HT48 & HT46 MCU UART Software Implementation Method HOLTEK\'s 8-bit microcontrollers with low power consumption and high performance are very suitable for various control system products, such as office automation and some consumer products. Sometimes in some application systems, it is necessary to perform asynchronous serial communication with other microcontrollers. In this case, it is much more economical to use software methods than to choose dedicated IC hardware methods. This article introduces a simple UART software implementation method. This method is suitable for general 8-bit data transmission with a stop bit and without parity bit. The transmission baud rate can be adjusted, and the adjustment range is determined by the system frequency of the microcontroller used.
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