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从事使用二进制命令代码的 arduino 项目。

采样率和过滤器类型是连接的 2 个代码。采样率 = MSB 一半，滤波器类型 = LSB 一半。

发现：C中的按位连接

#include <stdio.h>
int main() {

    int first = 0b1010;
              //^^v See here
    int second = 0b0011;
    int result = (first << 4) | second;
    printf("%d", result);

    return 0;

它显示了如何连接两个二进制值并将它们相加。

.h file在as 宏中包含所有二进制代码。我可以对纯二进制值做同样的事情吗？类型是什么？将使用连接的二进制值 - 作为函数中的命令。

二进制代码命令的用法目前看起来像

所有宏：

    //Sample Rate and Filter Type Codes From ADS1261 Datasheets
/*Binary Code Commands Defining Sampling Rate and Filter Type - http://www.ti.com/lit/ds/symlink/ads1261.pdf#page=61*/

 //ADC DATA RATE
#define SPS_2_PT_5        0b00000  //SPS = 2.5
#define SPS_5             0b00001  //SPS = 5
#define SPS_10            0b00010  //SPS = 10
#define SPS_16_PT_6       0b00011  //SPS = 16.6
#define SPS_20_DEFAULT    0b00100  //SPS = 20 <--- this is also the default.
#define SPS_50            0b00101  //SPS = 50
#define SPS_60            0b00110  //SPS = 60
#define SPS_100           0b00111  //SPS = 100
#define SPS_400           0b01000  //SPS = 400
#define SPS_1200          0b01001  //SPS = 1200
#define SPS_2400          0b01010  //SPS = 2400
#define SPS_4800          0b01011  //SPS = 4800
#define SPS_7200          0b01100  //SPS = 7200
#define SPS_14400         0b01101  //SPS = 14400
#define SPS_19200         0b01110  //SPS = 19200
#define SPS_25600         0b00110  //SPS = 25600
#define SPS_40000         0b10000  //SPS (f_CLK - 10.24 MHz)

//Define Filter Types
#define F_SINC1 0b000 //SINC1
#define F_SINC2 0b001 //SINC2
#define F_SINC3 0b010 //SINC3
#define F_SINC4 0b011 //SINC4
#define F_FIR   0b100 //FIR// Default if not specified.
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1 回答 1

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这将是完全相同的代码。宏将替换为二进制文字，文字将被提升为整数，然后左移后跟 or 运算符将被调用。

于 2019-07-26T15:11:23.380 回答