Access to UART pins between the BT module and an STM32F4 processor

rtechgeek's picture

For debugging, I am trying to answer the question whether the UART communications between the BT module and the STM32F4 processor is using RTS/CTS flow control.

I am using the WICED BT stack on the Avnet BCM4343W IoT Starter kit BT module, and I would like to observe the RTS/CTS behavior on a logic analyzer.   I do not see these signals available on the AES-BCM4343W-M1-G card edge connectors, nor the Avnet board's shield connectors.   

I do not have access to the internal schematic of the AES-BCM4343W-M1-G module. Are the RTS/CTS/RXD/TXD signals between the STM32F4 processor and the BT module accessible anywhere on the board?   I just want to verify that the WICED stack behaves the same way on the Avnet board as the Nucleo board.


Rob Lieb


lennartp's picture

Would be nice to know for me,too.

Maybe a Ball Map or a Pin Out would be helpful.


Best Regards