they have two RAMs at two distinct locations:
RAM1 (address: MBED_RAM_START, size: MBED_RAM_SIZE):
* stack
* heap
* some part of static memory
RAM2 (address: MBED_IRAM2_START, size: MBED_IRAM2_SIZE):
* remaining part of static memory starting at MBED_IRAM2_START
* crash report
* vector
The heap size was incorrectly calculated.
This fixes it by subtracting the Stack size, any memory chunks allocated
before the start of the application (for vectors and/or crash report), and
finally the size of the application from the total RAM size.
Hugues Kamba
Martin Kojtal
jeromecoutant