How to include trigonometric functions into direction finding connectionless rx code?

RE: How to include trigonometric functions into direction finding connectionless rx code?

Rishitha — Thu, 04 May 2023 06:43:26 GMT

Okay got it. Thanks.

RE: How to include trigonometric functions into direction finding connectionless rx code?

Elfving — Tue, 25 Apr 2023 10:51:45 GMT

So it does build now, but it doesn't get executed?

I see here that it might be that you'll have to add these files in yourself if they still do not get included.

Regards,

Elfving

RE: How to include trigonometric functions into direction finding connectionless rx code?

Rishitha — Tue, 25 Apr 2023 09:21:06 GMT

Yes, I have included CONFIG_NEWLIB_LIBC=y in configuration file already but atan2() is not getting executed and math.h is present in the directory you mentioned. What should I do for atan2() to get executed properly.

RE: How to include trigonometric functions into direction finding connectionless rx code?

Elfving — Tue, 25 Apr 2023 07:27:22 GMT

Hello,

Did you add CONFIG_NEWLIB_LIBC=y in your configuration file?

[quote user="Rishitha"]Can I know where the math.h file need to be present, I mean in which module it has to be present?[/quote]

It should already be present in C:\Users\[name]\ncs\toolchains\v2.3.0\opt\zephyr-sdk\arm-zephyr-eabi\arm-zephyr-eabi\sys-include. Do you see it there?

Regards,

Elfving

RE: How to include trigonometric functions into direction finding connectionless rx code?

Rishitha — Tue, 25 Apr 2023 05:10:10 GMT

Hello,

The hello world sample is also not working. Can I know where the math.h file need to be present, I mean in which module it has to be present?

Thankyou.

RE: How to include trigonometric functions into direction finding connectionless rx code?

Elfving — Mon, 24 Apr 2023 11:44:34 GMT

Try math.h, not the one in zephyr/blueooth/.

Does this modified hello world sample work for you?

/*
 * Copyright (c) 2012-2014 Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/kernel.h>
#include <zephyr/logging/log.h>
#include <math.h>

LOG_MODULE_REGISTER(hello_world,LOG_LEVEL_DBG);
void main(void)
{
	printk("Hello World! %s\n", CONFIG_BOARD);
	printk("And hello mr. atan: %f\n",atan2(3,2));
}

Regards,

Elfving

RE: How to include trigonometric functions into direction finding connectionless rx code?

Rishitha — Mon, 24 Apr 2023 05:31:16 GMT

Hello, I am still facing the same issue even though I have included math.h.

RE: How to include trigonometric functions into direction finding connectionless rx code?

Elfving — Fri, 21 Apr 2023 07:17:22 GMT

You can see the functions you have available to you here. Try atan2().

Regards,

Elfving

RE: How to include trigonometric functions into direction finding connectionless rx code?

Rishitha — Fri, 21 Apr 2023 05:21:50 GMT

Thankyou that has helped in resolving the error. However, atan() function is not recognised and therefore I am unable to display the angle.

RE: How to include trigonometric functions into direction finding connectionless rx code?

Elfving — Thu, 20 Apr 2023 12:18:32 GMT

Hello,

Could you try adding the header #include <math.h>,

and adding the config CONFIG_NEWLIB_LIBC=y to your configuration file?

Regards,

Elfving