Malloc in CCM

[ludovic Wiart]

Posted on September 19, 2017 at 10:20

Hi,

I'm using threadX on STM32F415, and I need to create some process in SRAM and another one in CCM (depending of DMA usage)

In SRAM I create the thread like that :

void* p;

p=malloc (1024);

create_thread (... , p, 1024, ...);

how is it possible to do that in CCM ?

BR

Ludo

#ccm #threadx #malloc #sram-ccm

[waclawek.jan]

Posted on September 19, 2017 at 10:33

malloc() and kin are library functions supplied by your toolchain vendor, so you need to ask there.

You always can write your own memory allocator of course.

JW

[AvaTar]

Posted on September 19, 2017 at 11:30

Last time I checked (en.DM00031020.pdf, sect. 2.3.1), the CCM was only accessible on the D-bus.

Meaning, no code execution from CCM.