Nvidia Xavier 命令 操作 链接 备忘
前言
Nvidia Jetson AGX Xavier 硬件相关
NVIDIA Xavier 环境搭建
第一篇整理了硬件相关的东西, 第二篇罗列了通过JetPack进行主机环境搭建, Xavier的系统安装和环境搭建的方法. 本篇整理下一些命令, 操作 或链接供备忘.
SSH连接
可以用网线连接到同一局域网, 也可以用USB Type-C线连接Xavier到主机, 会虚拟一个IP配置为192.168.55.x的网卡, Xavier的IP默认192.168.55.1, 如果Xavier的用户名Xavier, 就可以用ssh命令登录:
ssh xavier@192.168.55.1
输入密码就能登录了.
查看设备引脚信息
xavier@xavier-c:~$ sudo cat /sys/kernel/debug/gpio
[sudo] password for xavier:
gpiochip2: GPIOs 240-247, parent: platform/max77620-gpio, max77620-gpio, can sleep:
gpio-246 ( |gpio_default ) out hi
gpio-247 ( |gpio_default ) out hi
gpiochip1: GPIOs 248-287, parent: platform/c2f0000.gpio, tegra-gpio-aon:
gpio-253 ( |pex-refclk-sel-low ) out lo
gpio-284 ( |power-key ) in hi
gpiochip0: GPIOs 288-511, parent: platform/2200000.gpio, tegra-gpio:
gpio-288 ( |vdd-1v8-sd ) out hi
gpio-289 ( |? ) out hi
gpio-291 ( |vdd-hdmi-5v0 ) out hi
gpio-336 ( |force-recovery ) in hi
gpio-339 ( |wifi-enable ) out hi
gpio-341 ( |eqos_phy_reset ) out hi
gpio-343 ( |cd ) in hi
gpio-346 ( |temp-alert ) in hi
gpio-378 ( |pcie_wake ) in hi
gpio-386 ( |hdmi2.0_hpd ) in lo
gpio-389 ( |vdd_sys_en ) out lo
gpio-390 ( |reset_gpio ) out lo
gpio-391 ( |bt_ext_wake ) out hi
gpio-392 ( |avdd-cam-2v8 ) out lo
gpio-480 ( |bt_host_wake ) in lo
gpio-489 ( |vdd-5v-sata ) out hi
gpio-490 ( |? ) out lo
查看L4T, Ubuntu, Kernel, CUDA版本号
git clone https://github.com/jetsonhacks/jetsonUtilities
cd jetsonUtilities
./jetsonInfo.py
结果如下:
NVIDIA Jetson AGX Xavier
L4T 32.2.1 [ JetPack UNKNOWN ]
Board: t186ref
Ubuntu 18.04.2 LTS
Kernel Version: 4.9.140-tegra
CUDA 10.0.326
tegrastats
nvidia-smi用于如amd64的桌面环境, arm64的xavier没有, 可以试试:
sudo tegrastats
返回不断刷新的:
RAM 3060/15690MB (lfb 1840x4MB) SWAP 0/7845MB (cached 0MB) CPU [0%@1190,0%@1190,0%@1190,0%@1190,off,off,off,off] EMC_FREQ 3%@408 GR3D_FREQ 0%@318 APE 150 MTS fg 0% bg 0% AO@39.5C GPU@40C Tboard@40C Tdiode@42.75C AUX@39C CPU@40C thermal@39.4C PMIC@100C GPU 0/0 CPU 465/465 SOC 930/930 CV 0/0 VDDRQ 155/155 SYS5V 1537/1537
或者直接用:
xavier@xavier-c:~$ which tegrastats
/usr/bin/tegrastats
xavier@xavier-c:~$ tegrastats
RAM 3059/15690MB (lfb 1840x4MB) SWAP 0/7845MB (cached 0MB) CPU [0%@1190,0%@1190,1%@1190,0%@1190,off,off,off,off] EMC_FREQ 0% GR3D_FREQ 0% AO@39C GPU@39.5C Tboard@40C Tdiode@42.75C AUX@38.5C CPU@39.5C thermal@39.1C PMIC@100C GPU 0/0 CPU 465/465 SOC 930/930 CV 0/0 VDDRQ 155/155 SYS5V 1537/1537
风扇
参考 https://blog.csdn.net/huiyuanliyan/article/details/92799680.
系统右上角, 默认15W, 风扇不转:
风扇相关的文件 ls /sys/devices/pwm-fan
cur_pwm fan_profile power rpm_measured tach_enable
driver kickstart_params pwm_cap state_cap target_pwm
driver_override modalias pwm_rpm_table step_time temp_control
fan_kickstart of_node pwm_state_map subsystem uevent
pwm和转速的映射表 cat /sys/devices/pwm-fan/pwm_rpm_table
(Index, RPM, PWM, RRU, RRD)
(0, 0, 0, 40, 40)
(1, 1000, 77, 2, 2)
(2, 2000, 120, 1, 1)
(3, 3000, 160, 1, 1)
(4, 4000, 255, 1, 1)
(5, 5000, 255, 1, 1)
(6, 6000, 255, 1, 1)
(7, 7000, 255, 1, 1)
(8, 10000, 255, 1, 1)
(9, 11000, 255, 1, 1)
当前pwm, cat /sys/devices/pwm-fan/target_pwm
0
修改值为250, sudo vi /sys/devices/pwm-fan/target_pwm
可以感受到风扇呼呼的转了起来, 顶部吸风, 两侧出风.
温度, 电压, 风扇的工具 lm_sensors
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