UART nrf52840

[pavan]

Hello,

I am working on nrf52840 EVB , i programmed the board BLE_APP_UART but this profile is not working , still the board functioning previously programmed blinky example only even after the erasing?? plz help

[RK]

did you put a softdevice on the chip?

[pavan]

no i dint program any soft device separately ..how to program it?

[Mahesh Venkitachalam]

What toolchain are you using to program it? You said EVB above - do you mean nRF52-DK? In any case, if you're using ARM GCC, do a make flash_softdevice followed by a make flash.

[pavan]

I am using keil uvision 5

[Mahesh Venkitachalam]

Did you read this Nordic tutorial?

devzone.nordicsemi.com/.../