polargraph_arduino/libraries/UTouch/hardware/arm/HW_ARM.inc

37 lines
669 B
C++

// Results becomes inaccurate if direct port manipulation is used hence the use of digitalWrite() and digitalRead()
void UTouch::touch_WriteData(byte data)
{
byte temp;
temp=data;
cbi(P_CLK, B_CLK);
for(byte count=0; count<8; count++)
{
if(temp & 0x80)
digitalWrite(T_DIN, HIGH);
else
digitalWrite(T_DIN, LOW);
temp = temp << 1;
digitalWrite(T_CLK, LOW);
digitalWrite(T_CLK, HIGH);
}
}
word UTouch::touch_ReadData()
{
word data = 0;
for(byte count=0; count<12; count++)
{
data <<= 1;
digitalWrite(T_CLK, HIGH);
digitalWrite(T_CLK, LOW);
if (digitalRead(T_DOUT))
data++;
}
return(data);
}