[NUC240] Use ACMP to Invert UART TX

[chhsieh3]

• Application: Use ACMP to invert the UART TX signal.
• BSP Version: NUC230/240 Series BSP CMSIS V3.01.001
• Hardware: NuTiny-EVB-NUC240 V1.2

In some applications, the UART signal needs to be inverted, and we can implement it using ACMP. This article uses UART TX as an example, and UART can also use this method.

You can download the sample code at https://www.nuvoton.com/resource-downlo ... 1225172644