595led.c

用ARM7 LPC2292芯片驱动240128图形点阵液晶的源代码

//========================================================================
// 文件名:  595LED.c
// 作  者: xinqiang Zhang(小丑)  (email: [e-mail])
// 日  期: 2007/06/29
// 描  述: 通过四个595，共两组，驱动12个LED数码管的显示驱动程序集
//
// 参  考: 无
// 版  本:
//      2007/06/29      First version    Mz Design
//========================================================================

#include "LPC213x.H"                        /* LPC21xx definitions */
#include "type.h"

#define SIOG0_SDA	1<<6
#define SIOG0_SCK	1<<4
#define SIOG0_LOCK	1<<7

#define SIOG1_SDA	1<<19
#define SIOG1_SCK	1<<17
#define SIOG1_LOCK	1<<18

#define SIO_LED_PORTSEL		PINSEL0
#define SIO_LED_PORTDIR		IODIR0
#define SIO_LED_PORTSET		IOSET0
#define SIO_LED_PORTCLR		IOCLR0

unsigned char LED_Show_Seg[12];				//12个LED的段码显示数据，每个char 表示一个LED数码管的
unsigned char LED_Seg_Mask[12];				//12个数码管的掩膜数据，用在控制哪个管亮或者不亮的控制
											//数码管闪烁时用
unsigned char LED_RG_flag=0;				//红绿两个数码管的显示控制，第7和第6位有效
unsigned char LED_Show_Com=1;				//数码管扫描显示公共端控制(0x01~0x20)
unsigned char LED_Show_Index=0;

//unsigned int LED_Flash_flag = 0;			//LED数码管闪烁标识，从第0位开始每一个位对应一个数码管
unsigned char LED_Flash_Mask[12]=
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

const unsigned char LEDSegTable[15]={0xbb,0x0a,0xd9,0x5b,0x6a,0x73,0xf3,0x1a,0xfb,0x7b,0x04,0x00,0xf0,0x40,0xf1};
//0,1,2,3,4,5,6,7,8,9,., ,F,-,E// 


void SIOLED_Initial(void)
{
	unsigned char i=0;
	PINSEL0 &= ~0x0c00f300;//
	PINSEL1 &= ~0x000003f0;//
	IODIR0 |= (SIOG0_SDA|SIOG0_SCK|SIOG0_LOCK|SIOG1_SDA|SIOG1_SCK|SIOG1_LOCK)+(1<<13);
	IOSET0 = (SIOG0_SDA|SIOG0_SCK|SIOG0_LOCK|SIOG1_SDA|SIOG1_SCK|SIOG1_LOCK);
	for(i=0;i<12;i++)
	{
		LED_Seg_Mask[i] = 0xff;
		LED_Show_Seg[i] = LEDSegTable[0];
	}
/*	LED_Show_Seg[0] = 0x01;
	LED_Show_Seg[1] = 0x01<<1;
	LED_Show_Seg[2] = 0x01<<2;
	LED_Show_Seg[3] = 0x01<<3;
	LED_Show_Seg[4] = 0x01<<4;
	LED_Show_Seg[5] = 0x01<<5;
	LED_Show_Seg[6] = 0x01<<6;
	LED_Show_Seg[7] = 0x01<<7;	*/
}

void SIOLED_G0Send(unsigned int SIO_D0)
{
	unsigned char i;//
	SIO_LED_PORTCLR = SIOG0_LOCK;
	for(i=0;i<16;i++)
	{
		SIO_LED_PORTCLR = SIOG0_SCK;
		if(SIO_D0&0x8000)
		{
			SIO_LED_PORTSET = SIOG0_SDA; 
		}//
		else
		{
			SIO_LED_PORTCLR = SIOG0_SDA;
		}
		SIO_LED_PORTSET = SIOG0_SCK;
		SIO_D0 = SIO_D0<<1;
	}
	SIO_LED_PORTSET = SIOG0_LOCK;
}

void SIOLED_G1Send(unsigned char SIO_D1)
{
	unsigned char i;//
	SIO_LED_PORTCLR = SIOG1_LOCK;
	for(i=0;i<8;i++)
	{
		SIO_LED_PORTCLR = SIOG1_SCK;
		if(SIO_D1&0x80)
		{
			SIO_LED_PORTSET = SIOG1_SDA; 
		}//
		else
		{
			SIO_LED_PORTCLR = SIOG1_SDA;
		}
		SIO_LED_PORTSET = SIOG1_SCK;
		SIO_D1 = SIO_D1<<1;
	}
	SIO_LED_PORTSET = SIOG1_LOCK;
}
//
//==============================================================================//
unsigned int Flash_Counter=0;
unsigned char LED_Flash_flag_All=0;
unsigned char LED_Flash_Counter = 0;
void LEDFlash_Serive(void)
{
	unsigned char i;
	Flash_Counter++;
	if(Flash_Counter>=200)
	{
		Flash_Counter=0;
		LED_Flash_Counter--;
		if(LED_Flash_Counter==0)
		{
			LED_Flash_flag_All=0;
			for(i=0;i<12;i++)
			{
				LED_Flash_Mask[i] = 0x00;
				LED_Seg_Mask[i] = 0xff;
			}
		}
		else 
			for(i=0;i<12;i++)
				LED_Seg_Mask[i] ^= LED_Flash_Mask[i];
	}
}
void SIOLED_Service(void)
{
	unsigned int uiTemp=0;
	unsigned char ucTemp=0;
	if(LED_Flash_flag_All!=0)
	{
		LEDFlash_Serive();
	}
	uiTemp = (LED_Show_Seg[LED_Show_Index]&LED_Seg_Mask[LED_Show_Index])|
			((LED_Show_Seg[LED_Show_Index+6]&LED_Seg_Mask[LED_Show_Index+6])<<8);//
	SIOLED_G0Send(uiTemp^0xffff);//
	ucTemp = LED_Show_Com|LED_RG_flag;
	ucTemp = ucTemp^0x3f;
	SIOLED_G1Send(ucTemp);
	LED_Show_Index++;
	if(LED_Show_Index>=6) LED_Show_Index=0;
	LED_Show_Com = LED_Show_Com<<1;
	if(LED_Show_Com>0x20) LED_Show_Com = 0x01;

}

void RGLED_Switch(unsigned char Light_RG)
{
	switch(Light_RG)
	{
		case 0:
			LED_RG_flag = 0;
			break;
		case 1:
			LED_RG_flag = 0x40;
			break;
		case 2:
			LED_RG_flag = 0x80;
			break;
		default:break;
	}
}

void Flash_LED(unsigned char LED_Nor,unsigned char ON_OFF)
{
	if(ON_OFF)
	{
//		LED_Flash_flag |= 1<<LED_Nor;
		LED_Flash_Mask[LED_Nor]=0xff;
//		LED_Flash_flag |= 1<<LED_Nor;
	}
	else
	{
//		LED_Flash_flag &= ~(1<<LED_Nor);
		LED_Flash_Mask[LED_Nor] = 0x00;
		LED_Seg_Mask[LED_Nor] = 0xff;
//		LED_Flash_flag &= ~(1<<LED_Nor);
	}	
}
void Flash_LED_SetTimer(unsigned char F_Timers)
{
	if(F_Timers!=0)
	{
		LED_Flash_Counter = F_Timers;
		LED_Flash_flag_All=1;
	}
}

void SetShow_LED(unsigned char LED_Index,unsigned char Show_Data)
{
	if(Show_Data&0x10)
	{
		LED_Show_Seg[LED_Index] = LEDSegTable[Show_Data&0x0f];
		LED_Show_Seg[LED_Index] |= LEDSegTable[10];
	}
	else LED_Show_Seg[LED_Index] = LEDSegTable[Show_Data];//
}