关于DSP TMS320 F28035的按键驱动程序
关于DSP TMS320 F28035的按键驱动程序[*]/************************************
[*] 标题：key.h
[*] 软件平台：DSP.com/forum.php?mod=forumdisplay&fid=58" target="_blank" class="relatedlink">CCS v5.2
[*] 硬件平台：毕设控制板
[*] 主频：60M
[*]
[*] author：小船
[*] data：2013-02-23
[*]*************************************/
[*]#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_ */
[*]
[*]/************************************
[*] 标题：key.c
[*] 软件平台：CCS v5.2
[*] 硬件平台：毕设控制板
[*] 主频：60M
[*]
[*] author：小船
[*] data：2013-02-23
[*]*************************************/
[*]#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); //除能上拉电阻
[*] GpioCtrlRegs.GPADIR.all &= (~0x00091040); //输入
[*] 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
[*] GpioCtrlRegs.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;
[*]}
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