Casting zero (0) double variable to integer is incorrect

RE: Casting zero (0) double variable to integer is incorrect

AlekseyAK — Mon, 13 Jan 2020 08:42:46 GMT

Hi Simon.

I tested the project with the previous version of the SEGGER Embedded Studio 4.22 and problem is gone.

I will contact the SEGGER support team with it.

Thank you very much for your help.

With best regards, Aleksey.

RE: Casting zero (0) double variable to integer is incorrect

Simon — Thu, 09 Jan 2020 23:34:14 GMT

It seems like the issue is related to Segger Embedded Studio. If you look at your assembly code, you can see that __aeabi_d2iz is used for casting. In my generated assembly code, __fixdfsi is used. I am using SES 3.40. I tried to upgrade to SES v4.30c and encounter the same issue as you.

Some solutions:

You could downgrade SES
You could create a support ticket on the SES technical support site and ask about this
I can look into it and try to find a quick fix

Best regards,

Simon

RE: Casting zero (0) double variable to integer is incorrect

AlekseyAK — Thu, 09 Jan 2020 10:38:32 GMT

Hi Simon,

Yes, compiler type and standard are set as at the picture. The problem reproduces on nRF52832DK board and on our specific device based on nRF52832 MCU.

Best regards,

Aleksey.

RE: Casting zero (0) double variable to integer is incorrect

Simon — Fri, 03 Jan 2020 09:50:22 GMT

I tested your example with an nRF52832 DK, and it worked fine:

Does your compiler options look like this:

Best regards,

Simon

RE: Casting zero (0) double variable to integer is incorrect

AlekseyAK — Fri, 27 Dec 2019 10:24:18 GMT

Hi Simon,

Here the link to the test project, where I am able to reproduce the issue.

https://drive.google.com/file/d/1lulj2b3rdxqP_AFQBdMHFg2-38J9euSa/view?usp=sharing

Also, here is the screenshot of debugging process.

Regards, Aleksey.

RE: Casting zero (0) double variable to integer is incorrect

Simon — Fri, 27 Dec 2019 09:18:27 GMT

I am not able to reproduce your behavior. In both cases, I got '0' as a result in both of the cases. I copied your code into the twi_scanner nRF5 SDK example (logging enabled).

Could you share your code? I can make the ticket private if you would like to.

Best regards,

Simon