#模块驱动例程#1.战舰以及战舰MINI板驱动TM1637数码模块

秋水之下回答时间：2015-11-27 10:41:06

/******************************Copyright (c)***********************************
*             Jiangsu Zhihai Electronic Technology Co., Ltd.
*                   Research & Development Department
*
* www.smarthealth-tech.com
*
-------------------------------------------------------------------------------
* @file TM1637.h
* @author  GU DONGDONG
* @date 2015-11-25
*******************************************************************************/
#include "TM1637.h"
#include "delay.h"
/** Write multiple bits in an 8-bit device register.
* @param slaveAddr I2C slave device address
* @param regAddr Register regAddr to write to
* @param bitStart First bit position to write (0-7)
* @param length Number of bits to write (not more than 8)
* @param data Right-aligned value to write
*/
void TM1637_Delay_us(unsigned  int Nus)
{
for(;Nus>0;Nus--)
{
   __nop();
     __nop();
__nop();
__nop();
__nop();
__nop();
__nop();
__nop();
__nop();
__nop();
__nop();
}
}
//#define TM1637_CLK_Low() GPIO_ResetBits(GPIOC,GPIO_Pin_2)
//#define TM1637_CLK_High() GPIO_SetBits(GPIOC,GPIO_Pin_2)
//#define TM1637_DIO_Low() GPIO_ResetBits(GPIOC,GPIO_Pin_3)
//#define TM1637_DIO_High() GPIO_SetBits(GPIOC,GPIO_Pin_3)
void TM1637_Start(void)
{
TM1637_DIO_OUT();
  TM1637_CLK = 1;
TM1637_DIO = 1;
delay_us(2);
TM1637_DIO = 0;
}
void TM1637_Ack(void)
{
TM1637_DIO_IN();
  TM1637_CLK = 0;
TM1637_Delay_us(5);
while(TM1637_READ_DIO);
TM1637_CLK = 1;
delay_us(2);
TM1637_CLK = 0;
}
void TM1637_Stop(void)
{
TM1637_DIO_OUT();
TM1637_CLK = 0;
delay_us(2);
TM1637_DIO = 0;
delay_us(2);
TM1637_CLK = 1;
delay_us(2);
TM1637_DIO = 1;
}
void TM1637_WriteByte(unsigned char oneByte)
{
unsigned char i;
TM1637_DIO_OUT();
for(i=0;i<8;i++)
{
   TM1637_CLK = 0;
if(oneByte&0x01)
{
TM1637_DIO = 1;
}
else
{
TM1637_DIO = 0;
}
delay_us(3);
oneByte=oneByte>>1;
TM1637_CLK = 1;
delay_us(3);
}
}

unsigned char TM1637_ScanKey(void)
{
unsigned char reKey,i;
TM1637_Start();
TM1637_WriteByte(0x42);
TM1637_Ack();
TM1637_DIO = 1;
TM1637_DIO_IN();
for(i=0;i<8;i++)
{
   TM1637_CLK = 0;
reKey=reKey>>1;
delay_us(30);
TM1637_CLK = 1;
if(TM1637_READ_DIO)
{
   reKey=reKey|0x80;
}
else
{
   reKey=reKey|0x00;
}
delay_us(30);
}
  TM1637_Ack();
TM1637_Stop();
return(reKey);
}
void TM1637_NixieTubeDisplay(void)
{
unsigned char i;
TM1637_Start();
TM1637_WriteByte(0x40);
TM1637_Ack();
TM1637_Stop();
TM1637_Start();
TM1637_WriteByte(0xC0);
TM1637_Ack();

for(i=0;i<6;i++)
{
TM1637_WriteByte(0xff);
TM1637_Ack();
}
TM1637_Stop();
TM1637_Start();
TM1637_WriteByte(0x8f);
TM1637_Ack();
TM1637_Stop();
}

void TM1637_Init(void)
{

GPIO_InitTypeDef  GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);

}

/******************************Copyright (c)***********************************
*             Jiangsu Zhihai Electronic Technology Co., Ltd.
*                   Research & Development Department
*
* www.smarthealth-tech.com
*
-------------------------------------------------------------------------------
* @file TM1637.h
* @author  GU DONGDONG
* @date 2015-11-25
*******************************************************************************/
#ifndef TM1637_H
#define TM1637_H

#include "sys.h"

#define TM1637_CLK          PCout(2)
#define TM1637_DIO          PCout(3)
#define TM1637_READ_DIO    PCin(3)

//IO方向设置
#define TM1637_DIO_IN()    {GPIOC->CRL&=0XFFFF0FFF;GPIOC->CRL|=8<<12;}
#define TM1637_DIO_OUT() {GPIOC->CRL&=0XFFFF0FFF;GPIOC->CRL|=3<<12;}

void TM1637_Delay_us(unsigned  int Nus);
void TM1637_Start(void);
void TM1637_Ack(void);
void TM1637_Stop(void);
void TM1637_WriteByte(unsigned char oneByte);
unsigned char TM1637_ScanKey(void);
void TM1637_NixieTubeDisplay(void);

void TM1637_Init(void);
void TM1637LED_Init(void);

#endif

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