suspend interrupts while reading touch, hopefully fixes #1

todbot · todbot · commit d2153aa049b2 · 2024-11-09T17:35:28.000-08:00
diff --git a/firmware/TouchwheelSAO_attiny816/TouchyTouch.h b/firmware/TouchwheelSAO_attiny816/TouchyTouch.h
@@ -122,13 +122,16 @@ class TouchyTouch
       digitalWrite(pin, HIGH);
       delayMicroseconds(CHARGE_MICROS);
       // set pad back to an input and take some samples
+      noInterrupts();
       pinMode(pin, INPUT);
       while ( digitalRead(pin) ) {
         if (ticks >= TIMEOUT_TICKS) {
+          interrupts();
           return TIMEOUT_TICKS;
         }
         ticks++;
       }
+      interrupts();
     }
     return ticks;
   }

Original file line number	Diff line number	Diff line change
`@@ -122,13 +122,16 @@ class TouchyTouch`
`122`	`122`	`digitalWrite(pin, HIGH);`
`123`	`123`	`delayMicroseconds(CHARGE_MICROS);`
`124`	`124`	`// set pad back to an input and take some samples`
	`125`	`+ noInterrupts();`
`125`	`126`	`pinMode(pin, INPUT);`
`126`	`127`	`while ( digitalRead(pin) ) {`
`127`	`128`	`if (ticks >= TIMEOUT_TICKS) {`
	`129`	`+ interrupts();`
`128`	`130`	`return TIMEOUT_TICKS;`
`129`	`131`	`}`
`130`	`132`	`ticks++;`
`131`	`133`	`}`
	`134`	`+ interrupts();`
`132`	`135`	`}`
`133`	`136`	`return ticks;`
`134`	`137`	`}`