fingersensors.h File Reference

#include "t89c51cc02.h"
#include "datatypes.h"

Go to the source code of this file.

Defines
#define	FINGERSENSOR_COLUMN_SELECT0   P1_6
#define	FINGERSENSOR_COLUMN_SELECT1   P1_7
#define	Fingersensors_PowerOff()   FINGERSENSOR_COLUMN_SELECT0=0; FINGERSENSOR_COLUMN_SELECT1=0
#define	Fingersensors_SelectBank1()   FINGERSENSOR_COLUMN_SELECT0=1; FINGERSENSOR_COLUMN_SELECT1=0
#define	Fingersensors_SelectBank2()   FINGERSENSOR_COLUMN_SELECT0=0; FINGERSENSOR_COLUMN_SELECT1=1
#define	FINGERSENSORS_NR   4
Functions
void	Fingersensors_init (void)
	initializes fingersensors subsystem
void	Fingersensors_read (void)
	read all finger mounted force sensing resistors
Variables
WORD idata	fingersensors [FINGERSENSORS_NR]
	storage buffer for current fingersensor values

---

Detailed Description

Definition in file fingersensors.h.

---

Define Documentation

#define FINGERSENSOR_COLUMN_SELECT0   P1_6

port pin to access sensor matrix column 0 Definition at line 5 of file fingersensors.h.

#define FINGERSENSOR_COLUMN_SELECT1   P1_7

port pin to access sensor matrix column 1 Definition at line 7 of file fingersensors.h.

#define FINGERSENSORS_NR   4

number of mounted finger sensors Definition at line 16 of file fingersensors.h. Referenced by Fingersensors_init(), and main().

#define Fingersensors_PowerOff (   )     FINGERSENSOR_COLUMN_SELECT0=0; FINGERSENSOR_COLUMN_SELECT1=0

disables finger mounted sensors Definition at line 10 of file fingersensors.h. Referenced by Fingersensors_init(), and Fingersensors_read().

#define Fingersensors_SelectBank1 (   )     FINGERSENSOR_COLUMN_SELECT0=1; FINGERSENSOR_COLUMN_SELECT1=0

selects Bank 1 of the finger mounted sensors Definition at line 12 of file fingersensors.h. Referenced by Fingersensors_read().

#define Fingersensors_SelectBank2 (   )     FINGERSENSOR_COLUMN_SELECT0=0; FINGERSENSOR_COLUMN_SELECT1=1

selects Bank 2 of the finger mounted sensors Definition at line 14 of file fingersensors.h. Referenced by Fingersensors_read().

---

Function Documentation

void Fingersensors_init (  void   )

initializes fingersensors subsystem P1.1 and P1.2 are configured as valid analogue inputs for the subsystem. Definition at line 33 of file fingersensors.c. References fingersensors, FINGERSENSORS_NR, and Fingersensors_PowerOff. Referenced by main().

void Fingersensors_read (  void   )

read all finger mounted force sensing resistors The samples are saved into the buffer. (see fingersensors ) Definition at line 49 of file fingersensors.c. References ADC(), fingersensors, Fingersensors_PowerOff, Fingersensors_SelectBank1, and Fingersensors_SelectBank2. Referenced by main().

---

Variable Documentation

WORD idata fingersensors[FINGERSENSORS_NR]

storage buffer for current fingersensor values The buffer is located in indirect addressable IRAM of the T89C51CC02 Definition at line 26 of file fingersensors.c. Referenced by Fingersensors_init(), Fingersensors_read(), and main().

---