Developing for nRF52810 - the full story?

Question

nRF5 SDK > nRF5 SDK v15.0.0 > User Guides > Developing for nRF52810 gives a list of things to do to adapt an nRF528 32 project to an nRF528 10 target. 
 
 But, looking at the SDK v15.0.0 PCA10040 (nRF528 32 ) and PCA10040 e ( nRF528 10 ) blinky example, there are a few extra changes which are not mentioned; viz, 
 
 Change FLOAT_ABI_HARD to FLOAT_ABI_SOFT 
 Change __HEAP_SIZE=8192 to 2048 
 Change __STACK_SIZE=8192 to 2048

Are these essential, or just optional? 
 
 Are there any others? 
 
 EDIT 
 Please see updates below if the link doesn't work ...

Håkon Alseth · Accepted Answer

Hi Andrew, 
 
 You are correct. the user guide does lacks the information about using softfp. I'll report this internally. 
 The things you list are essential to change in your project in order to make the firmware run. 
 The HEAP and STACK size shall be set by-default by your startup file (if using GCC atleast): 
 .section .stack
#if defined(__STARTUP_CONFIG)
 .align __STARTUP_CONFIG_STACK_ALIGNEMENT
 .equ Stack_Size, __STARTUP_CONFIG_STACK_SIZE
#elif defined(__STACK_SIZE)
 .align 3
 .equ Stack_Size, __STACK_SIZE
#else
 .align 3
 .equ Stack_Size, 2048
#endif
 .globl __StackTop
 .globl __StackLimit
__StackLimit:
 .space Stack_Size
 .size __StackLimit, . - __StackLimit
__StackTop:
 .size __StackTop, . - __StackTop

 .section .heap
 .align 3
#if defined(__STARTUP_CONFIG)
 .equ Heap_Size, __STARTUP_CONFIG_HEAP_SIZE
#elif defined(__HEAP_SIZE)
 .equ Heap_Size, __HEAP_SIZE
#else

Best regards, 
 Håkon

Developing for nRF52810 - the full story?

Top Replies