Programming pins of the nRF51822 chip ?

Question

Hello everyone, 
 Could anyone tell me which pins are the programming pins of the nRF51822 chip for a QFN48 packet ? How can I program it on my custom PCB? 
 thanks..

Ole Morten · Accepted Answer

The programming pins are 23 and 24, SWDIO and SWDCLK. As the name suggest, these pins implement the Serial Wire Debug (SWD) interface defined by ARM. 
 We normally recommend using Segger's programmers with our kits, and with the Development Kit we deliver a small programmer that can be used to program also custom boards. Also have a look at these questions:
 What's the difference between nRF51822 Evaluation and Development kits? 
 Can I use my nRF51822 EK (PC10001) to debug a custom PCB board?

Programming pins of the nRF51822 chip ?

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