Startup code for multiple SoC

[Johannes]

I have a project where I am distributing code images to a number of devices with DFU (this is a custom bootloader)

The peripherals use a mixture of 52840 and 52811 SoC due to size and cost constraints.

Is there a way to have a common image that can run on both chips? I have already set the memory layout and configuration such that it can run on either device.

But, there is also the device-specific startup code that deals with errata and such (ses_startup_nrf52811.s and ses_startup_nrf52840.s).

Is there a way to have a common code that will execute either one of the startup code dynamically upon detecting which chip it is running on?

Thanks in advance

Johannes

[Johannes]

forgot to mention also system_nrf52811.c and system_nrf52840.c

[Amanda Hsieh]

Hi Johannes, 

Our SDK projects do not fully support this, the pca10056e is emulating nRF52811 to run on nRF52840, so it's close, but there is still this compile flag DEVELOP_IN_NRF52840 and NRFX_COREDEP_DELAY_US_LOOP_CYCLES that need to be set depending on what HW that it's really running on. See Developing for nRF52811 documentation. 

-Amanda H.