Would you please let us know the UART pins you have selected? Also, what error or problem you are while testing?
Also, check the comments in wiced_hal_puart.h-
Remember that P# is the physical pin number on the board minus 1.
Ex: Board Pin 33 = P32.
I'm using CYW920719B2Q40EVB-01 board, and want to use PUART flow control with PC comport via USB.
I just need sample code to use PUART flow control with CYW920719B2Q40EVB.
In my test
wiced_hal_puart_select_uart_pads( WICED_PUART_RXD, WICED_PUART_TXD, 0, 0);
-> I could send tx and PC received rx;
wiced_hal_puart_select_uart_pads( WICED_PUART_RXD, WICED_PUART_TXD, WICED_UART_2_CTS, WICED_UART_2_RTS);
-> No data were transferred.
I heard 20719B2 have a problem with puart flow control from Uniquest in Korea.