Notes15INA220，PXE1410CDM
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1.读INA220电压和电流
# Read_INA220_Voltage_Current.sh
#!/bin/bash
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-3/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 3 -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 3 -s 0x71 -w -d 0x02 >/dev/null 2>&1
if [ $? = 0 ]
then
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to access 9548 channel2 !"
exit 1
fi
cnt=$(($cnt+1))
done
}
read_voltage(){
cnt=0
while true
do
val_v=$(i2c-test -b 3 -s 0x41 -m 1 -rc 2 -d 0x02)
if [ $? = 0 ]
then
#echo $val_v #08 aa
hexval_v_h=${val_v:14:2}
hexval_v_l=${val_v:17:2}
hexval_v=${hexval_v_h}${hexval_v_l}
dec_v_v=$((0x$hexval_v>>3))
dec_v_v=$(($dec_v_v<<2))
echo "INA220 Voltage : "$dec_v_v"mV"
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to read INA220 voltage !"
exit 1
fi
cnt=$(($cnt+1))
done
}
DIV_ROUND_CLOSEST(){
if [ $# -ne 2 ]
then
echo 0
else
__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))
fi
}
Read_Reg()
{
val=$(i2c-test -b 3 -s 0x41 -m 1 -rc 2 -d $1)
val_h=${val:14:2}
val_l=${val:17:2}
val=${val_h}${val_l}
echo $val
}
start_ipmistack()
{
cnt=0
while true
do
/etc/init.d/ipmistack start >/dev/null 2>&1
s1=$(ps aux)
s2="/usr/local/bin/IPMIMain"
result=$(echo $s1 | grep "${s2}")
if [[ "$result" != "" ]]
then
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to start ipmistack !"
exit 1
fi
cnt=$(($cnt+1))
sleep 10
done
}
start_ipmistack
stop_ipmistack
delete
access
OpenChannel
read_voltage
i2c-test -b 3 -s 0x41 -w -d 0x05 0x03 0x7f >/dev/null 2>&1
config_shunt_div=100
dividend=$(DIV_ROUND_CLOSEST 1000000000 $config_shunt_div)
shunt_val=$(Read_Reg 0x01)
#echo "shunt_val" $shunt_val
current_lsb_uA=$(DIV_ROUND_CLOSEST $dividend 0x$shunt_val)
#echo "current_lsb_uA" $current_lsb_uA
current_val=$(Read_Reg 0x04)
#echo "current_val" $current_val
ret=$((0x$current_val * $current_lsb_uA))
#echo $ret
ret=$(DIV_ROUND_CLOSEST $ret 1000)
echo "INA220 Current : "$ret"mA"
start_ipmistack
2.读PXE1410CDM电压和电流
如下是c语言的线性转换，0x0184十六进制输出为十进制388。
如下用arm编译器（不是x86的gcc）编译成current可执行文件。
//current.c
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char ** argv)
{
short exponent;
int mantissa;
int val_x;
mantissa = (((strtoul(argv[1],0,0) & 0x7ff) << 5)) >> 5;
// printf("%x\\n",mantissa);
exponent = ((signed short)strtoul(argv[1],0,0))>>11;
// printf("%d\\n",exponent);
val_x = mantissa * 1000L;
if (exponent >= 0)
val_x <<= exponent;
else
val_x >>= -exponent;
printf("%d\\n",val_x);
return 0;
}
# Read_PXE1410CDM_0X62_Voltage_Current.sh
#!/bin/bash
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 $cnt
echo "Unable to access 9545 !"
exit 1
fi
cnt=$(($cnt+1))
echo $cnt
done
}
OpenChannel()
{
cnt=0
while true
do
i2c-test -b 7 -s 0x71 -w -d 0x80 >/dev/null 2>&1
if [ $? = 0 ]
then
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to access 9548 channel2 !"
exit 1
fi
cnt=$(($cnt+1))
done
}
write_ch0()
{
cnt=0
while true
do
i2c-test -b 7 -s 0x60 -w -d 0x0 0x00 >/dev/null 2>&1
if [ $? = 0 ]
then
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to write PXE CH0!"
exit 1
fi
cnt=$(($cnt+1))
done
}
read_ch0_voltage(){
cnt=0
while true
do
val_v_0=$(i2c-test -b 7 -s 0x60 -m 1 -rc 2 -d 0x8b)
if [ $? = 0 ]
then
hex_v_h_0=${val_v_0:14:2}
hex_v_l_0=${val_v_0:17:2}
hex_v_0=${hex_v_l_0}${hex_v_h_0}
dec_v_0=$((0x$hex_v_0 & 0xff))
#echo $dec_v_0
dec_v_0=$(((500 + (dec_v_0 - 1) * 10)/2))
echo "PXE_0x60_0_P0V9_VCCH Voltage : "$dec_v_0"mV"
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to read ch0 voltage !"
exit 1
fi
cnt=$(($cnt+1))
done
}
read_ch0_current(){
cnt=0
while true
do
val_a_0=$(i2c-test -b 7 -s 0x60 -m 1 -rc 2 -d 0x8c)
if [ $? = 0 ]
then
hex_a_h_0=${val_a_0:14:2}
hex_a_l_0=${val_a_0:17:2}
hex_a_0=${hex_a_l_0}${hex_a_h_0}
dec_a_0=$(./current 0x$hex_a_0)
echo "PXE_0x60_0 Current : "$dec_a_0"mA"
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to read ch0 current !"
exit 1
fi
cnt=$(($cnt+1))
done
}
write_ch1()
{
cnt=0
while true
do
i2c-test -b 7 -s 0x60 -w -d 0x0 0x01 >/dev/null 2>&1
if [ $? = 0 ]
then
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to write PXE CH1!"
exit 1
fi
cnt=$(($cnt+1))
done
}
read_ch1_voltage(){
cnt=0
while true
do
val_v_1=$(i2c-test -b 7 -s 0x60 -m 1 -rc 2 -d 0x8b)
if [ $? = 0 ]
then
hex_v_1_h=${val_v_1:14:2}
hex_v_1_l=${val_v_1:17:2}
hex_v_1=${hex_v_1_l}${hex_v_1_h}
dec_v_1=$((0x$hex_v_1 & 0xff))
dec_v_1=$(((500 + (dec_v_1 - 1) * 10)/2))
echo "PXE_0x60_1_P1V2_VDDQ_CH01 Voltage : "$dec_v_1"mV"
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to read ch1 voltage !"
exit 1
fi
cnt=$(($cnt+1))
done
}
read_ch1_current(){
cnt=0
while true
do
val_a_1=$(i2c-test -b 7 -s 0x60 -m 1 -rc 2 -d 0x8c)
if [ $? = 0 ]
then
hex_a_1_h=${val_a_1:14:2}
hex_a_1_l=${val_a_1:17:2}
hex_a_1=${hex_a_1_l}${hex_a_1_h}
dec_a_1=$(./current 0x$hex_a_1)
echo "PXE_0x60_1 Current : "$dec_a_1"mA"
break
fi
if [ $cnt -eq 5 ]
then
echo "Unable to read ch1 current !"
exit 1
fi
cnt=$(($cnt+1))
done
}
start_ipmistack()
{
cnt=0
while true
do
/etc/init.d/ipmistack start >/dev/null 2>&1
s1=$(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
write_ch0
read_ch0_voltage
read_ch0_current
write_ch1
read_ch1_voltage
read_ch1_current
start_ipmistack
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