79 lines
3.0 KiB
Bash
79 lines
3.0 KiB
Bash
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#!/bin/sh
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# @Param1 ina3221 data high 8bit
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# @Param2 ina3221 data high 8bit
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# @Param3 channel number
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# @Param4 mode select 0 - shunt volt
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# 1 - bus volt
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# @Param5 shunt resistor(only used in mode shunt volt)
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# @Param6 customization channel name
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convert_ina3221_data(){
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hex_value1=$(echo "$1" | awk '{sub(/^0x/,""); print}')
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hex_value2=$(echo "$2" | awk '{sub(/^0x/,""); print}')
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merge_value="${hex_value1}${hex_value2}"
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# bc calculator recognized upper case only, change data to upper case
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upper_hex_value=$(echo "$merge_value" | awk '{
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for(i=1; i<=length($0); i++){
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if(tolower(substr($0,i,1)) ~ /^[a-f]$/)
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printf toupper(substr($0,i,1));
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else
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printf substr($0,i,1);
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}
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print ""
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}')
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# change data from hex to dec
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dec_val=$(echo "ibase=16; $upper_hex_value" | bc)
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if [ $4 -eq $INA3221_BUS_VOLT ];then
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volt=$(echo "scale=4; $dec_val / 8 * 40 / 10000 * 2" | bc)
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format_volt=$(echo "$volt" | awk '{ if ($0 ~ /^\./) print "0" $0; else print $0 }')
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echo "$6 : $format_volt V, hex value: $upper_hex_value"
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if [ $3 -eq 0 ];then
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ina3221_ch0_volt=$format_volt
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elif [ $3 -eq 1 ];then
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ina3221_ch1_volt=$format_volt
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else
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ina3221_ch2_volt=$format_volt
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fi
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elif [ $4 -eq $INA3221_SHUNT_VOLT ];then
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current_mv=$(echo "scale=4; $dec_val / 8 * 40 / 1000" | bc)
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current=$(echo "scale=4; $current_mv / $5" | bc)
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format_current=$(echo "$current" | awk '{ if ($0 ~ /^\./) print "0" $0; else print $0 }')
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format_current_mv=$(echo "$current_mv" | awk '{ if ($0 ~ /^\./) print "0" $0; else print $0 }')
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echo "$6 : $format_current A, shunt volt: $format_current_mv mV, shunt resistor: $5 mOhm, hex value: $upper_hex_value"
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if [ $3 -eq 0 ];then
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ina3221_ch0_current=$format_current
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elif [ $3 -eq 1 ];then
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ina3221_ch1_current=$format_current
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else
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ina3221_ch2_current=$format_current
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fi
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elif [ $4 -eq $INA3221_POWER ];then
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# calculate power
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power_ch0=$(echo "scale=4; $ina3221_ch0_volt * $ina3221_ch0_current" | bc)
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power_ch1=$(echo "scale=4; $ina3221_ch1_volt * $ina3221_ch1_current" | bc)
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power_ch2=$(echo "scale=4; $ina3221_ch2_volt * $ina3221_ch2_current" | bc)
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format_power_ch0=$(echo "$power_ch0" | awk '{ if ($0 ~ /^\./) print "0" $0; else print $0 }')
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format_power_ch1=$(echo "$power_ch1" | awk '{ if ($0 ~ /^\./) print "0" $0; else print $0 }')
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format_power_ch2=$(echo "$power_ch2" | awk '{ if ($0 ~ /^\./) print "0" $0; else print $0 }')
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total_power=$(echo "scale=4; $power_ch0 + $power_ch1 + $power_ch2" | bc)
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echo "$INA3221_Channel0_name : $format_power_ch0 W"
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echo "$INA3221_Channel1_name : $format_power_ch1 W"
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echo "$INA3221_Channel2_name : $format_power_ch2 W"
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echo "total power: $total_power W"
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fi
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}
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convert_ina3221_data $1 $2 $3 $4 $5 $6
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