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675d1c9c60
circuitpython/qemu-arm
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Damien George 675d1c9c60 ports: Remove typedef of machine_ptr_t, it's no longer needed. 
This type was used only for the typedef of mp_obj_t, which is now defined
by the object representation.  So we can now remove this unused typedef,
to simplify the mpconfigport.h file.
2016-08-15 11:02:59 +10:00
..
main.c py/runtime: mp_stack_ctrl_init() should be called immediately on startup. 2016-01-29 02:13:42 +02:00
Makefile qemu-arm: Enable gcc LTO option for nlrthumb.c 2016-07-11 12:04:56 +01:00
mpconfigport.h ports: Remove typedef of machine_ptr_t, it's no longer needed. 2016-08-15 11:02:59 +10:00
mphalport.h all: Add py/mphal.h and use it in all ports. 2015-10-31 19:14:30 +03:00
qstrdefsport.h qemu-arm: more generic port name. 2014-04-21 21:04:04 +01:00
README.md qemu: fix typo in readme 2014-07-02 18:30:46 +01:00
test_main.c py: Add MP_STATE_THREAD to hold state specific to a given thread. 2016-06-28 11:09:31 +01:00

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 agains 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.