float printing error in PE

[syedidris]

Hi ,

We are working on KL03 processor (with KDS 3.0.0). We learnt how to make processor expert code and just trying to make simple hello_world printing code. Its working fine but float value is not printing so we change the properties of code as per screenshot, then it is showing some errors,

Our project code is as per the attachment.

Please guide how to print float value in PE code.

Original Attachment has been moved to: print.zip

[syedidris]

Thanks to DavidS​ and ZhangJennie​

Now its working,:smileyhappy:

[syedidris]

DavidS​ plz, can you suggest any solution?

[ZhangJennie · Accepted solution]

David's demo is great. just for supplement, with PE+KSDK, to print floating number,  make sure to have floating enabled in preprocessor.

Have a great day,
Jennie Zhang

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[DavidS]

Hi Syed,

Something was not right with your project and I couldn't easily get it working and am short on time.

Attached is my FRDM-KL03 KDS_3.0+KSDK_1.3+PE and setup to do floating point.

Please review the project Properties and code to how I have it working.

Regards,

David

[ZhangJennie]

Hi

I ever made video of how to how to use printf to print floating value in KDS3.0

see attached.

can this help you?

Have a great day,
Jennie Zhang

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[syedidris]

Zhang,

we tried your method but still It's giving the error.

[Alice_Yang]

Hello syed,

To use printf() with floating point, the option "-u _printf_float" needs to be added to the linker options,

about the detail information please refer to here :

printf() and scanf() with GNU ARM Libraries | MCU on Eclipse

Hope it helps

Alice

[syedidris]

Hi Alice,

thanks for your reply.

I added "-u _printf_float" in properties of our project, but it's not working as you can see in my project code.