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34 lines
1.2 KiB
Plaintext
34 lines
1.2 KiB
Plaintext
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Library: Atomthreads QEMU Stellaris LM3S6965 Platform.
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Author: Natie van Rooyen <natie@navaro.nl>
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License: BSD Revised
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QEMU Stellaris LM3S6965 Platform
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The "qemu_lm3s" platform contains sources for building a sample Atomthreads
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application for the Stellaris LM3S6965 platform.
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ISSUES:
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There seems to be several problems for the QEMU Cortex M3 processor. The
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platform and port contains specific hacks to make it work on the QEMU 1.2.0
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release it was tested on. Also see the latest patches for QEMU.
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Fixes implemented for the QEMU 1.2.0 release:
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1. Install the patch http://patchwork.ozlabs.org/patch/180315/
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2. Use the PLATFORM_QEMU_LM3S_HACK define in the Makefile:
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- Disabling interrupts on the processor does not work (verified).
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- Disabling interrupts of the Cortex M Sys Tick Interrupt does not
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work (verified).
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- NVIC Interrupt priorities not implemented correctly (not verified).
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Because of the problems with the Sys Tick Interrupt the The Stellaris
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General-Purpose Timer Module (GPTM) was used to generate the system timer
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tick.
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