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Update BH1750.c

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This commit is contained in:
David Lin
2021-01-14 21:02:54 +08:00
committed by GitHub
parent 81d576b988
commit 53874f055d
1 changed files with 19 additions and 19 deletions
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38
board/TencentOS_tiny_EVB_MX_Plus/BSP/Hardware/BH1750/BH1750.c
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@@ -9,10 +9,10 @@ int result;
/***************************************************************
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: Init_BH1750
* ˵ <EFBFBD><EFBFBD>: д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>BH1750
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: <20><>
* <EFBFBD><EFBFBD> <20><> ֵ: <20><>
* 函数名称: Init_BH1750
* 说 明: 写命令初始化BH1750
* 参 数: 无
* 返 回 值: 无
***************************************************************/
void Init_BH1750(void)
{
@@ -21,10 +21,10 @@ void Init_BH1750(void)
}
/***************************************************************
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: Start_BH1750
* ˵ <EFBFBD><EFBFBD>: <20><><EFBFBD><EFBFBD>BH1750
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: <20><>
* <EFBFBD><EFBFBD> <20><> ֵ: <20><>
* 函数名称: Start_BH1750
* 说 明: 启动BH1750
* 参 数: 无
* 返 回 值: 无
***************************************************************/
void Start_BH1750(void)
{
@@ -35,19 +35,19 @@ void Start_BH1750(void)
/***************************************************************
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: Convert_BH1750
* ˵ <EFBFBD><EFBFBD>: <20><>ֵת<D6B5><D7AA>
* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: <20><>
* <EFBFBD><EFBFBD> <20><> ֵ: <20><>ǿֵ
* 函数名称: Convert_BH1750
* 说 明: 数值转换
* 参 数: 无
* 返 回 值: 光强值
***************************************************************/
float Convert_BH1750(void)
{
Start_BH1750();
HAL_Delay(180);
HAL_I2C_Master_Receive(&hi2c1, BH1750_Addr+1,BUF,2,0xff);
result=BUF[0];
result=(result<<8)+BUF[1]; //<EFBFBD>ϳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
result_lx=(float)(result/1.2);
return result_lx;
Start_BH1750();
HAL_Delay(180);
HAL_I2C_Master_Receive(&hi2c1, BH1750_Addr+1,BUF,2,0xff);
result=BUF[0];
result=(result<<8)+BUF[1]; //合成数据，即光照数据
result_lx=(float)(result/1.2);
return result_lx;
}