5 years ago.

fds on mbed

Is it possible to use FDS with mbed on nRF52832 QFAA (512kB flash) ? I am trying to initialize BLE and FDS using mbed code like this

BLE &ble = BLE::Instance(); ble.onEventsToProcess(scheduleBleEventsProcessing); ble.init(bleInitComplete);

I'm calling fds_init() inside of bleInitComplete() prior start advertising, however nRF52 hangs within few ms after fds_init(). I suspect this has something to do with flash memory regions?

I have in my linker script following:

/* Linker script to configure memory regions. */

/* Default to no softdevice */

if !defined(MBED_APP_START) define MBED_APP_START 0x0 endif if !defined(MBED_APP_SIZE) define MBED_APP_SIZE 0x80000 endif /* If softdevice is present, set aside space for it */

if !defined(MBED_RAM_START) if defined(SOFTDEVICE_PRESENT) define MBED_RAM_START 0x200031D0 define MBED_RAM_SIZE 0xCE30 else define MBED_RAM_START 0x20000000 define MBED_RAM_SIZE 0x10000 endif endif define MBED_RAM0_START MBED_RAM_START define MBED_RAM0_SIZE 0xE0 define MBED_RAM1_START (MBED_RAM_START + MBED_RAM0_SIZE) define MBED_RAM1_SIZE (MBED_RAM_SIZE - MBED_RAM0_SIZE)

MEMORY { FLASH (rx) : ORIGIN = MBED_APP_START, LENGTH = MBED_APP_SIZE RAM_NVIC (rwx) : ORIGIN = MBED_RAM0_START, LENGTH = MBED_RAM0_SIZE RAM (rwx) : ORIGIN = MBED_RAM1_START, LENGTH = MBED_RAM1_SIZE }

Any suggestion if there is something special needed to configure application data storage region in order to make FDS work on mbed ? Thanks Peter

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