We would like to collect logs from HL78 in the deployed devices to be able to analyze them in case any connection troubles.
We use UART1 as the main port to communicate with HL78.
The datasheet shows that UART0 (Diagnostic Interface) can be used for this purpose.
But there aren’t any details related to UART3 (Modem Logs Interface).
The questions are:
- Is UART3 mandatory to get logs when UART0 is already used?
- Are the log information getting from UART0 includes the same log data getting from UART3?
- Is it possible to use 2 wire (RX, TX) connection for UART3?
- Are there any documents describing the log data structure and content getting from UART0 and UART3?