Problem after doing DFU over BLE.

RE: Problem after doing DFU over BLE.

Vidar Berg — Thu, 07 Jan 2021 10:14:22 GMT

Hello,

Could you please post your "UART event handler" code here?

RE: Problem after doing DFU over BLE.

Vibhor — Wed, 06 Jan 2021 09:33:32 GMT

Hello,

I am trying to read some data using UART and send that data over BLE. Only on successful reading of data on UART port, the data is sent over BLE. The problem is sometimes I am don't receive any data in cellphone. I tried placing some debug flags in UART event handler and send the debug flag data over BLE. Using that I am able to find that the code enters in UART event handler (data ready case).

But the flag which determines the successful reading of data is not being set and so the data is not sent over ble. This happens very rarely (1 out of 25 times).

If I erase the chip using nrfgo studio and upload the DFU package again. Everything starts to works fine.

RE: Problem after doing DFU over BLE.

Vibhor — Wed, 06 Jan 2021 08:56:05 GMT

Hello,

But the flag which determines the successful reading of data is not being set and so the data is not sent over ble. This happens very rarely (1 out of 25 times).

If I erase the chip using nrfgo studio and upload the DFU package again. Everything starts to works fine.

RE: Problem after doing DFU over BLE.

Vidar Berg — Wed, 06 Jan 2021 08:41:23 GMT

Hi,

It should not be a problem to perform DFU multiple times on the same controller. What is the issue you are facing in the UART event handler? Are you getting an UART error event (error conditions)?