void tsInit(void)
{
// Make sure that ADC is initialised
adcInit();
// Set initialisation flag
_tsInitialised = TRUE;
// Check if the touch-screen has been calibrated
if (eepromReadU8(CFG_EEPROM_TOUCHSCREEN_CALIBRATED) == 1)
{
// Load calibration data
_calibration.offsetLeft = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_LEFT);
_calibration.offsetRight = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_RIGHT);
_calibration.offsetTop = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_TOP);
_calibration.offsetBottom = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_BOT);
_calibration.divisorX = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_DIVX);
_calibration.divisorY = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_OFFSET_DIVY);
}
else
{
// Start touch-screen calibration
tsCalibrate();
}
}
unsigned short tsGetThreshhold(void) {
// Check if custom threshold has been set in eeprom
unsigned short thold = eepromReadU16(CFG_EEPROM_TOUCHSCREEN_THRESHHOLD);
if (thold != 0xFFFF) {
// Use value from EEPROM
_tsThreshhold = thold;
}
else {
// Use the default value from projectconfig.h
_tsThreshhold = CFG_TFTLCD_TS_DEFAULTTHRESHOLD;
}
return _tsThreshhold;
}
