Error: L6915E:

[karthikeyan]

hi,

   i am using sdk 14.1 nrf52840.

i am getting these 2 errors in keil

.\_build\nrf52840_xxaa.axf: Error: L6915E: Library reports error: __use_no_heap was requested, but malloc was referenced
.\_build\nrf52840_xxaa.axf: Error: L6915E: Library reports error: __use_no_heap was requested, but free was referenced

but i am not getting these errors in ses. how to solve this in keil?

regards,

karthikeyan

[Håkon Alseth]

Hi,

 

What example are you compiling?

Do you have the file \examples\802_15_4\experimental\wireless_uart\retarget.c in your project, or a file that includes the line "#pragma import(__use_no_heap)" in your project?

 

Best regards,

Håkon

[karthikeyan]

hi hakon,

   i am using ble_proximity example as a base and developed my own application.

i have commented this two line

#pragma import(__use_no_heap)
#pragma import(__use_no_heap_region)

from retarget.c file.

now it is compiling with out error.

is this the correct format what i have done or is there any other option.

regards,

karthikeyan

[Håkon Alseth]

I recommend using the retarget.c file from this folder: \components\libraries\uart\ 

The one that you have included now (from the path examples\802_15_4\experimental\wireless_uart) is just an empty implementation.

 

I do not see why this pragma is needed in the retarget.c file, or why this file is included at all.

If this is required by some corner-case in our code base, it should still be wrapped around #pragma push and #pragma pop, like this:

#pragma push
#pragma import(__use_no_heap)
#pragma import(__use_no_heap_region)

/* functions and declarations */

// Pop the options to ensure they're only valid for this file
#pragma pop

I'll input this as a bug internally.

 

Best regards,

Håkon