#include "arm_math.h"

[drbytes]

Hi, I installed all the relevant software packs in Keil uVision ... at least that what I thought but I get a compilation error in main.c around line
47: #include "arm_math.h"
resulting in

Src\main.c(47): error:  #5: cannot open source input file "arm_math.h": No such file or directory
  #include "arm_math.h" 

Do you know what I'm missing? (keil n00b)

[drbytes]

I've commented the line and it builds.

[pieterjanbuntinx]

You have to include the path C:\Keil_v5\ARM\PACK\ARM\CMSIS\5.4.0\CMSIS\Include in the "Options for Target..." > C/C++. Afterwards it compiles al the c-files but it gets stuck on the other issue that's reported in this repo.

[Johnvan]

I have a similar problem with an adafruit MP3 program that uses arm_math.h, what do I have to do to fix this thing.
ERROR: arm_math.h: No such file or directory

[pieterjanbuntinx]

It now works for me. To solve the other error I got I had to enable this:

[Johnvan]

I have no idea what you are trying to tell me about Enabling this, what and how. Where is this Options for Target.

[gaucho1978]

You have to include the path C:\Keil_v5\ARM\PACK\ARM\CMSIS\5.4.0\CMSIS\Include in the "Options for Target..." > C/C++. Afterwards it compiles al the c-files but it gets stuck on the other issue that's reported in this repo.

in my case the correct folder is: C:\Users\GauchoHP\AppData\Local\Arm\Packs\ARM\CMSIS\5.5.1\CMSIS\Include

after doing this it correctly compile.

[renmalek7]

Hi. Were you able to flash this firmware?

[Johnvan]

I updated my IDE and the fault went away. Thankyou for your assistance however, much appreciated.

[weiminshen99]

The <arm_math.h> and other related .h files may also be found at this repository:
https://github.com/PaulStoffregen/arm_math