Product Info

LPWA Module Series
BC66-NA Hardware Design
BC66-NA_Hardware_Design 33 / 59
Figure 16: Reference Design for Main UART Port
3.9.2. Debug UART Port
Through debug tools, the debug UART port can be used to output logs for firmware debugging. Its baud
rate is 115200bps by default. The following is a reference design of debug UART port.
Figure 17: Reference Design of Debug UART Port
3.9.3. Auxiliary UART Port
The auxiliary UART port is designed as a general purpose UART for communication with DTE. It also
supports log output for firmware debugging, and hardware flow control*. Its baud rate is 115200bps by
default. The following is a reference design of auxiliary UART port.