DOUBT ABOUT FLASH MEMORY IN NRF52832 QFABB0

Question

Hi, 
 
 We are developing a mouse . The controller we are using is NRF52832 QFABB0. 
 You known that its contain 32KB RAM and 256KB of flash memory. 
 Our application contains OTA-DFU feature.So we need to flash softdevice+bootloader+ application hex to the NRF52832 . 
 our softdevice hex = 135.5 KB 
 our bootloader hex= 40.8 KB 
 our application hex =118.7 KB 
 Total = 296 KB. 
 The total size of softdevice +bootloader+ application is greater than the size of NRF52832 flash memory. 
 I flashed all softdevice +bootloader+application hex to the NRF52832 and it successfully done. and the application is working fine too and also we can able to do the OTA-DFU too. 
 
 DOUBT 
 
 SOFTDEVICE +BOOTLOADER+APPLICATION HEX FILE ARE STORING IN WHICH MEMORY OF THE MICROCONTROLLER . I THINK ITS FLASH ,IS IT RIGHT? 
 I ALREADY MENTIONED THAT THE SOFTDEVICE +BOOTLOADER+APPLICATION HEX SIZE IS GREATER THAN NRF52832 FLASH MEMORY +RAM. THEN HOW THE PROGRAMME FLASHING IS SUCESSFULLY TAKEING PLACE? I AM TOTALLY CONFUSED ABOUT IT.

Kenneth · Accepted Answer

I don't need the dump.hex anymore, I think the below explain what you are experiencing. 
 Kenneth said: What may be the case here is that during early production of a new variant it may share silicon with a larger variant for a short period of time, for instance to meet production schedule. However, this will only occur for a short period of time, and the RAM and Flash above the specified size is not tested or guaranteed to work in any way. So if you have created firmware that exceed the size of a variant, then you need to use a larger variant.

DOUBT ABOUT FLASH MEMORY IN NRF52832 QFABB0

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