Note3MPS/PXE/ADS/INA电流电压芯片，i2c设备在位和读访问，FPGA版本，PCIE读写，TMP112，Fan转速，uuid库

Posted 2022-11-14 码农编程录

文章目录

• 1.读MPS5023芯片：0x03ff即将前6位屏蔽，hex->dec
• 2.读PXE1410CDM电压和电流：一个数&0x7ff（0000 0111 1111 1111），将这个数前5位全变为0，其余位不变
• 3.读ADS7830的8个channel电压: 无电流，max，min
• 4.读INA220电压和电流：Read_INA220_Voltage_Current.sh
• 5.check.sh：运行在BMC下用于检查i2c设备。会自动打印检查结果,须在脚本后添加检查次数，否则一直循环。./check.sh num
• 6.check.py：运行在OS下用于检查DDR SFP CPLD设备。自动打印检查结果，需在脚本后指定DDR的bus。python check.py bus
• 7.check_port_tx_rx_setup.sh：取出第8位和第16位
• 8.fpga_check.py：检查FPGA版本脚本，将fpga_check.py 拷贝到perfq_app所在的目录下执行
• 9.pcie_check.py：检查PCIE的Corporation Device 、Region 0、Region 2、LnkCap、LnkSta信息
• 10.pcie.py：对PCIE通道的性能测试，主要是对FPGA寄存器读写压力测试，从而对PCIE性能进行测试。运行脚本，屏幕会显示相应的错误和正确信息
• 11.读TMP112进出口温度："+%Y-%m-%d %H:%M:%S"
• 12.控制风扇速度：十进制转十六进制

---

1.读MPS5023芯片：0x03ff即将前6位屏蔽，hex->dec

# Read_FPGA_Power.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 #将bus7上0x73这设备删除
        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   #0x80打开channel8
        if [ $? = 0 ]
        then
            break
        fi
        if [ $cnt -eq 5 ]
        then
          echo "Unable to access 9548 channel8 !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done


read_voltage()
    cnt=0
    while true
    do
        val_v=$(i2c-test -b 7 -s 0x40 -m 1 -rc 2 -d 0x8b)
        if [ $? = 0 ]
        then
        hexval_v_h=$val_v:14:2
        hexval_v_l=$val_v:17:2
        hexval_v=$hexval_v_l$hexval_v_h
        #echo $hexval_v  #0183

        dec_v=$((0x$hexval_v & 0x3ff))  #&：有0为0，3ff:10个1, hex->dec
        #echo $dec_v  #388
        dec_v_wv=$((dec_v*3125))  #31.25mV/LSB
        dec_v_v=$((dec_v_wv/100000))
        #echo $dec_v_v   #12
              break
        fi
        if [ $cnt -eq 5 ]
        then
          echo "Unable to read voltage !"
          exit 1
        fi
        cnt=$(($cnt+1))
    done


read_power()
    cnt=0
    while true
    do
        val_a=$(i2c-test -b 7 -s 0x40 -m 1 -rc 2 -d 0x8c) #电流
        if [ $? = 0 ]
        then
        hexval_a_h=$val_a:14:2
        hexval_a_l=$val_a:17:2
        hexval_a=$hexval_a_l$hexval_a_h
        #echo $hexval_a  #0054

        dec_a=$((0x$hexval_a & 0x3ff))
        dec_a_wa=$((dec_a*6250))
        dec_a_a=$((dec_a_wa/100000))
		#echo $dec_a_a
        power=$(($dec_v_v * $dec_a_a))
        echo "FPGA Power : "$power"W"
              break
        fi
        if [ $cnt -eq 5 ]
        then
          echo "Unable to read electricity !"
          exit 1
        fi
        cnt=$(($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_voltage
read_power
start_ipmistack

2.读PXE1410CDM电压和电流：一个数&0x7ff（0000 0111 1111 1111），将这个数前5位全变为0，其余位不变

ipmitool raw 0x3a 0x10 <bus id> <slave addr> <Read count> <Data to write> （00：第一个状态码不显示）

status , log_psu1 = run_command("sudo bash -c 'a=$(ipmitool raw 0x3a 0x10 14 0xb0 2 0x88) ; b=$a:1:2 ; c=$a:4:5 ; d=$c$b ; \\
    f=`../utility/diag-tools/pmbus_tool/line11 0x$d` ; echo $f'")  # psu1 输入电压

status , log_psu2 = run_command("sudo bash -c 'a=$(ipmitool raw 0x3a 0x10 15 0xb0 2 0x88) ; b=$a:1:2 ; c=$a:4:5 ; d=$c$b ; \\
    f=`../utility/diag-tools/pmbus_tool/line11 0x$d` ; echo $f'")  # psu2 输入电压


status , log_psu11 = run_command("sudo bash -c 'a=$(ipmitool raw 0x3a 0x10 14 0xb0 2 0x8b) ; b=$a:1:2 ; c=$a:4:5 ; d=$c$b ; \\
    f=`../utility/diag-tools/pmbus_tool/line16 0x$d` ; echo $f'")  # psu1 输出电压

status , log_psu22 = run_command("sudo bash -c 'a=$(ipmitool raw 0x3a 0x10 15 0xb0 2 0x8b) ; b=$a:1:2 ; c=$a:4:5 ; d=$c$b ; \\
    f=`../utility/diag-tools/pmbus_tool/line16 0x$d` ; echo $f'") # psu2 输出电压

输入电压（mv）：
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x60 0x88 w
0xe9b6
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x61 0x88 w
0xe9b5
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x62 0x88 w
0xe9b6
root@gnr5713bb:/var/log/abak# ./line11_arm 0xe9b6
54750


输出电压（mv）：
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x60 0x8b w
0xc2ad
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x61 0x8b w
0xc395
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x62 0x8b w
0xc0f8

root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x60 0x20
0x14
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x61 0x20
0x14
root@gnr5713bb:/var/log/abak# i2cget -f -y 15 0x62 0x20
0x14

root@gnr5713bb:/var/log/abak# ./line16_arm 0xc2ad 0x14
12167
root@gnr5713bb:/var/log/abak# ./line16_arm 0xc395 0x14
12223
root@gnr5713bb:/var/log/abak# ./line16_arm 0xc0f8 0x14
12060

计算机以补码形式存放负数，0010+1=0011（十进制3），438乘2的-3次方 = 54.8。


如下十六进制HEX c2ad ， line16的一种方法，49837乘2的-12次方 = 12.1，不用0x20寄存器。


如下是0x20读出来是0x17。

如下取反加1后，十进制和十六进制都为9。

如下是c语言的线性转换，0x0184十六进制printf输出为十进制388。

/*
 * X = Y*2^N
 * X is the "real world" value;
 * Y(mantissa) = bit[0:10]
 * N(exponent) = bit[11:15], bit 15 is sign bit
 */
static int32_t linear_convert(int32_t data)

    int16_t exponent;
    int32_t mantissa;
    int32_t val_x;
    mantissa = (((data & 0x7ff) << 5)) >> 5;
    exponent = ((int16_t)data) >> 11;
    val_x = mantissa * 1000L;
    if (exponent >= 0)
        val_x <<= exponent;
    else
        val_x >>= -exponent;
    return val_x;

//current.c  arm编译器arm-linux-gcc （不是x86的gcc）编译成current(电流)可执行文件, linear11
#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;

// linear16
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char ** argv)

    short exponent;
    int mantissa;
    int val_x;

    mantissa = (unsigned short)strtoul(argv[1],0,0);
    exponent = ((signed short)(0x17 << 11)) >> 11 ;

    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

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
stop_ipmistack
delete
access
OpenChannel
write_ch0
read_ch0_voltage
read_ch0_current
write_ch1
read_ch1_voltage
read_ch1_current
start_ipmistack

ESD防静电保护管PESDHC2FD4V5BH原装芯导Prisemi，DFN1006-2反向关断电压4.5V，箝位电压5.8V，PESDHC2FD4V5BH双向静电保护

ESD防静电保护管PESDHC2FD4V5BH原装芯导Prisemi，DFN1006-2反向关断电压4.5V，箝位电压5.8V，PESDHC2FD4V5BH双向静电保护

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