### Author:  [@dhaval](https://community.particle.io/u/dhaval)
#### Post date: [November 16, 2015, 1:24pm UTC](https://community.particle.io/t/build-firmware-for-photon/17497/1 "2015-11-16T13:24:27Z")
Hi,
I am trying to build the Firmware for Photon. For that I cloned core-firmware, core-communication-lib and core-common-lib repositories. I also downloaded and install/setup ‘make’ and GNU toolchain for Windows7 . Then I go to core-firmware/build directory and run make command. But it is giving me following error:
make: \*\*\* No targets specified and no makefile found. Stop.
This error seems obvious as there is not Makefile present in that directory. Please note, I got this direction from some document. Then I go to the core-firmware/main directory and run ‘make clean all PLATFORM=photon’, but I am getting following error:
make -C …/modules/photon/user-part clean
make: Interrupt/Exception caught (code = 0xc00000fd, addr = 0x4227d3)
make: \*\*\* [clean\_modules/photon/user-part] Error 255
Can someone please help me to resolve this?
Thanks,
Dhaval
---
### Author:  [@Moors7](https://community.particle.io/u/Moors7)
#### Post date: [November 16, 2015, 2:07pm UTC](https://community.particle.io/t/build-firmware-for-photon/17497/2 "2015-11-16T14:07:57Z")
Have you seen/used these instructions?
>
---
### Author:  [@peekay123](https://community.particle.io/u/peekay123)
#### Post date: [November 16, 2015, 2:15pm UTC](https://community.particle.io/t/build-firmware-for-photon/17497/3 "2015-11-16T14:15:15Z")
@dhaval, for the Photon, you need to clone the `develop` branch and make sure you have the entire toolchain installed. The Photon firmware is comprised of a system firmware part and a user firmware part. To compile the system firmware go to the `modules` directory and make from there. For example, to compile the latest develop firmware and flash it to a Photon via DFU:
```auto
make clean all PARTICLE_DEVELOP=1 PLATFORM=photon program-dfu
```
This assumes you have a Photon connected via USB and in DFU mode (flashing yello).
To compile your app, you will find a `user\application` directory (under the main firmware directory). There you can create a directory and put all the files you want to compile (including libraries, etc) into that directory (no sub-directories). Then to make and flash your code to a Photon in DFU mode:
```auto
make clean all PARTICLE_DEVELOP=1 PLATFORM=photon program-dfu APP=appname
```
where `appname` is the name of the directory where you placed your files to compile.
😄
---
### Author:  [@dhaval](https://community.particle.io/u/dhaval)
#### Post date: [November 17, 2015, 4:48am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/4 "2015-11-17T04:48:57Z")
Hi @Moors7
Yes I followed from that getting started document. And I got those error after that only.
Thanks,
Dhaval
---
### Author:  [@dhaval](https://community.particle.io/u/dhaval)
#### Post date: [November 17, 2015, 4:51am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/5 "2015-11-17T04:51:32Z")
Hi @peekay123
I have tried to build the firmware as you have mentioned:
git checkout develop
make clean all PARTICLE\_DEVELOP=1 PLATFORM=photon
But still it is giving the same error:
make: Interrupt/Exception caught (code = 0xc00000fd, addr = 0x4227d3)
Thanks,
Dhaval
---
### Author:  [@ScruffR](https://community.particle.io/u/ScruffR)
#### Post date: [November 17, 2015, 8:52am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/6 "2015-11-17T08:52:38Z")
> [@peekay123](#):
>
> To compile the system firmware go to the modules directory and make from there.
> ...
> To compile your app, you will find a user\application directory (under the main firmware directory)
I can't see this in your procedure
> [@dhaval](#):
>
> git checkout develop
> make clean all PARTICLE\_DEVELOP=1 PLATFORM=photon
As Paul said, you'd need to `cd` into the required directory before calling `make`
And in the Photon develop branch there should not be a `core-firmware/main`.
---
### Author:  [@dhaval](https://community.particle.io/u/dhaval)
#### Post date: [November 17, 2015, 9:03am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/7 "2015-11-17T09:03:10Z")
@ScruffR Thanks for you quick reply!
I got it… I want to build the firmware for Photon hardware, not for the CORE. I download checkout the firmware from ‘[https://github.com/spark/core-firmware.git](https://github.com/spark/core-firmware.git)’. Is it correct?
I want to trace the function call for analogRead() in this firmware. Can you please help me on that?
Thanks,
Dhaval
---
### Author:  [@ScruffR](https://community.particle.io/u/ScruffR)
#### Post date: [November 17, 2015, 9:15am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/8 "2015-11-17T09:15:34Z")
I’d still go with the develop branch but build from `main` with e.g. `make clean all PARTICLE_DEVELOP=1 PLATFORM=core APP=tinker` (for Tinker).
---
### Author:  [@dhaval](https://community.particle.io/u/dhaval)
#### Post date: [November 20, 2015, 8:22am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/9 "2015-11-20T08:22:46Z")
Thanks for your support @Moors7, @peekay123, @ScruffR… I am able to build the firmware on Linux machine.
But still I am not able to build it on Windows system… Getting same error.
---
### Author:  [@ScruffR](https://community.particle.io/u/ScruffR)
#### Post date: [November 20, 2015, 8:34am UTC](https://community.particle.io/t/build-firmware-for-photon/17497/10 "2015-11-20T08:34:00Z")
Do you get any other error or like something about `stat.exe` failing?
I had this once (or still have it, if I use a wrong CMD instance) and it was a problem with the PATH.
Have a look at your PATH if something looks fishy (e.g. double entries).
You could also try [this installer](https://community.particle.io/t/toolchain-for-windows-installer/13217) (maybe after you removed any previous toolchain - including PATH entries)