WorkFiles/YC1166_SDK_LED_Prj/cm0/Librarier/user/iic_driver.c

#include "iic_driver.h"
#define sm2315_en 1

#define SDA 25
#define SCL 24

#define IIC_HIGH (0x3f)
#define IIC_LOW  (0x3e)
		  
/*********************************************************
功能：延时
*********************************************************/
void iic_delay(char i)
{  	
   int y;
   for(;i>0;i--)
   for(y=2;y>0;y--)
	 {;;;;;}
}
/*********************************************************
功能：开始
*********************************************************/
void hal_iic_start(void)
{
	HWRITE(0x8080+SDA,IIC_HIGH);
	HWRITE(0x8080+SCL,IIC_HIGH);
	iic_delay(1);
	HWRITE(0x8080+SDA,IIC_LOW);
	iic_delay(1);
	HWRITE(0x8080+SCL,IIC_LOW);
}
/*********************************************************
功能：应答
*********************************************************/
void hal_iic_ack(void)
{
	HWRITE(0x8080+SCL,IIC_LOW);
	iic_delay(1);
	HWRITE(0x8080+SCL,IIC_HIGH);
	iic_delay(1);
	HWRITE(0x8080+SCL,IIC_LOW);
}
/*********************************************************
功能：停止
*********************************************************/
void hal_iic_stop(void)
{
	HWRITE(0x8080+SDA,IIC_LOW);
	HWRITE(0x8080+SCL,IIC_HIGH);
	iic_delay(1);
	HWRITE(0x8080+SDA,IIC_HIGH);
}
/*********************************************************
功能：写8位数据
*********************************************************/
void hal_iic_send_onebyte(unsigned char dat)
{
	unsigned char i;
	for(i=0;i<8;i++)
	{
		HWRITE(0x8080+SCL,IIC_LOW);
		if(dat&0x80)
				HWRITE(0x8080+SDA,IIC_HIGH);
		else
			HWRITE(0x8080+SDA,IIC_LOW);
		iic_delay(3);
		dat=dat<<1;
		HWRITE(0x8080+SCL,IIC_HIGH);
		iic_delay(3);
	}
	hal_iic_ack();
}
/*********************************************************
功能：写灰度位数据  
*********************************************************/
void hal_iic_send_grayscale_dat(unsigned short dat)
{
	hal_iic_send_onebyte( dat>>8) ;   
	hal_iic_send_onebyte( dat & 0xFF) ;
}
/*********************************************************
功能：指令1
*********************************************************/
void hal_iic_send_control_cmd(unsigned char com)
{
	hal_iic_stop();
	;;
	hal_iic_start();
	hal_iic_send_onebyte(com);
}

#if (sm2235_en==1)
#define sm2235_ch_addr 0xd8
#define sm2235_curr_val 0x69 //rgb=4.5w  24mA   c/w=50ma
//#define sm2235_curr_val 0xff
void hal_send_light_control_dataout(uint16_t red,uint16_t gree,uint16_t blue,uint16_t cool,uint16_t wwarm)
{
	hal_iic_send_control_cmd(sm2235_ch_addr);
	hal_iic_send_onebyte(sm2235_curr_val);
//	hal_iic_send_grayscale_dat(red); //跟手册rgb通道对应的参数值  可以兼容低压灯板
//	hal_iic_send_grayscale_dat(gree); 
//	hal_iic_send_grayscale_dat(blue);
  hal_iic_send_grayscale_dat(blue); //兼容我们的灯板控制顺序 
	hal_iic_send_grayscale_dat(gree);
	hal_iic_send_grayscale_dat(red);
	
	hal_iic_send_grayscale_dat(cool);
	hal_iic_send_grayscale_dat(wwarm);
  hal_iic_stop();
}
#endif

#if (sm2315_en==1)
#define sm2315_ch_addr 0xC0
#define sm2315_curr_val 0x3b //rgb=24ma cw=40ma
void hal_send_light_control_dataout(uint16_t red,uint16_t gree,uint16_t blue,uint16_t cool,uint16_t wwarm)
{
	hal_iic_send_control_cmd(sm2315_ch_addr);
	hal_iic_send_onebyte(sm2315_curr_val);
	if((blue==0&&gree==0&&red==0)&&cool==0&&wwarm==0)
	{
	  hal_iic_send_onebyte(0x20);//on待机功能
	}else{
	  hal_iic_send_onebyte(0x00);//关闭待机功能
	}
	
  hal_iic_send_onebyte(blue/4); //兼容我们的灯板控制顺序 
	hal_iic_send_onebyte(gree/4);
	hal_iic_send_onebyte(red/4);
	hal_iic_send_onebyte(cool/4);
	hal_iic_send_onebyte(wwarm/4);
  hal_iic_stop();
}
#endif