nRF51822 controller connection through UART/SWD.

[Namitha]

I need to program the nrf51 controller directly from PC. How to connect nRF51822 controller from PC through UART/SWD pins to program.

[Namitha]

The thing is if i have the nRF51 DK board can i program the nRF51822 controller which is on the DK board directly from PC using the nRF51822 UART pins and USB to UART converter.

The interface MCU will be bypassed by cutting the soldering edge.

Is it possible to do kindly reply or i need any other software or debugger to program the controller.

[Andreas]

Hi,

 

I am not quite sure I understand what you mean, but if you have a nRF51-DK you have all that you need to program/debug your nRF51822 board, and the nRF51822 IC that sits on the nRF51822. Some slight modifications might be needed on the DK in order to have the interface MCU communicate with the external nRF51822 over UART.

 

The principle for both programming a nRF51822, and communicating with a nRF51822 over UART is the same, regardless if it is your custom PCB or a nRF51-DK. See this blog post for details. The difference is that on the DK, UART and SWD(for programming/debug) lines are hard-wired to the nRF51822 that is on the DK itself. If that NRF51822 sits in parallel with your custom board nRF51822 then the communication will be disrupted.

 

Best regards,

Andreas

[Namitha]

But for mass production we need to program nRF51 on our PCB individually. I want to know how to connect, by using DK board can we program the controller which is in our PCB..kindly help us with this.

[Andreas]

Hi,

 

For production programming you need a production programmer, the DK debugger license only covers use during development. The connection towards your board will be the same though, it will just be a different programmer instead of a DK.

You might find this getting started guide useful.

 

Best regards,

Andreas

[Namitha]

Ok thank you..one more thing i need to know which all pins i need to take out from the nRF51 controller in order to program with these programmers.