Have a problem with compile under GCC

RE: Have a problem with compile under GCC

jdog — Sun, 12 Nov 2017 10:48:20 GMT

You are a lifesaver. Thanks so much, this sorted out the issue for me.

RE: Have a problem with compile under GCC

Roger Clark — Tue, 13 Sep 2016 22:41:00 GMT

The

TARGETS           := nrf51422_xxac

line in the makefile is effectively just a name, it is not used to determine which files are included etc and its not a compiler pre-processor define either.

The HRS peripheral example can definitely be made to work on QFAA just by changing the linker file

Try SDK 11

\examples\ble_peripheral\ble_app_hrs\pca10028\s130\armgcc\

and change ble_app_hrs_gcc_nrf51.ld

to these settings

MEMORY
{
  FLASH (rx) : ORIGIN = 0x1b000, LENGTH = 0x25000
  RAM (rwx) :  ORIGIN = 0x20002080, LENGTH = 0x1f80
}

, and give it a try on your QFAA . It worked for me.

RE: Have a problem with compile under GCC

IlyaM — Tue, 13 Sep 2016 10:22:31 GMT

It seems to me SDK 12 works only with QFAC chips, cause makefile has the next line

TARGETS          := nrf51422_xxac

And SDK 11 too, what is the latest version of SDK for suitable for QFAA package?

UPD: I just checked QFAC, it was compiled well and flashed without errors.

RE: Have a problem with compile under GCC

Roger Clark — Tue, 13 Sep 2016 10:01:07 GMT

QFAA = 256 flash, 16k RAM QFAB = 128k flash 16k RAM QFAC = 256k flash 32k RAM

This information was posted recently in response to another similar question. Its also in the nRF51822 product specification document

I'm not sure why it used to work in SDK 6, I suspect the linker file was different.

Just modify you linker file and reduce the RAM size by 0x4000 if you want to try to build for the QFAA

Note. Some examples will not build with only 16k and you will get a linker error. e.g. The proximity example would not build for me when I changed the linker file to support QFAA

RE: Have a problem with compile under GCC

IlyaM — Tue, 13 Sep 2016 09:39:15 GMT

I didn't try QFAC, will do it a lil bit later. So if I can't compile QFAA by gcc, how can I compile it? Or maybe I have to change linker settings for this purposes? As far as I remember I did well it with sdk 6 and it used gcc too. Is there a document where I can find the differences between QF packages?

RE: Have a problem with compile under GCC

Roger Clark — Tue, 13 Sep 2016 06:00:07 GMT

The gcc files won't run on the QFAA as the linker settings are for the QFAC and the stack ends up outside the RAM.

Does it definitely not work on QFAC ?

RE: Have a problem with compile under GCC

IlyaM — Tue, 13 Sep 2016 05:50:12 GMT

Nrf51822 QFAAH0 and nrf51822 QFACA1 I tried with QFAAH0 previously

RE: Have a problem with compile under GCC

Roger Clark — Tue, 13 Sep 2016 05:32:11 GMT

If it works with the precompile files its a linker RAM size / location issue.

Is your device nRF51822QFAA ?

RE: Have a problem with compile under GCC

IlyaM — Tue, 13 Sep 2016 05:04:08 GMT

Thanks for your reply. My board was flashed by s130, I checked twice. And you mentioned my board could be too old, but I can flash it with pre compiled files from hex folder which were downloaded together with SDK.

I checked, I have 2 chips, the first one is QFAAH0 and the second is QFACA1

RE: Have a problem with compile under GCC

Roger Clark — Mon, 12 Sep 2016 23:36:03 GMT

The Makefile errors are a issue in SDK 12. Nordic are aware of this (as I reported it) and I believe it will get fixed in a later release of the SDK.

You can ignore those errors or just remove those lines from the Makefile

Re: Code not running

The SDK code is targetted at the QFAC device with 32k RAM. If you are using an nRF51822QFAA it will not work

This can be fixed for the Blink example by changing the linker file and reducing the RAM size by 0x4000

However, the other possible cause is that your nRF51822 device is too old if its a QFAA

You need to have QFAAH0 or newer to use V12 of the SDK with the S130 SD

Another possible cause of problems is that you have not actually managed to upload the code or the soft device

I presume you have pre-flashed the S130 V2.0 SD to the device and also you have read back the chip to confirm that the SD is installed.

Then you need to do the same thing with the application code.

I'd also recommend you think about using some other method to upload, e.g. BlackMagic Probe - as I think that can be flashed to the STlink hardware