Region `FLASH' overflowed by X bytes

[mappy89]

Hello everybody!

I'm developing an application using CMSIS DSP library, so i included about 20 math files and using finctions from these files.

After compiling i get a linker errror:

1>            FLASH:      417260 B       256 KB    159.17%
1>             SRAM:       43728 B       128 KB     33.36%
1> c:/gnuarmemb/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld.exe: zephyr\zephyr_prebuilt.elf section `rodata' will not fit in region `FLASH'
1> c:/gnuarmemb/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld.exe: region `FLASH' overflowed by 155116 bytes
1> collect2.exe: error: ld returned 1 exit status

 

As i know, NRF9160 has 1 Mb of FLASH, but linker tells that i have overflow of 256 Kb.

How can i fix this problem with linker or smth else in this situation?

Thank you!

[mappy89]

Yes, nrf9160_pca10090

[Hakon]

You don't have an overflow of 256KB, it says you have 256KB left of storage on the flash. Do you have anything else flashed on the chip?

[mappy89]

My project based on the working sample  (ncs\nrf\samples\nrf9160\adc\).

It's uses Zephyr OS. 

So there is nothing else except this modified project.

[Hakon]

If you try building some other project, do you get the same linker error or does it tell you have 256 KB available there as well?

[mappy89]

Yes, every example project from NRF9160 compiles and works well.

So, as I understand CMSIS DSP libvs have a lot of flash memory, and the message

" FLASH:      417260 B       256 KB    159.17%"

doesn't mean, that i use only PART of my flash memory?