Faster Flashing nRF52 DK

[lvh831]

Currently I'm using DK pca10056 board. My program is about 600kb and it takes a while to flash. I use the default setting for nrfjprog, SWD 4000. I wonder if there is any other method I could flash my chip faster during the development process. Could the jlink pro from segger with JTAG  improve the programming time? Is the programming speed determined by the FLASH write speed? Thanks.

[Einar Thorsrud]

The limiting factor is typically the flash, and not the speed of the SWD interface. Another important factor though is that you should do a full chip erase, and then program without doing page erases. Some tools will erase page by page so that only pages that you will write to will be erased, but this is significantly slower than a full erase.