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Small fixes

This commit is contained in:
Thomas Friedrichsmeier 2018-03-13 20:55:45 +01:00
parent 7e13702bcb
commit 97dbf08a5e
1 changed files with 2 additions and 2 deletions
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4
STM32F1/libraries/Serasidis_XPT2046_touch/src/XPT2046_touch.cpp
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@ -54,18 +54,18 @@ TS_Point XPT2046_touch::getPoint() {
TS_Point ret;
//Check if touch screen is pressed.
SPI.transfer(B10110011); // trigger Z1 reading
my_SPI.transfer(B10110011); // trigger Z1 reading
z1 = my_SPI.transfer16(B11000011) >> 3; // read Z1, and trigger Z2 reading
z2 = my_SPI.transfer16(B10010011) >> 3; // read Z2, and trigger Y reading
ret.z = z1 + 4095 - z2;
if(ret.z >= threshold){ //If the touch screen is pressed, read the X,Y coordinates from XPT2046.
ret.z = z1 + 4095 - z2;
ret.x = gatherSamples(B10010011);
ret.y = gatherSamples(B11010011);
} else {
ret.z = 0;
}
my_SPI.transfer(B00000000); // enter power saving (and IRQ enable)
digitalWrite(cs_pin, HIGH);
my_SPI.endTransaction();