利用UART下的Register (IO最底層)，達到透過UART傳送資料，並非使用API或是內建函數，單純使用IO Port。-UART use under the Register (IO bottom) to send data through the UART is not using the API or built-in function, simple to use IO Port.

该程序是PIC单片机IO口模拟uart进行通讯的,供大家参考学习-The program is simulated PIC microcontroller IO port uart to communicate, for your reference study

pic单片机，利用io口模拟串口发送功能-pic，mcu ，simulate uart communication