Hello Team !!
I have few questions regarding UART Flow control
* We are facing some flow control issues using UART. Please check the below GPIO pins are used for my UART connection.
p1_3 for UART2 TX
p2_3 for UART2 RX
p1_7 for UART2 RTS
p1_2 for UART2 CTS
* When i read the data sheet " Special IO considerations" block they mentioned the below information
P1_0, P1_5 and P1_7 might affect radio performance
if toggling while RF activity. It is recommended
to use them at low speed and not while
radio is active.
* When we increase the baudrate to 115k it drops lots of packets and disconnected BLE.( What is the maximum bandwidth supports over UART2 in DA14681) ??
* so p1_7 is good to use for RTS ??? is there any conflict to BLE if we use that pin ??
Device:
Hi Dheeraj,
The maximum speed supported by the UART is up to 1M, regarding if the pin 1_7 can be used as an RTS pin depends on the activity that you have on the UART if there is a lot of data transfer over the RX/TX pins that results in toggling the RTS in a certain rate and that will affect the radio. In general we dont recommend using these pins to channel signals that toggle in any way since in every toggling of that pin the radio will be affected.
Thanks MT_dialog