uint16_t max7301::readAddress(byte addr){
startSend(1);
SPI.transfer(addr);
#if !defined(__SAM3X8E__) && ((ARDUINO >= 160) || (TEENSYDUINO > 121))
uint16_t temp = SPI.transfer16(0x0);
endSend();
return temp;
#else
byte low_byte = SPI.transfer(0x0);
byte high_byte = SPI.transfer(0x0);
endSend();
uint16_t temp = low_byte | (high_byte << 8);
return temp;
#endif
}
void mcp23s17::writeWord(byte addr, uint16_t data){
startSend(0);
SPI.transfer(addr);
SPI.transfer(word2lowByte(data));
SPI.transfer(word2highByte(data));
endSend();
}
uint8_t mcp23s08::gpioRegisterReadByte(byte reg){
uint8_t data = 0;
startSend(1);
SPI.transfer(reg);
data = SPI.transfer(0);
endSend();
return data;
}
uint8_t mcp23s08::readAddress(byte addr){
byte low_byte = 0x00;
startSend(1);
SPI.transfer(addr);
low_byte = SPI.transfer(0x0);
endSend();
return low_byte;
}
uint16_t mcp23s17::readAddress(byte addr){
startSend(1);
SPI.transfer(addr);
byte low_byte = SPI.transfer(0x0);
byte high_byte = SPI.transfer(0x0);
endSend();
return byte2word(high_byte,low_byte);
}
uint16_t mcp23s17::gpioRegisterReadWord(byte reg){
uint16_t data = 0;
startSend(1);
SPI.transfer(reg);
data = SPI.transfer(0);
data = SPI.transfer(0) << 8;
endSend();
return data;
}
void max7301::writeWord(byte addr, uint16_t data){
startSend(0);
SPI.transfer(addr);
#if !defined(__SAM3X8E__) && ((ARDUINO >= 160) || (TEENSYDUINO > 121))
SPI.transfer16(data);
#else
SPI.transfer(word2lowByte(data));
SPI.transfer(word2highByte(data));
#endif
endSend();
}
uint16_t max7301::gpioRegisterReadWord(byte reg){
uint16_t data = 0;
startSend(1);
SPI.transfer(reg);
#if !defined(__SAM3X8E__) && ((ARDUINO >= 160) || (TEENSYDUINO > 121))
data = SPI.transfer16(0);
#else
data = SPI.transfer(0);
data = SPI.transfer(0) << 8;
#endif
endSend();
return data;
}
void mcp23s08::writeByte(byte addr, byte data){
startSend(0);
SPI.transfer(addr);
SPI.transfer(data);
endSend();
}