Notes14ADS7830

Posted 2021-10-28 码农编程录

文章目录

• 1.读ADS7830的8个channel电压：i2c-test -b 7 -s 0x71 -w -d 0x04

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1.读ADS7830的8个channel电压：i2c-test -b 7 -s 0x71 -w -d 0x04

如下1000 1100为六进制0x8c，十进制140。

如下从SD=1往下看，SD=0不用看。

cmd | (((ch >> 1) | (ch & 0x01) << 2) << 4); cmd =0x8c。

i2c-test -b 7 -s 0x48 -rc 1 -d 0x8c #显示十六进制0x57即十进制87。如下x=87*9766，divisor=1000。

#define DIV_ROUND_CLOSEST(x, divisor)({   //C文件                                                       
        typeof(x) __x = x;                                
        typeof(divisor) __d = divisor;                       
        (((typeof(x))-1) > 0 ||                               
         ((typeof(divisor))-1) > 0 ||                       
         (((__x) > 0) == ((__d) > 0))) ?                 
                (((__x) + ((__d) / 2)) / (__d)) :         
                (((__x) - ((__d) / 2)) / (__d));         
})

# Read_ADS7830_0x48_Voltage.sh
#!/bin/bash
DIV_ROUND_CLOSEST(){
    __x=$1
    __d=$2
    A=$(((__x) > 0))
    B=$(((__d) > 0))
    C=$(($__d>>1))
    C=$(($__x+$C))
    C=$(($C/$__d))
    D=$(($__d>>1))
    D=$(($__x+$D))
    D=$(($D/$__d))
    E=$(($A==$B))
    echo $(($E?$C:$D))
}

stop_ipmistack()
{
    cnt=0
    while true
    do
        /etc/init.d/ipmistack stop >/dev/null  2>&1
        s1=$(ps aux)
        s2="/usr/local/bin/IPMIMain"
        result=$(echo $s1 | grep "${s2}")
        if [[ "$result" == "" ]]
        then
            break
        fi
        if [ $cnt -eq 5 ]
        then
            echo "Unable to stop ipmistack !"
            exit 1
        fi
        cnt=$(($cnt+1))
        sleep 10
    done
}

delete()
{
    cnt=0
    while true
    do
        echo 0x73 > /sys/bus/i2c/devices/i2c-7/delete_device
        if [ $? = 0 ]
        then
            break
		    fi
        if [ $cnt -eq 5 ]
        then
          echo "Unable to delete device !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

access()
{
    cnt=0
    while true
    do
        i2c-test -b 7 -s 0x73 -w -d 0x08 >/dev/null 2>&1
        if [ $? = 0 ]
        then
            break
        fi
        if [ $cnt -eq 5 ]
        then
          echo "Unable to access 9545 !"
          exit 1
        fi
        cnt=$(($cnt+1))
        echo $cnt
    done
}

OpenChannel()
{
    cnt=0
    while true
    do
        i2c-test -b 7 -s 0x71 -w -d 0x04 >/dev/null 2>&1
        if [ $? = 0 ]
        then
            break
		    fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to access 9548 channel 3 !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel0(){
    cnt=0
    while true
    do
        val_0=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0x8c)
        if [ $? = 0 ]
        then
        #echo $val_0

        hex_0=${val_0:34:2}
        #echo $hex_0  #57

        dec_0=$((0x$hex_0 & 0xff))
        #echo $dec_0   #87

        dec_v_0=$((dec_0*9766))
        dec_v_v_0=$(DIV_ROUND_CLOSEST $dec_v_0 1000)
        echo "ADS7830 CH0:PFM8_VCC Voltage : "$dec_v_v_0"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel0 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel1(){
    cnt=0
    while true
    do
        val_1=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0xcc)
        if [ $? = 0 ]
        then

        hex_1=${val_1:34:2}
        #echo $hex_1

        dec_1=$((0x$hex_1 & 0xff))
        #dec_1=printf("%d\\n",hex_1)
        #echo $dec_1

        dec_v_1=$((dec_1*9766))
        dec_v_v_1=$(DIV_ROUND_CLOSEST $dec_v_1 1000)
        echo "ADS7830 CH1:P1V8_FM Voltage : "$dec_v_v_1"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel1 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel2(){
    cnt=0
    while true
    do
        val_2=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0x9c)
        if [ $? = 0 ]
        then

        hex_2=${val_2:34:2}
        #echo $hex_2   #57

        dec_2=$((0x$hex_2 & 0xff))
        #echo $dec_2

        dec_v_2=$((dec_2*9766))
        dec_v_v_2=$(DIV_ROUND_CLOSEST $dec_v_2 1000)
        echo "ADS7830 CH2:P0V6_VTT_CH01 Voltage : "$dec_v_v_2"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel2 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel3(){
    cnt=0
    while true
    do
        val_3=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0xdc)
        if [ $? = 0 ]
        then
        #echo 3
        #echo $val_3
        hex_3=${val_3:34:2}
        #echo $hex_3  #57

        dec_3=$((0x$hex_3 & 0xff))
        #echo $dec_3  #

        dec_v_3=$((dec_3*9766))
        dec_v_v_3=$(DIV_ROUND_CLOSEST $dec_v_3 1000)
        echo "ADS7830 CH3:P0V6_VTT_CH23 Voltage : "$dec_v_v_3"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel3 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel4(){
    cnt=0
    while true
    do
        val_4=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0xac)
        if [ $? = 0 ]
        then
        #echo 4
        #echo $val_4
        hex_4=${val_4:34:2}
        #echo $hex_4  #57

        dec_4=$((0x$hex_4 & 0xff))
        #echo $dec_4

        dec_v_4=$((dec_4*9766))
        dec_v_v_4=$(DIV_ROUND_CLOSEST $dec_v_4 1000)
        echo "ADS7830 CH4:P1V8_VCCFUSEWR_SDM Voltage : "$dec_v_v_4"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel4 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel5(){
    cnt=0
    while true
    do
        val_5=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0xec)
        if [ $? = 0 ]
        then
        #echo  5
        #echo $val_5
        hex_5=${val_5:34:2}
        #echo $hex_5  #57

        dec_5=$((0x$hex_5 & 0xff))
        #echo $dec_5

        dec_v_5=$((dec_5*9766))
        dec_v_v_5=$(DIV_ROUND_CLOSEST $dec_v_5 1000)
        echo "ADS7830 CH5:P1V8_IO Voltage : "$dec_v_v_5"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel5 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel6(){
    cnt=0
    while true
    do
        val_6=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0xbc)
        if [ $? = 0 ]
        then
        #echo 6
        hex_6=${val_6:34:2}
        #echo $hex_6  #57

        dec_6=$((0x$hex_6 & 0xff))
        #echo $dec_6  #

        dec_v_6=$((dec_6*9766))
        dec_v_v_6=$(DIV_ROUND_CLOSEST $dec_v_6 1000)
        echo "ADS7830 CH6:P0V8_VCCL_SDM Voltage : "$dec_v_v_6"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel6 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

read_channel7(){
    cnt=0
    while true
    do
        val_7=$(i2c-test -b 7 -s 0x48 -rc 1 -d 0xfc)
        if [ $? = 0 ]
        then
        #echo $val_7
        hex_7=${val_7:34:2}
        #echo $hex_7   #57

        dec_7=$((0x$hex_7 & 0xff))
        #echo $dec_7  #

        dec_v_7=$((dec_7*9766))
        dec_v_v_7=$(($(DIV_ROUND_CLOSEST $dec_v_7 1000)*2))
        echo "ADS7830 CH7:P3V3_EARLY Voltage : "$dec_v_v_7"mV"
              break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to read channel7 voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done
}

start_ipmistack()
{
    cnt=0
    while true
    do
        /etc/init.d/ipmistack start >/dev/null 2>&1
        s1=$(ps aux)
        s2="/usr/local/bin/IPMIMain"
        result=$(echo $s1 | grep "${s2}")
        if [[ "$result" != "" ]]
        then
            break
        fi

        if [ $cnt -eq 5 ]
        then
          echo "Unable to start ipmistack !"
          exit 1
        fi
        cnt=$(($cnt+1))
		    sleep 10
    done
}

start_ipmistack
stop_ipmistack
delete
access
OpenChannel
read_channel0
read_channel1
read_channel2
read_channel3
read_channel4
read_channel5
read_channel6
read_channel7
start_ipmistack