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micropython/ports/qemu-arm/README.md
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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 the [GNU ARM Embedded Toolchain]( | |
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads | |
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. | |
To build and run image with builtin testsuite: | |
make -f Makefile.test test |