20 lines
886 B
Plaintext
20 lines
886 B
Plaintext
Flash Stubs
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===========
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For most of the targets, these are assembler routines for executing
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a flash write on the supported targets. They are kept here for
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reference, but are not used, as the compiled binary code is included
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in the target drivers.
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For the STM32l0x, the stubs are written in C++ and emitted as arrays
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of half-words for inclusion in the target driver. The use of a higher
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level language allows more detailed code and for easy revisions.
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These stubs communicate with the driver through a structure defined in
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the src/include/stm32l0-nvm.h header.
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The dump-to-array.sh helper script uses sed to transform the output of
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'objdump -d' into a half-word array of the instructions that may be
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included in C code to declare the stub. FWIW, objcopy doesn't produce
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the same output as objdump. It omits some of the instructions,
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probably because the object file isn't linked.
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