nrf52 Bootloader_secure_ble

[hhuseyin]

Hello, I am using nrf52 with sdk 13.0.0. Bootloader_secure_ble gives error while compiling. What should I do ?

        Error[Lt009]: Inconsistent wchar_t size 
        micro_ecc_lib_uECC.c.o(micro_ecc_lib_nrf52.a) has wchar_t size 16 bits 
        app_error_weak.o and 66 other objects have wchar_t size 32 bits 

[bjorn-spockeli]

@hhuseyin: Just discussed this with one of our SW developers and according to him you need to use IAR v7.x as there are many changes, described here, that are not compatible with our SDK yet, i.e. will be in a future release. So, for now, stay with IAR v7.x and disregard my previous comment. Removing the -fshort-wchar flag may remove the linker errors, but we cant guarantee that the rest of the SDK source will behave as it is intended to with v8.x.

[Chris]

Bjørn - are your comments above regarding IAR v8.x still valid? I am running IAR 8.11.3, to date no IAR-related issues, but I've also just been using the nrf52832 as a MCU. I am now beginning to add in DFU and soon BLE as well, and I'd rather not have to debug IAR while debugging my code as well!

Note that I arrived at this post because I received the same error as hhuseyin. Please let me know if I should make the correction you recommend in the makefile, or if I need to move to an older version of IAR.

-Chris

[bjorn-spockeli]

Yes, we're still using IAR v7.80.4 for test and verfication of the latest SDK version, i.e. v14.2.0. THus, my recommendation would be to use IAR v7.x.x.

[Chris]

Thanks. Unfortunately IARv7.x versions are fairly old at this point, and I suspect we are going to have issues with our IAR license server supporting these older versions (but we are going to try nonetheless). I know this isn't really your problem, but it would be good to know if there is any documentation covering the issues I might run in to if I do proceed with an up-to-date version of IAR. Is there anything like this available?

[bjorn-spockeli]

Unfortunately, we do not have any documentation other than the cases reported here on DevZone. We're working on updating our build system to a newer version of IAR, but I cannot give you any ETA on this. So, my suggestion would be to try to downgrade the IAR version, if that is not possible then try searching for solutions on DevZone. If you cant find the solution for a issue here on DevZOne then you can contact us through our MyPage system and then we'll try to look through our internal support system.

[Chris]

Thanks. Looks like 7.8.4 still works with our license server - fingers crossed that this continues.