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Fix zraw assignment issue that was preventing touch press-and-hold from working

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This commit is contained in:
Reed Nightingale 2020-05-05 21:25:52 -07:00
parent b3a7e34d1b
commit e6fa6f935b
1 changed files with 6 additions and 8 deletions
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14
touch.cpp
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@ -6,7 +6,7 @@
#include "settings.h"
constexpr int16_t Z_THRESHOLD = 400;
constexpr uint8_t MSEC_THRESHOLD = 3;
constexpr uint8_t MSEC_THRESHOLD = 3;//Max sample rate is 125kHz, but we'll limit ourselves conservatively
constexpr uint8_t START_COMMAND = 1 << 7;
constexpr uint8_t CHANNEL_Y = 1 << 4;
@ -58,8 +58,6 @@ uint16_t touchReadChannel(uint8_t channel_command){
}
void touch_update(){
zraw = 0;//Default value to report
uint32_t now = millis();
if (now - msraw < MSEC_THRESHOLD){
return;
@ -73,12 +71,13 @@ void touch_update(){
int16_t z2 = touchReadChannel(MEASURE_Z2);//~4095 when not pressed, decreases with pressure
z += (4095 - z2);
//Serial.print(F("z1:"));Serial.print(z1);Serial.print(F(" z2:"));Serial.print(z2);Serial.print(F(" z:"));Serial.println(z);
if (z < Z_THRESHOLD) {
zraw = z;
if (zraw < Z_THRESHOLD) {//Don't bother reading x/y if we're not being touched
digitalWrite(PIN_TOUCH_CS, HIGH);
SPI.endTransaction();
return;
}
zraw = z;
// make 3 x-y measurements
int16_t data[6];
@ -88,14 +87,13 @@ void touch_update(){
data[3] = touchReadChannel(MEASURE_Y);
data[4] = touchReadChannel(MEASURE_X);
data[5] = touchReadChannel(MEASURE_Y & ~POWER_ADC_REF);//Turn off sensor
digitalWrite(PIN_TOUCH_CS, HIGH);
SPI.endTransaction();
int16_t x = touch_besttwoavg( data[0], data[2], data[4] );
int16_t y = touch_besttwoavg( data[1], data[3], data[5] );
//Serial.printf(" %d,%d", x, y);
//Serial.println();
msraw = now; // good read completed, set wait
switch (rotation) {
case 0: