这篇文章介绍了如何使用USB串口来调试嵌入式设备。

1)查看USB串口信息

$ lsusb
2019-11-05 14:40:32.745 system_profiler[93235:18494963] SPUSBDevice: IOCreatePlugInInterfaceForService failed 0xe00002be
USB:

    USB 3.0 Bus:

      Host Controller Driver: AppleUSBXHCILPTH
      PCI Device ID: 0x8c31
      PCI Revision ID: 0x0005
      PCI Vendor ID: 0x8086

        CP2102 USB to UART Bridge Controller:

          Product ID: 0xea60
          Vendor ID: 0x10c4 (Silicon Laboratories, Inc.)
          Version: 1.00
          Serial Number: 0001
          Speed: Up to 12 Mb/sec
          Manufacturer: Silicon Labs
          Location ID: 0x14200000 / 22
          Current Available (mA): 500
          Current Required (mA): 100
          Extra Operating Current (mA): 0

2)安装串口驱动

驱动下载:https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers#mac 具体链接:https://www.silabs.com/documents/public/software/Mac_OSX_VCP_Driver.zip

$ ls /dev/tty.* 
# ... 将看到 
/dev/tty.SLAB_USBtoUART

3)安装串口工具

可以选择minicom和coolterm,熟悉命令行操作的可以使用minicom,这里使用coolterm有界面的

brew cask install coolterm

PS: 我这里的情况是只需接入RX、TX和GND即可。

> PS:根据自己的需求设定好串口参数。

记得勾选“Connect”

顺利接入: