Usart_It; Usart_Dma - Waveshare Open429I-C (HAL) User Manual

Open429I-C User Manual
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2.6.2. USART_IT

Overview
⚫
Use HAL Interrupt measure, UART demo.
Operation and result
⚫
Download codes then press Reset button. With Serial assistance software, it
require to you input 10 characters, it will send and echo (for example, input string
Open4x9i-C)
****UART-Hyperterminal communication based on IT ****
Enter 10 characters using keyboard :
Open4x9I-C
Example Finished

2.6.3. USART_DMA

Overview
⚫
Use HAL DMA measure, UART demo.
Operation and result
⚫
Download codes then press Reset button. Information are printed as below:
**** UART-Hyperterminal communication based on DMA ***
WaveShare Open4X9I-C Board
Version: V1.3.3, Date: 2019.04.02 11 / 47