How an application greater than 250KBytes can upload into nrf51822?

[ashokraj]

Hi, 

            I have an application of memory size 380Kbytes, I could able to upload application into a device which has nr51822. After checking the datasheet  of nrf51822 I noticed it has only 250kB of memory and 16kB of RAM. How can this be possible ? 

[awneil]

Sigurd said:

the size of the .hex is not the same as the flash usage

Indeed - this is a common beginner's misconception!

In fact, the size of a hex file is over twice the size of the actual binary code that it represents!

This has nothing specifically to do with Nordic.

See, for example, http://www.keil.com/support/docs/3250.htm

https://en.wikipedia.org/wiki/Intel_HEX