How to expand the flash memory address?

[tovax]

Hi, all!

nRF51822 had been used in my project, because of dual bank bootloader and softdevice, the internal flash memory was not enough for the application. I want to know how to expand the flash memory.

I think a external flash memory is necessary, but I can't know how to precess it: first method, remap the flash memory address to the external flash memory. second method, copy the code of the external flash memory to the internal ram, and run the code in the ram. but another problem is appeared: the internal ram space is also not enough, how to expand the ram memory?

Can you help me, please?

Best Regards! tovax

[Petter Myhre]

Have you considered migrating to the nRF52832? More flash, more RAM, more powerful, uses less power++

[tovax]

Hi, Petter Myhre, thanks very much for your reply! nRF52832 had been used in the new product, It's really cost-effective. But this old product can't use it, because of the stock in warehouse, and so on.