clock4digit.cpp

#include "clock4digit.h"

//  AA
// F  B
// F  B
//  GG
// E  C
// E  C
//  DD
//
//  GECAxFDB
static const uint8_t digits[10] = {
  0b01110111,  // 0
  0b00100001,  // 1
  0b11010011,  // 2
  0b10110011,  // 3
  0b10100101,  // 4
  0b10110110,  // 5
  0b11110110,  // 6
  0b00110001,  // 7
  0b11110111,  // 8
  0b10110101   // 9
};

Clock4digit::Clock4digit(int data, int wr, int cs): Ht162x(data, wr, cs) {}

void Clock4digit::begin(){
  init();

  sendCommand(0b001010010); // Bias 1/3, 10/4 commons
  sendCommand(0b000110000); // Internal RC 256K
  sendCommand(0b000001010); // Disable WDT 
  sendCommand(0b000001000); // Disable time base output
  sendCommand(0b000000010); // Turn on system oscillator
  sendCommand(0b000000110); // LCD on
}

void Clock4digit::setDigit(uint8_t pos, uint8_t value) {
  if (pos >= 4 || value >= 10)
    return;

  auto pattern = digits[value];

  for (int a = 0; a < 4; a++) {
    auto data = _displayData[a];
    bitWrite(data, pos, bitRead(pattern, a));
    bitWrite(data, pos + 4, bitRead(pattern, a + 4));
    sendData8(a, data);
  }
}

void Clock4digit::setSymbol(uint8_t symbol, bool enable) {
  uint8_t addr = symbol >> 3;
  uint8_t bitnum = symbol & 0x07;
  uint8_t mask = ~bit(bitnum);
  uint8_t tmp = _displayData[addr];
  tmp = tmp & mask;
  if (enable) {
    tmp = tmp | bit(bitnum);
  }
  sendData8(addr, tmp);
}

bool Clock4digit::getSymbol(uint8_t symbol) {
  uint8_t addr = symbol >> 3;
  uint8_t bitnum = symbol & 0x07;
  uint8_t tmp = _displayData[addr];
  return (tmp & bit(bitnum)) != 0;
}

void Clock4digit::setNumber(uint16_t value, uint8_t len, uint8_t offset){
  auto tmp = value;
  updateBegin();
  for(uint8_t x = 0; x < len; x++){
    auto digit = tmp % 10;
    tmp = tmp / 10;
    setDigit(offset + x, digit);
  }
  updateEnd();
}