I can't find in the documentation for the IoT the usual section about requirements for the start of user code, the start of user RAM, the max stack used and whether any heap is required. Those are usually in the softdevice spec, but there isn't one for IoT at this point.
Reading a few other answers here it looks as though ..
code_r1_base = 0x18000
ram_r1_base = 0x20002000
max_stack = ????
max_heap = ??? (probably zero as usual)
can you please confirm those or point me to the right place in the documentation. Thanks.