I found that " The nRF51822 is built around a 32-bit ARM Cortex
M0 CPU". On the page of Keil (www.keil.com/.../4803.htm) is written that I can use either "J-link ARM" offered by Nordic or "U-link me" JTAG Debuggers. "U-link me" is low cost solution. Is it possible to program nRF52822 by this device?