Simple---a TMS320F28035 key driver

火辣西米秀

Simple---a TMS320F28035 key driver [Copy link]

/************************************
标题：key.h
软件平台：CCS v5.2
硬件平台：毕设控制板
主频：60M
*************************************/
#ifndef KEY_H_
#define KEY_H_

#include "PeripheralHeaderIncludes.h"
#include <stdio.h>

#define delay_cheak 15000

#define KEY1 1
#define KEY2 2
#define KEY3 3
#define KEY4 4
#define noKEY 0

#define KEY1_on GpioDataRegs.GPADAT.bit.GPIO19 == 0
#define KEY2_on GpioDataRegs.GPADAT.bit.GPIO6 == 0
#define KEY3_on GpioDataRegs.GPADAT.bit.GPIO12 == 0
#define KEY4_on GpioDataRegs.GPADAT.bit.GPIO16 == 0
#define KEYs_on (GpioDataRegs.GPADAT.all & 0x00091040) != 0x00091040

extern void (*key1_handle)();
extern void (*key2_handle)();
extern void (*key3_handle)();
extern void (*key4_handle)();

void KEY_init(void (*key1_dle)(), void (*key2_dle)(), void (*key3_handle)(), void (*key4_dle)());
char KEY_scanf_handle();

#endif /* KEY_H_ */

/************************************
Title: key.cSoftware
Platform: CCS v5.2Hardware
Platform: Bishe Control BoardMain
Frequency: 60M


********/
#include "key.h"

void (*key1_handle) () = NULL;
void (*key2_handle) () = NULL;
void (*key3_handle) () = NULL;
void (*key4_handle) () = NULL;

void KEY_init(void (*key1_dle)(), void (*key2_dle)(), void (*key3_dle)(), void (*key4_dle)())
{
EALLOW;

GpioCtrlRegs.GPAPUD.all &= (~0x00091040); //Disable pull-up resistor
GpioCtrlRegs.GPADIR.all &= (~0x00091040); //Input
GpioCtrlRegs.GPAMUX2.bit.GPIO19 = 0; //GPIO19
GpioCtrlRegs.GPAQSEL2.bit.GPIO19 = 2; // 6 samples

GpioCtrlRegs.GPAMUX1.bit.GPIO6 = 0; //GPIO6
GpioCtrlRegs.GPAQSEL1.bit.GPIO6 = 2; // 6 samples

GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 0; //GPIO12
Gpio CtrlRegs.GPAQSEL1.bit.GPIO12 = 2; // 6 samples

GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 0; //GPIO16
GpioCtrlRegs.GPAQSEL2.bit.GPIO16 = 2; // 6 samples

EDIS;

GpioDataRegs.GPASET.all |= 0x00091040;

key1_handle = key1_ dle;
key2_handle = key2_dle;
key3_handle = key3_dle;
key4_handle = key4_dle;
}

char KEY_scanf_handle()
{
char KEY_mun = 0;
if(KEYs_on)
{
DELAY_US(delay_cheak);
if(KEYs_on)
{
if(KEY1_on)
{
(*key1_handle)();
KEY_mun = KEY1;
}
if(KEY2_on)
{
(*key2_handle)();
KEY_mun = KEY2;
}
if(KEY3_on)
{
(*key3_handle)();
KEY_mun = KEY3;
}
if(KEY4_on)
{
(*key4_handle)();
KEY_mun = KEY4;
}
}
}
return KEY_mun;
}