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#include "bh1750.h"
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#include "sys.h"
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//д<EFBFBD><EFBFBD>
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void Single_Write_BH1750(unsigned char REG_Address)
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{
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MYIIC1_Start();
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MYIIC1_Send_Byte(BHAddWrite);
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MYIIC1_Send_Byte(REG_Address);
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MYIIC1_Stop();
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}
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//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void bh_data_send(u8 command)
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{
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do{
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MYIIC1_Start();
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MYIIC1_Send_Byte(BHAddWrite);
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}while(MYIIC1_Wait_Ack());
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MYIIC1_Send_Byte(command);
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MYIIC1_Wait_Ack();
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MYIIC1_Stop();
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}
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//<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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u16 bh_data_read(void)
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{
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u16 buf;
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u8 a;
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u8 b;
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MYIIC1_Start();
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MYIIC1_Send_Byte(BHAddRead);
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MYIIC1_Wait_Ack();
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b=MYIIC1_Read_Byte(1);
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a=MYIIC1_Read_Byte(0);
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buf=b*256+a;
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MYIIC1_Stop();
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return buf;
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}
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//<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
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void Init_BH1750(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOA, ENABLE);
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GPIO_InitStruct.GPIO_Pin = GPIO_Pin_12;
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GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
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GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOB,&GPIO_InitStruct);
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GPIO_InitStruct.GPIO_Pin = GPIO_Pin_8;
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GPIO_Init(GPIOA,&GPIO_InitStruct);
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Single_Write_BH1750(0x01);
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delay_ms(180);
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}
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