I'm trying to document the process of creating a custom BSP based on an
existing model from apache-newt-core, and copied the model into the
local `projectroot/hw/bsp/boardname` folder, updated the `pkg.yml` file,
and modified the filenames/content accordingly. I then referenced this
BSP in the bootloader and main application target via newt.
When I reference the local `hw/bsp/boardname` instance and then try to
build I get the following error, though:
$ newt -v build nrf51_boot
Building target targets/nrf51_boot
panic: interface conversion: interfaces.PackageInterface is nil, not
*pkg.LocalPackage
goroutine 1 [running]:
panic(0x4f6b00, 0xc820493680)
/usr/local/Cellar/go/1.6/libexec/src/runtime/panic.go:464 +0x3e6
mynewt.apache.org/newt/newt/builder.(*Builder).resolveCompiler(0xc82013bc80,
0xc8201ac3c0)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/builder/buildutil.go:102
+0x17c
mynewt.apache.org/newt/newt/builder.(*Builder).PrepBuild(0xc82013bc80,
0x0, 0x0)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/builder/build.go:313
+0x238
mynewt.apache.org/newt/newt/builder.(*Builder).Build(0xc82013bc80,
0x0, 0x0)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/builder/build.go:413
+0x8e
mynewt.apache.org/newt/newt/cli.buildRunCmd(0xc820127a00,
0xc820105720, 0x1, 0x2)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/cli/build_cmds.go:76
+0x5fe
mynewt.apache.org/newt/newt/vendor/github.com/spf13/cobra.(*Command).execute(0xc820127a00,
0xc8201055c0, 0x2, 0x2, 0x0, 0x0)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/vendor/github.com/spf13/cobra/command.go:569
+0x85a
mynewt.apache.org/newt/newt/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xc820126000,
0xc820127a00, 0x0, 0x0)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/vendor/github.com/spf13/cobra/command.go:656
+0x55c
mynewt.apache.org/newt/newt/vendor/github.com/spf13/cobra.(*Command).Execute(0xc820126000,
0x0, 0x0)
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/vendor/github.com/spf13/cobra/command.go:615
+0x2d
main.main()
/Users/ktown/prog/go/src/mynewt.apache.org/newt/newt/newt.go:123 +0x70
When I move the `projectroot/hw/bsp/boardname` files in
`projectroot/repos/apache-newt-core/hw/bsp/boardname` and then point the
targets there, everything builds fine, but I'm not sure what the secret
is to having local BSPs outside the main newt repo?
I thought the problem might be the dependency paths in my BSP pkg.yml
file but even updating them as shown below throws the same error when
trying to build (prepending `aapache-newt-core` to the dependency since
the root path changed when the BSP was copied locally):
pkg.deps:
- @apache-newt-core/hw/mcu/nordic/nrf51xxx
- @apache-newt-core/libs/baselibc
pkg.deps.BLE_DEVICE:
- @apache-newt-core/net/nimble/drivers/nrf51
Is there a restriction on having local BSP definitions for different
board targets, or perhaps I'm just missing something obvious? I can
build putting them in the apache-newt-core repo, but that's probably the
wrong place for a project-specific BSP or board variant?
