c - 在 C 中为 pic18f1xk22 设置 ADC

Question

尝试学习 ADC 设置的初学者，但不幸的是，大多数在线示例都是针对其他 pic18 模型的，而且我没有 adc.h 定义作为资源。 (否则不适用于 C 代码。)真的不想被灌输答案，但如果有人能提出一些很棒的演练、在线资源等建议。我将非常感激，谢谢!

此外，对于我编写的这个伪代码的任何帮助都会很棒。可能有错误...不知道我是否在正确的轨道上。

//configure port
    //disable pin output driver (TRIS) - same thing as clear?
    //configure pin as analog
//configure adc module
    //set ADC conversion clock
    // configure voltage reference
    //select adc input channel
        //CH0-CH12 of ADCON0
    // select result format
        //select data format using the ADFM bit of the ADCON1 register                                                 
           //select aquisition delay  
    // turn on ADC module
        //enable A/D converter by setting the ADON bit of the ADCON0 register                                                     
//start conversion by setting GODONE bit of ADCON0 register
    //GODONE = 1;

// read ADC result
    //read the ADRESH and ADRESL registers
//clear the adc interrupt flag (optional)

Answer 1

还不完美，但大部分都弄清楚了。休息应该不会太困难..现在主要是需要实现中断。

    TRISc = 0x01; // disable tri-state    
    ANSEL = 0xFF;//setting to analog
    ADCON1 = 0x00;//Voltage References Set
    ADCON2 = 0x00;// left justified ADFM, set Acquisition Time and Conversion Clock
    ADCON0 = 0x11;// Analog Channel Select, GODONE set, Enable ADC

    //TODO:interrupt ADIF bit in the PIR1 register
    ADIF = 0;
    ADIE = 1;
    GODONE = 1;
    while(GODONE) {};

    adcValue = ADRESH;
    adcValue <<= 8;
    adcValue |= ADRESL;

    while(1){}