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tinygo/targets/nrf52840.json

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targets: let specific targets inherit more general targets This avoids a ton of duplication and makes it easier to change a generic target (for example, the "cortex-m" target) for all boards that use it. Also, by making it possible to inherit properties from a parent target specification, it is easier to support out-of-tree boards that don't have to be updated so often. A target specification for a special-purpose board can simply inherit the specification of a supported chip and override the properites it needs to override (like the programming interface).
6 years ago
{
"inherits": ["cortex-m"],
"llvm-target": "armv7em-none-eabi",
"build-tags": ["nrf52840", "nrf"],
"pre-link-args": [
"-nostdlib",
"-nostartfiles",
"-mcpu=cortex-m4",
"-mthumb",
"-T", "targets/nrf52840.ld",
"-Wl,--gc-sections",
"-fno-exceptions", "-fno-unwind-tables",
"-ffunction-sections", "-fdata-sections",
"-Os",
"-DNRF52840_XXAA",
"-Ilib/CMSIS/CMSIS/Include",
"lib/nrfx/mdk/system_nrf52840.c",
"src/device/nrf/nrf52840.s"
]
}