// conversion. Each ADC module has 4 programmable sequences, sequence 0
// to sequence 3. This example is arbitrarily using sequence 3.
//
ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_PROCESSOR, 0);\
ADC_BACE,TM4C123x有两个ad,分别是adc0和adc1,这里用到的是adc0
3是序列通道,每个ad都有4个序列通道,这里用到的是通道3.