How to run 2 baud rates on same UART pins in NRF51?

[Firmware Developer]

Hello,
I am using NRF51822. I want to run UART communication on two different baud rates for 2 different hardware on pin number P09(TX) and P11(RX) respectively. I have to use these two pins only for communicating with my hardware. I have no problem in sending the data to both the hardware with the designated baud rates. But while receiving the response from the hardware sometimes the data is not received. How can I fix this problem?.

Here is the snippet of code that I am using.

[awneil]

Firmware Developer said:

sometimes the data is not received. How can I fix this problem?.

First of all, you need to work out what the problem actually is!

• Try to characterise "sometimes"
• Is it because your code is not listening at all at the correct time?
• Is it because your code is listening at the wrong baud rate at the time?
• ie, is there no data received, or partial data received, or corrupt data received, or ... ?
• Are there hardware issues in your switching of the 2 external devices?
• etc, etc, etc, ...

On debugging in general:

https://www.avrfreaks.net/comment/2418156#comment-2418156

On debugging serial comms:

https://www.avrfreaks.net/comment/2336161#comment-2336161

Lots of tips on how to make your system "debuggable":

https://www.avrfreaks.net/forum/how-do-i-check-life-signs-scope-atmega2560-standalone