I have a board with processor which connects to CC2564 through UART. We have firmware which sets processor UART tri-stated. Then I use FTDI USB to UART wires to CC2564 UART interface directly and connect to PC USB port. Open Tera term and set the COM port but does not see any response from CC2564. Use 4 wire UART connection.
The objective is to use Bluetooth low energy tester such as R&S CBT to test BLE RF parameters
Questions:
1. How to set CC2564 to Direct Test Mode(DTM)?
2. Does our processor need to send HCI command to CC2564 to place it in DTM, then tri-stated processor UART interface and connect UART to CC2564 externally?
3. Am I supposed to see UART response from CC2564 chip if connect UART of CC2564 to PC through FTDI USB to UART chip?
4. Please provide as much detail as possible for how to place CC2564 to DTM mode.
