channel output disabled in non pwm-mode

pwmMode disables the channel output in non pwm modes.
Attached ISRs are left unchanged

Author: MicroBahner

STM32F1/cores/maple/stm32f1/wirish_digital_f1.cpp

@@ -79,10 +79,14 @@ void pinMode(uint8 pin, WiringPinMode mode) {
 
     gpio_set_mode(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit, outputMode);
 
-    if (pwm && PIN_MAP[pin].timer_device != NULL) {
-        /* Enable/disable timer channels if we're switching into PWM. */
+    if (PIN_MAP[pin].timer_device != NULL) {
+        if ( pwm ) { // we're switching into PWM, enable timer channels
         timer_set_mode(PIN_MAP[pin].timer_device,
                        PIN_MAP[pin].timer_channel,
                        TIMER_PWM );
+        } else {  // disable channel output in non pwm-Mode             
+            timer_cc_disable(PIN_MAP[pin].timer_device, 
+                            PIN_MAP[pin].timer_channel); 
+        }
     }
 }