Is the UART serial port of the product a dedicated debugging port? Is the UART serial port occupied when communicating with external devices?Also can realize the program In-Circuit Serial Download Access?
Is the UART serial port of the product a dedicated debugging port? Is the UART serial port occupied when communicating with external devices?Also can realize the program In-Circuit Serial Download Access?
Hi,
1. Is the UART serial port of the product a dedicated debugging port?
It's not a dedicated debugging port. You can use it for normal UART communication.
2. Is the UART serial port occupied when communicating with external devices? Also can realize the program In-Circuit Serial Download Access?
I'm a bit confused about the question. Are you asking if you can use the device to communicate with an external device and use the In-Circuit Serial Download Access?
If you use the In-Circuit Serial Download Access, it will require an RS-232 chip for level translation if downloading a code from the PC. You need to consider if the external device can handle the voltage translation.
You can also implement a dongle if you do not want to design an RS-232 on the board. You can check the attached application note on a 4-wire UART-to-PC dongle.
Regards,
Karl
