📄 touch.h
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/****************************************************************************
*****************************************************************************
By JJ
*****************************************************************************
****************************************************************************/
#ifndef __TOUCH_H
#define __TOUCH_H
#define NUM_samples 4
/*Type A I/O Control registers */
#define IO_Pull_up 0x0|(0x2<<3)|(0x5<<5) //Gpio pull-up
#define ADC_In (0x1)|(0x1<<3) //ADC Input
#define IO_No_UD (0x0)|(0x0<<3)|(0x5<<5) //Gpio no pull-up and pull-down
#define XR 12
#define XL 23
#define YU 25
#define YD 24
extern unsigned short x_vaule, y_vaule;
extern void touch_init(void);
extern void config_pins_x(void);
extern void config_pins_y(void);
extern unsigned short read_ch_x(void);
extern unsigned short read_ch_y(void);
extern unsigned char tmp;
#endif
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