Not able to send data

[Akshat Lalit]

Hello I have been working with EVM430FR6043 and nRF52832 . I am trying to establish a UART communication between them. In this process I was able to get data from the EVM430FR6043 to nRF connect app's Tx characteristic when I uploaded the ble_uart example. I also have uploaded the FR6043 UART code on the EVM board. But I am unable to send data on the EVM's UART by the nRF app. Please resolve this issue

[Einar Thorsrud]

Hi Akshat,

From what I understand you are using the unmodified ble_uart exmaple on the nRF52 (DK?), and the communication one way is working as expected, the whole way form the EVM430FR6043 board via the nRF to nRF Connect for mobile, but not the other way. In other words, you are not able to send data from nRF Connect to the EVM430FR6043?

As you got a lot working already there is probably a minor issue. Could there be an issue with the wiring? Or perhaps an issue with flow control? Is WH flow control enabled or disabled, and do you have the same configuration on the nRF as on the EVM430FR6043? And are the pins correct?

If checking the above does not help, perhaps you can connect the Rx and Tx (and RTS and CTS if flow control is enabled) pins on the nRF only to make it loop back? If that works, then you know that the whole chain between the nRF and mobile via BLE work as expected, as well as the UART part on the nRF. In that case, look closer at the EVM430FR6043 and how it is connected to the nRF.

Einar

[Akshat Lalit]

Thank you so much sir. I will get back to you:)