RAM Banks (RAM retention)

[Nick]

How are the four RAM banks divided up in the nRF51822? Is it an even split of the 16K total RAM (i.e. 4K per block)?

Furthermore, can I expect strange results if I turn on RAM-retention for the 8K of RAM the SoftDevice uses?

Thanks :)

[Nick]

Thanks for the hints. Unfortunately I am not using Keil but instead gcc-arm.

This is how you do it for GCC for those who are interested:

1. Add the following to the linker script (in SECTIONS, before bss):

   .noinit (NOLOAD) :
	{
		*(.noinit*)
    } > RAM

2. In your source code for each variable you want retained:

static uint8_t varName __attribute__ ((section(".noinit")));

That's it! Working perfectly :)