实际设计中经验值大概是不超过 8 个器件。 总线之所以规定电容大小是因为,I2C 使用的 GPIO 为开漏结构,开漏结构无法输出高电平,要求外部有上拉电阻拉高。电阻和总线电容产生了一个 RC 延时效应,电容越大信号的边沿就越缓,有可能带来信号质量风险。 传输速度越快,信号的窗口就越小,上升沿下降沿时间要求更短更陡峭,...
使用i2c-tools工具包提供了一些非常方便的工具来对系统的I2C总线进行调试,在开发板的终端中可直接执行以下命令进行安装: 1 sudo apt install i2c-tools wget gcc -y 安装后可使用的命令有i2cdetect、i2cdump、i2cset以及i2cget,用于扫描I2C总线上的设备、读写指定设备的寄存器等。 查看挂载在i2c1上的器件情况,输...
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Step1:进入i2c-tools所在的文件夹下mydroid/external/i2c-tools Step2:执行source /opt/poky/2.4.3/environment-setup-aarch64-poky-linux(寻找对应版本的toolchain) Step3:执行 make Step4:进入mydroid/external/i2c-tools/tools文件夹下,我们可以看到会生成4个可执行文件 i2cdetect i2cdump i2cget i2cset...
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i2c-tools2017-03-30 上传大小:56KB 所需:44积分/C币立即下载 linux I2C通用驱动 android下或者linux下 I2C通用驱动的 实现数据的收发 也有DMA的通信方式 上传者:qq_23621017时间:2017-12-05 i2c-tools source code 为I2C-tools的源码包,可以移植到开发板上!--- 上传者:changqing1990时间:2015-01-14 hdparm...
Note: To use Bus 0 with the example, you will need to modify the example source code. Software Installation Once the board is wired up, turn the Jetson on. Install the libi2c-dev library. In order to be able inspect the LED Display, you may find it useful to also install the i2c ...
i2c-tools: add .gitignore 9年前 include libi2c: Mention the correct license in source files 7年前 lib libi2c: Mention the correct license in source files 7年前 py-smbus py-smbus: Fix FSF address in smbusmodule.c 7年前 stub Update my e-mail address and copyright ...
* as could the init code for each daughtercard in a board stack. * * The I2C devices will be created later, after the adapter for the relevant * bus has been registered. After that moment, standard driver model tools * are used to bind "new style" I2C drivers to the devices. The ...
如果提示"Please install SourceCodePro font",请忽略,点击OK即可 于是我们会来到这个界面: uPyCraft的初始界面 我们需要在上方的Tools菜单栏中选择esp8266的端口,在Serial中选择端口(在我的电脑上是COM27,会有差别)。 初次使用时,在经过短暂的卡顿后,程序会提示让您给esp8266烧录MicroPython固件 ...