FlagStatus isTouched() {
	GPIO_InitTypeDef gpio;
	gpio.GPIO_Speed = GPIO_Speed_50MHz;

	gpio.GPIO_Pin = TOUCH_PIN_X1;
	gpio.GPIO_Mode = GPIO_Mode_IPU;
	GPIO_Init(TOUCH_PORT, &gpio);

	gpio.GPIO_Pin = TOUCH_PIN_Y1 | TOUCH_PIN_X2;
	gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_Init(TOUCH_PORT, &gpio);

	gpio.GPIO_Pin = TOUCH_PIN_Y2;
	gpio.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_Init(TOUCH_PORT, &gpio);
	TOUCH_PORT->BRR = TOUCH_PIN_Y2;

	delay_ms(1);

	if (TOUCH_PORT->IDR & TOUCH_PIN_X1) {
		return RESET;
	}
	delay_ms(1);
	return TOUCH_PORT->IDR & TOUCH_PIN_X1 ? RESET : SET;
}

uint16_t getTouchValue() {
	ADC_SoftwareStartConvCmd(TOUCH_ADC, ENABLE);
	while (ADC_GetFlagStatus(TOUCH_ADC, ADC_FLAG_EOC) == RESET);
	return ADC_GetConversionValue(TOUCH_ADC);
}

uint16_t TouchModeReadX() {
	GPIO_InitTypeDef gpio;
	gpio.GPIO_Speed = GPIO_Speed_50MHz;

	gpio.GPIO_Pin = TOUCH_PIN_X1 | TOUCH_PIN_X2;
	gpio.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_Init(TOUCH_PORT, &gpio);
	TOUCH_PORT->BSRR = TOUCH_PIN_X1 | (TOUCH_PIN_X2 << 16);

	gpio.GPIO_Pin = TOUCH_PIN_Y2;
	gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_Init(TOUCH_PORT, &gpio);

	gpio.GPIO_Pin = TOUCH_PIN_Y1;
	gpio.GPIO_Mode = GPIO_Mode_AF_OD;
	GPIO_Init(TOUCH_PORT, &gpio);
	delay_ms(1);
	return getTouchValue();
}

uint16_t TouchModeReadY() {
	GPIO_InitTypeDef gpio;
	gpio.GPIO_Speed = GPIO_Speed_50MHz;

	gpio.GPIO_Pin = TOUCH_PIN_Y1 | TOUCH_PIN_Y2;
	gpio.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_Init(TOUCH_PORT, &gpio);
	TOUCH_PORT->BSRR = TOUCH_PIN_Y1 | (TOUCH_PIN_Y2 << 16);

	gpio.GPIO_Pin = TOUCH_PIN_X2;
	gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_Init(TOUCH_PORT, &gpio);

	gpio.GPIO_Pin = TOUCH_PIN_X1;
	gpio.GPIO_Mode = GPIO_Mode_AF_OD;
	GPIO_Init(TOUCH_PORT, &gpio);
	delay_ms(1);
	return getTouchValue();
}

uint16_t touchX = 0, touchY = 0;
uint8_t _touched = 0;
inline void TouchUpdate() {
	if (!isTouched())
		return;
	_touched = 1;
	touchX = TouchModeReadX();
	touchY = TouchModeReadY();
}