changed GPIO used for raspi shutdown, added documentation

ADIS_tinyK22_RpiHat/raspi-overlayconfig.txt

@@ -0,0 +1,11 @@
+To use GPIO shutdown for the Raspberry Pi, add following lines in the file /boot/config.txt
+edit file: sudo nano /boot/config.txt
+
+# signal power off with green led
+dtoverlay=gpio-poweroff,gpiopin=16
+
+# shutdown Pi when joystick button is pressed
+dtoverlay=gpio-shutdown,gpio_pin=26,gpio-pull=up
+
+# shutdown Pi when GPIO GP0 on Hat is set to low
+dtoverlay=gpio-shutdown,gpio_pin=17

ADIS_tinyK22_RpiHat/source/application.c

@@ -44,9 +44,9 @@ void App_Init(void){
 	/* configure gpio raspi power disable */
 	McuGPIO_Config_t config_gpio;
 	McuGPIO_GetDefaultConfig(&config_gpio);
-	config_gpio.hw.gpio = GPIOD;
+	config_gpio.hw.gpio = GPIOA;
-	config_gpio.hw.port = PORTD;
+	config_gpio.hw.port = PORTA;
-	config_gpio.hw.pin = 6U;
+	config_gpio.hw.pin = 1U;
 	GPIO_PowerRaspi = McuGPIO_InitGPIO(&config_gpio);
 
 	// get the event queue handle from debounce