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+--[[
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+@module spl06
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+@summary spl06_01 气压传感器
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+@version 1.0
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+@date 2022.08.01
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+@author Dozingfiretruck
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+@usage
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+--注意:因使用了sys.wait()所有api需要在协程中使用
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+-- 用法实例
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+local spl06 = require "spl06"
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+i2cid = 0
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+i2c_speed = i2c.FAST
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+sys.taskInit(function()
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+ i2c.setup(i2cid,i2c_speed)
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+ spl06.init(i2cid)--初始化,传入i2cid
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+ while 1 do
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+ local spl06_data = spl06.get_data()
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+ log.info("spl06_data", "spl06_data.P:"..(spl06_data.P*100),"spl06_data.T"..(spl06_data.T))
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+ sys.wait(1000)
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+ end
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+end)
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+]]
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+
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+
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+local spl06 = {}
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+local sys = require "sys"
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+local i2cid
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+
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+local SPL06_ADDRESS_ADR
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+local SPL06_ADDRESS_ADR_LOW = 0x76
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+local SPL06_ADDRESS_ADR_HIGH = 0x77
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+
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+---器件所用地址
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+local SPL06_CHIP_ID_CHECK = 0x0D
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+local SPL06_CHIP_ID = 0x10
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+
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+---i2c读数据
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+local function i2cRead(i2caddr,regaddr,size)
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+ ---读寄存器
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+ i2c.send(i2cid,i2caddr,regaddr)
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+ ---读数据
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+ --return string.toHex(i2c.recv(i2cId,i2caddr,size))
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+ local _,data = pack.unpack(i2c.recv(i2cid,i2caddr,size),'b1')
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+ return data
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+end
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+
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+---2个数据和3个数据的高低位顺序不一样---
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+---i2c读连续地址3个数据
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+local function i2cReadThreeData(i2caddr,regaddr)
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+ --log.info("i2cReadThreeData","addr:"..i2caddr.." reg:"..regaddr)
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+ local msb = i2cRead(i2caddr,regaddr,1)
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+ local lsb = i2cRead(i2caddr,regaddr+1,1)
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+ local xlsb = i2cRead(i2caddr,regaddr+2,1)
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+ if msb == "" or lsb == "" or xlsb == "" or msb == nil or lsb == nil or xlsb == nil then
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+ msb = 0
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+ lsb = 0
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+ xlsb = 0
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+ log.info("spl06 three data","the data is null")
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+ --return msb4096+lsb16+xlsb/16
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+ return msb<<16 + lsb<<8 + xlsb
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+ else
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+ --log.info("spl06 three data","msb:"..msb.." lsb:"..lsb.." xlsb:"..xlsb)
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+ if regaddr ==0x13 then
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+ return bit.lshift(msb,12) + bit.lshift(lsb,4) + bit.rshift((xlsb&0xF0),4)
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+ elseif regaddr ==0x15 then
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+ return bit.lshift((msb&0x0f),16) + bit.lshift(lsb,8) +xlsb
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+ else
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+ --return msb4096+lsb16+xlsb/16
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+ return bit.lshift(msb,16) + bit.lshift(lsb,8) + xlsb
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+ end
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+ end
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+end
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+
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+---i2c读连续地址2个数据
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+local function i2cReadTwoData(i2caddr,regaddr)
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+ local msb = i2cRead(i2caddr,regaddr,1)
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+ local lsb = i2cRead(i2caddr,regaddr+1,1)
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+ if lsb == "" or msb == "" or lsb == nil or msb == nil then
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+ msb = 0
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+ lsb = 0
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+ log.info("spl06 two data","the data is null")
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+ return msb256+lsb
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+ else
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+ --log.info("spl06 two data","msb:"..msb.." lsb:"..lsb)
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+ if regaddr ==0x10 then
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+ return msb16 + bit.rshift((lsb&0xF0),4)
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+ elseif regaddr ==0x11 then
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+ return (msb&0x0f)*256 + lsb
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+ else
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+ return msb*256+lsb
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+ end
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+ end
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+end
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+
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+
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+--器件ID检测
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+local function chip_check()
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR_HIGH, SPL06_CHIP_ID_CHECK)--读器件地址
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+ local revData = i2c.recv(i2cid, SPL06_ADDRESS_ADR_HIGH, 1)
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+ if revData:byte() ~= nil then
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+ SPL06_ADDRESS_ADR = SPL06_ADDRESS_ADR_HIGH
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+ else
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR_LOW, SPL06_CHIP_ID_CHECK)--读器件地址
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+ sys.wait(50)
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+ local revData = i2c.recv(i2cid, SPL06_ADDRESS_ADR_LOW, 1)
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+ if revData:byte() ~= nil then
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+ SPL06_ADDRESS_ADR = SPL06_ADDRESS_ADR_LOW
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+ else
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+ log.info("i2c", "Can't find adxl34x device")
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+ return false
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+ end
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+ end
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR, SPL06_CHIP_ID_CHECK)--读器件地址
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+ sys.wait(50)
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+ local revData = i2c.recv(i2cid, SPL06_ADDRESS_ADR, 1)
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+ if revData:byte() == SPL06_CHIP_ID then
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+ log.info("Device i2c id is: SPL06")
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+ else
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+ log.info("i2c", "Can't find SPL06 device")
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+ return false
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+ end
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+ return true
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+end
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+
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+--[[
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+spl06初始化
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+@api spl06.init(i2cid)
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+@number 所在的i2c总线id
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+@return bool 成功返回true
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+@usage
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+spl06.init(0)
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+]]
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+function spl06.init(i2cid)
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+ i2cid = i2c_id
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+ sys.wait(20)--20 毫秒等待设备稳定
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+ if chip_check() then
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR,{0x0c,0x89})--reset
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+ log.info("spl06 init_ok")
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+ sys.wait(20)
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+ return true
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+ end
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+ return false
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+end
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+
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+
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+--[[
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+获取spl06数据
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+@api spl06.get_data()
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+@return table spl06数据
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+@usage
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+local spl06_data = spl06.get_data()
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+log.info("spl06_data", "spl06_data.P:"..(spl06_data.P*100),"spl06_data.T"..(spl06_data.T))
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+]]
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+function spl06.get_data()
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+ local spl06_data={P=nil,T=nil}
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+ local Total_Number_24 = 16777216.0
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+ local Total_Number_20 = 1048576.0
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+ local Total_Number_16 = 65535.0
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+ local Total_Number_12 = 4096.0
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+ ---读取压力补偿值
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+ local C0 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x10)
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+ local C1 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x11)
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+ local C00 = i2cReadThreeData(SPL06_ADDRESS_ADR,0x13)
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+ local C10 = i2cReadThreeData(SPL06_ADDRESS_ADR,0x15)
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+ local C01 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x18)
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+ local C11 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x1a)
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+ local C20 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x1c)
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+ local C21 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x1e)
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+ local C30 = i2cReadTwoData(SPL06_ADDRESS_ADR,0x20)
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+ if C0>0x800 then
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+ C0 = C0 - Total_Number_12
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+ end
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+ if C1>0x800 then
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+ C1 = C1 - Total_Number_12
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+ end
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+ if C00>0x80000 then
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+ C00 = C00 - Total_Number_20
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+ end
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+ if C10>0x80000 then
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+ C10 = C10 - Total_Number_20
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+ end
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+ if C01>0x8000 then
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+ C01 = C01 - Total_Number_16
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+ end
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+ if C01>0x8000 then
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+ C11 = C11 - Total_Number_16
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+ end
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+ if C20>0x8000 then
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+ C20 = C20 - Total_Number_16
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+ end
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+ if C21>0x8000 then
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+ C21 = C21 - Total_Number_16
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+ end
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+ if C30>0x8000 then
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+ C30 = C30 - Total_Number_16
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+ end
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+ -- log.info("C0 is:",C0)
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+ -- log.info("C1 is:",C1)
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+ -- log.info("C00 is:",C00)
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+ -- log.info("C10 is:",C10)
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+ -- log.info("C01 is:",C01)
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+ -- log.info("C11 is:",C11)
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+ -- log.info("C20 is:",C20)
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+ -- log.info("C21 is:",C21)
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+ -- log.info("C30 is:",C30)
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+
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR,{0x06,0x73})--PRS_CFG PM_RATE_128,TMP_PRC_8
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR,{0x07,0xF3})--TMP_CFG PM_RATE_128,TMP_PRC_8
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+ -- id = i2cRead(SPL06_ADDRESS_ADR,0x09,1)
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+ -- log.info("spl06 id:",id)
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+ -- i2c.send(i2cid, SPL06_ADDRESS_ADR,{0x09,id|0x08})--oversampling times>8时必须使用
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+ i2c.send(i2cid, SPL06_ADDRESS_ADR,{0x08,0x07})--连续气压温度测量
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+ sys.wait(50)
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+
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+ local adc_P = i2cReadThreeData(SPL06_ADDRESS_ADR,0x00)
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+ local adc_T = i2cReadThreeData(SPL06_ADDRESS_ADR,0x03)
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+ if adc_P>0x800000 then
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+ adc_P = adc_P - Total_Number_24
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+ end
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+ if adc_T>0x800000 then
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+ adc_T = adc_T - Total_Number_24
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+ end
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+ --log.info("adc_P is:",adc_P)
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+ --log.info("adc_T is:",adc_T)
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+ if adc_P == 0 then
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+ log.info("adc_P is 0")
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+ return toint(9996),toint(9996)
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+ end
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+ if not adc_P then
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+ log.info("adc_P is nil")
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+ return toint(9996),toint(9996)
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+ end
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+
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+ local kP = 7864320
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+ local kT = 7864320
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+ local Praw_src = adc_P / kP
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+ local Traw_src = adc_T / kT
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+ --log.info("Traw_src is:",Traw_src)
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+ --log.info("Praw_src is:",Praw_src)
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+ --计算气压
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+ local qua2 = C10 + Praw_src * (C20 + Praw_src* C30)
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+ local qua3 = Traw_src * Praw_src * (C11 + Praw_src * C21)
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+ spl06_data.P = C00 + Praw_src * qua2 + Traw_src * C01 + qua3
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+ --计算温度
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+ spl06_data.T = C0*0.5 + Traw_src * C1
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+
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+ return spl06_data or 0
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+end
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+
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+return spl06
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+
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+
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