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circuitpython/qemu-arm
Dan Halbert ef61b5ecb5 Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
..
Makefile all: Make use of $(TOP) variable in Makefiles, instead of "..". 5 years ago
README.md various: Spelling fixes 6 years ago
main.c qemu-arm: Move lexer constructors to within NLR handler block. 6 years ago
modmachine.c qemu-arm: Enable machine module and associated tests. 6 years ago
moduos.c ports: Add ilistdir in uos module. 6 years ago
mpconfigport.h Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 5 years ago
mphalport.h qemu-arm: Enable lots of extmods and enable tests for them. 6 years ago
qstrdefsport.h qemu-arm: more generic port name. 9 years ago
test_main.c qemu-arm: Move lexer constructors to within NLR handler block. 6 years ago

README.md

This is experimental, community-supported port for Cortex-M emulation as provided by QEMU (http://qemu.org).

The purposes of this port are to enable:

  1. Continuous integration
    • run tests against architecture-specific parts of code base
  2. Experimentation
    • simulation & prototyping of anything that has architecture-specific code
    • exploring instruction set in terms of optimising some part of MicroPython or a module
  3. Streamlined debugging
    • no need for JTAG or even an MCU chip itself
    • no need to use OpenOCD or anything else that might slow down the process in terms of plugging things together, pressing buttons, etc.

This port will only work with with GCC ARM Embedded toolchain and not with CodeSourcery toolchain. You will need to modify LDFLAGS if you want to use CodeSourcery's version of arm-none-eabi. The difference is that CodeSourcery needs -T generic-m-hosted.ld while ARM's version requires --specs=nano.specs --specs=rdimon.specs to be passed to the linker.