...so, nrf51822 (Rev2 SRAM=16KB) are useless with Zephyr rtos?

[Marcelo Aleks]

I've already tried to set some zephyr configs, but n51822 to run as peripheral it nedds at least ~20KB

Have anyone got success or all the nrf51822 QFAA H2 will really never work ?

[Marcelo Aleks]

haakonsh thanks!


But what happens when someone is using the NCS repository to develop a nrf solution, but, at the same time, needs some feature that is only on the zephyrproject-rtos rep ?

[haakonsh]

They'll have to make that integration themselves, if it's just a single PR then it can be painless to merge it into a given version of Zephyr that is used in the given version of NCS. 

We try not to lag too far behind zephyr though and many of the critical updates/features for our devices will come from us downstream and up to Zephyr Project, then we will make another release of NCS with the current version of Zephyr (that just merged the given pull requests). We release tags of NCS, but we also use the Master branch to stay as up-to-date with the Zephyr Project as possible. 

We can only support NCS with a given version of Zephyr as we do a lot of testing 24/7. If we would support any version of NCS with any version of Zephyr the matrix of tests required would grow exponentially with new releases of NCS and Zephyr. 

[Marcelo Aleks]

Thank you !!!