Please post you code so we can check it.
Thanks. I'm trying with the sample CE219656 PSoC MCU UART using low level APIS. I'm stuck when trying to connect using putty (see page 5, OPERATION, 2 step, Sample's documentation).
It should not be an issue I think, but just in case did you update the firmware of the Kit Prog?
Open PSoC Programmer, connect to the Kit Prog and then in the Utilities tab select update firmware.
Normally this kind of message are caused by other programs using/blocking the COM Port.
Did you restart the PC in case the driver got stuck somehow?
I tried this program on my kit CY8CKIT-062-BLE and it worked with out issues. Program compiled and it said that my KitProg was out of revision SB 1.05 is 1.04 didn't affect the programming at all. My kitprog is at port 3 not 12 like your system.
I am using PUTTY!!
Thanks Aceh. Seems to be that restarting the PC (not just waking it up ) did the trick and now I can see the sample working as expected.