nanopi.h

#ifndef NANOPI_H
#define NANOPI_H
 
#define ADDR0      7   // gpio 203
#define ADDR1      1  // gpio 6
#define ADDR2      15   // gpio 198
#define MOSI       12  // gpio 64
#define MISO       13  // gpio 65
#define CLK    14  // gpio 66
#define HVADCCS    4  // gpio 200
#define HVDACCS    5  // gpio 201
//#define ENHV     16  // gpio 199
#define RSTHV      0  // gpio 0
#define ENQP       2  // gpio 2
 
#define START    6
 
#define SPICHAN    0
#define SPISPEED   1000000
#define SPIMODE    2
 
#define DAC_ADDR12     5
#define DAC_ADDR34     2
#define RST_ALL        7
 
#define ADC_ADDR1      6
#define ADC_ADDR2      4
#define ADC_ADDR3      3
#define ADC_ADDR4      1
 
#include <wiringPi.h>
#include <wiringPiSPI.h>
#include <iostream>
#include <cstdint>
#include <unistd.h>
#ifdef DEBUG
static const bool gverbose = true;
 
#else
static const bool gverbose = false;
#endif
 

class NanoPi
{
 public:
   bool InitGPIO(); 
   bool InitSPI();  
   void AddrOff();  
   void SetAddr(short addr); 

   bool HasSPI(){ return(fdspi >= 0); }
   bool HasGPIO(){ return(fdgpio >= 0); }
   void SendWord(short cselect, unsigned char *buf, uint8_t nbytes);
   uint8_t Exch8(short cselect, uint8_t data){ SendWord(cselect, (unsigned char*)&data, 1); return data; }
   uint16_t Exch16(short cselect, uint16_t data){ SendWord(cselect, (unsigned char*)&data, 2); return data; }
   uint32_t Exch24(short cselect, uint32_t data){ SendWord(cselect, (unsigned char*)&data, 3); return data; }
   uint32_t Exch32(short cselect, uint32_t data){ SendWord(cselect, (unsigned char*)&data, 4); return data; }
   void ResetAll(){ SetAddr(RST_ALL); ResetHV(); AddrOff(); }
   void ResetHV(){ digitalWrite(RSTHV, LOW); usleep(100); digitalWrite(RSTHV, HIGH); }
   void EnableQP(bool on = true){ EnQP( on?HIGH:LOW );}
   void StartADC(){ digitalWrite(START, HIGH);}
   void StopADC(){ digitalWrite(START, LOW);}
   static uint32_t SpiConvert(const uint32_t &input, unsigned short nbytes = 4);
 
 private:
   void EnQP(int level = HIGH){ digitalWrite(ENQP, level);}
   int fdspi = 0;
   int fdgpio = 0;
   const char addrbit[3] = { ADDR0, ADDR1, ADDR2 };
};
 
#endif
 
 
 
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