Uart high baud rate data print

[chetan98]

Hello NXP,

We are using Kw45 board to recieve data over BLE and printing data in uart using usb in teraterm SDK used eattcentral and using baud rate of 921600 bps in teraterm as I would like to inform we are sending more than 3200000 bps from 4 device and using masterblocking API to send data over uart can NXP confirm how much kw45 board support baud rate and is it feasible to increase the baud rate more than 921600.

Moreover there is any reference code or document to implement non blocking call in kw45 board as if I use non blocking API BLE stop in board.

Even increasing baud rate beyond 921600 we are not recieving full 100 percentage we can nxp tell what can be the reason.

Regards

Chetan

[luis_maravilla]

Hello Chetan

Could you help us confirm if you are using an NXP development board [KW45B41Z-EVK / KW45-LOC] or a custom board?

Could you help us describe your modifications implemented in the example code?

The EATT_Central example it's designed to use in 115200 baud rates for getting the complete responses, modifying to a higher speed would interfere with desired functionality.

Could you help us explain more details about your application? And could you help us bring details about what do you refer by BLE stop with the non-blocking API?

It is recommended to design small attribute value sizes to prevent cause a congestion when multiple devices try to communicate with the same central antenna, leading to interference and potential data loss.

You could review on this series of community post about working with long attributes Bluetooth Low Energy - Working with long attributes on a GATT Server - Part 1: ATT_MTU - NXP Communi... if you need to send larger bytes of data.

Best regards

Luis