Various tests/build for 4.8 on SPARKY, tested by AKfreak, add attributions
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Building for Ubuntu platform is remarkably easy. The only trick to understand is that the Ubuntu toolchain,
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which they are downstreaming from Debian, is not compatible with Cleanflight. We suggest that you take an
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alternative PPA from Terry Guo, found here:
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https://launchpad.net/~terry.guo/+archive/ubuntu/gcc-arm-embedded
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This PPA has several compiler versions and platforms available. For many hardware platforms (notably Naze)
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the 4.9.3 compiler will work fine. For some, older compiler 4.8 (notably Sparky) is more appropriate. We
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suggest you build with 4.9.3 first, and try to see if you can connect to the CLI or run the Configurator.
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If you cannot, please see the section below for further hints on what you might do.
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## Setup GNU ARM Toolchain
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Note specifically the last paragraph of Terry's PPA documentation -- Ubuntu carries its own package for
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@ -56,6 +60,20 @@ $ ls -la obj/cleanflight_NAZE.hex
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You can use the Cleanflight-Configurator to flash the ```obj/cleanflight_NAZE.hex``` file.
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## Bricked/Bad build?
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Users have reported that the 4.9.3 compiler for ARM produces bad builds, for example on the Sparky hardware platform.
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It is very likely that using an older compiler would be fine -- Terry happens to have also a 4.8 2014q2 build in his
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PPA - to install this, you can fetch the `.deb` directly:
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http://ppa.launchpad.net/terry.guo/gcc-arm-embedded/ubuntu/pool/main/g/gcc-arm-none-eabi/
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and use `dpkg` to install:
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```
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sudo dpkg -i gcc-arm-none-eabi_4-8-2014q2-0saucy9_amd64.deb
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```
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Make sure to remove `obj/` and `make clean`, before building again.
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## Updating and rebuilding
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Navigate to the local cleanflight repository and use the following steps to pull the latest changes and rebuild your version of cleanflight:
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@ -68,7 +86,4 @@ make clean TARGET=NAZE
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make
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```
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## Notes
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There are compiler issues with at least the Sparky target.
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Credit goes to K.C. Budd for doing the long legwork that yielded this very short document.
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Credit goes to K.C. Budd, AKfreak for testing, and pulsar for doing the long legwork that yielded this very short document.
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