实验.DSP直流电机控制实验

和

口输出到直流电动机，从而改变其转速，通过 引脚上给出高

实

验

原

< br>理

电平或低电平和逻辑电路来控制直流电机的方向。

及调试：

进行分析，

理

出

完

成

实

验

的

设

计思路。

实验设计

（

2

）列出

设

计

所

需

的

特

殊

环

节

…

初始化

2.

电机使能

3.

键盘实时监测

4.

中断调用

--

--

（

3

）画出

设

计

流

程

图。

（

4

）调试

程序

#include

//

DSP281x

Headerfile

Include File

#include

//

DSP281x

Examples

Include File

// Prototype statements for functions found within this file.

interrupt void cpu_timer0_isr(void);

void Delay(unsigned int nTime);

void Gpio_select(void);

void error(int);

void program_stop();

void Gpio_PortA(void);

void Gpio_PortB(void);

void Gpio_PortF(void);

void Gpio_PortDEG(void);

--

--

char ConvertScanToChar(unsigned char cScanCode);

void RefreshLEDArray();

//

刷新显示

void SetLEDArray(int nNumber);

//

修改显示内容

#define T46uS

0x0d40

#define SCANCODE_0 0x70

#define SCANCODE_1 0x69

#define SCANCODE_2 0x72

#define SCANCODE_3 0x7A

#define SCANCODE_4 0x6B

#define SCANCODE_5 0x73

#define SCANCODE_6 0x74

#define SCANCODE_7 0x6C

#define SCANCODE_8 0x75

#define SCANCODE_9 0x7D

#define SCANCODE_Del 0x49

#define SCANCODE_Enter 0x5A

#define SCANCODE_Plus 0x79

#define SCANCODE_Minus 0x7B

#define SCANCODE_Mult 0x7C

#define SCANCODE_Divid 0x4A

#define SCANCODE_Num 0x77

#define CTRGR *(int *)0x108000

#define CTRLCDCMDR *(int *)0x108001

#define CTRKEY *(int *)0x108001

#define CTRLCDCR *(int *)0x108002

#define CTRCLKEY *(int *)0x108002

#define CTRLCDLCR

*(int *)0x108003

#define CTRLCDRCR *(int *)0x108004

#define CTRLA *(int *)0x108005

#define CTRLR *(int *)0x108007

Uint16 var1 = 0;

Uint16 var2 = 0;

Uint16 var3 = 0;

Uint16 test_count = 0;

Uint16 Test_flag = 0;

Uint16 Test_var

= 0;

Uint16 Test_status[32];

Uint16 PASS_flag = 0;

unsigned int uWork;

int jishu=0;

--

--

unsigned int uWork,nCount=0,uN,uN1,nCount1,nDir;

unsigned int uPort8000;

unsigned int nScreenBuffer[1024];

unsigned char ledbuf[8],ledx[8];

unsigned char ledkey[10][8]=

{

{0x00,0x00,0x7 C,0x82,0x82,0x82,0x7C,0x00},

{0x00,0x00,0x00,0x84,0xFE,0x80,0x00,0x00},

//1

{0x00,0x00,0 x84,0xC2,0xA2,0x92,0x8C,0x00},

//2

{0x00,0x00,0x44,0x92,0x92,0 x92,0x6C,0x00},

{0x00,0x00, 0x30,0x28,0x24,0xFE,0x20,0x00},

{0x00,0x00,0x4E,0x92,0x92,0x92,0x62,0x00},

{0x00,0x00,0x7C,0x92,0x92,0 x92,0x64,0x00},

{0x00,0x00, 0x02,0xC2,0x32,0x0A,0x06,0x00},

{0x00,0x00,0x6C,0x92,0x92,0x92,0x6C,0x00},

{0x00,0x00,0x4C,0x92,0x92,0 x92,0x7C,0x00}

};

void main(void)

{

//int nCount=0;

char cKey,cOldKey;

unsigned int nScanCode,nKeyCode;

unsigned int nSpeed;

// Step 1. Initialize System Control:

// PLL, WatchDog, enable Peripheral Clocks

// This example function is found in the DSP281x_SysCtrl.c file.

InitSysCtrl();

// Step 2. Initalize GPIO:

//

This

example

function

is

found

in

the

DSP281x_Gpio.c

file

and

// illustrates how to set the GPIO to it's default state.

// InitGpio();

// Skipped for this example

// Step 3. Clear all interrupts and initialize PIE vector table:

// Disable CPU interrupts

DINT;

// Initialize the PIE control registers to their default state.

// The default state is all PIE interrupts disabled and flags

--