Getting "No space in execution region" errors.

[Muhammad Ahmad Shah]

Hi.

I'm trying to declare an uint16_t array while programming on the NRF52 Development kit as follows :

uint16_t FinalSignalArray[225000];

However, I keep getting the following errors:

.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching main.o(.bss).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching arm_startup_nrf52.o(STACK).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching app_uart_fifo.o(.bss).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching nrf_drv_uart.o(.bss).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching main.o(.data).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching app_uart_fifo.o(.data).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching system_nrf52.o(.data).
.\_build\nrf52832_xxaa.axf: Error: L6406E: No space in execution regions with .ANY selector matching errno.o(.data).
.\_build\nrf52832_xxaa.axf: Error: L6407E: Sections of aggregate size 0x6ff28 bytes could not fit into .ANY selector(s).

What should I do ? Please advise. :(

[Wojtek]

I am not sure, but that error may occur because that declaration tries to reserve 450kB in RAM, while nRF52 has 64kB RAM.

[Muhammad Ahmad Shah]

So does that mean that I cannot declare any such Array ? But I don't have much of a choice because my system needs an Array of size 225,000.

[Wojtek]

You can try to store it somewhere else, like in some external memory. Or if this is read-only array, you can allocate it in ROM memory instead (nRF52 has 512kB ROM as far as i remember), but you have to define it's values.

[Muhammad Ahmad Shah]

Fortunately, I have the values. How do I define the array to be stored in ROM ?

[Wojtek]

Probably something like that:

const uint16_t FinalSignalArray[10] = { 1, 2, 3, 4, 6, 7, 8, 9, 10};

But your array will be a bit longer.