OTA function is good ,but it takes so much size...

[Pony Ma]

The settings.hex file is 6 K ,

the bootloader.hex file is 68 K ,

the softdevice.hex file is 429 K ,

the app.hex file is 183 K.

app.hex  is  just  made for DFU function &ble uart function .

but ,when I add these files to nrf connect(desktop version). It seems that size becomes to 1/3 original size ?

So ,what size is the real size to our MCU？

[Einar Thorsrud]

Hi,

This is because the .hex files are not binary files, but rather Intel HEX which is a texts representation of the binary files with addresses etc. The actual size of the binary (and the size it needs on the nRF) is what you see in nRF Connect programmer (and typically also as output from the linker when you build it).