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Stack overflow often happens from interrupt handlers sitting on top of
a task stack. Check for this during ao_wakeup as that is often called
during interrupt processing.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Using ao_arch_critical around the wchan setting will force interrupts
to be re-enabled before ao_yield records the state of that bit,
potentially causing problems with functions not atomically testing and
sleeping.
Tasks that need to set wchan with interrupts disabled should have
interrupts disabled when entering ao_sleep already.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Would truncate 32-bit pointers on arm.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Uses the radio_cmac module to provide secure communication.
Keeps igniter closed for 500ms.
Provides remote status for arming and ignition.
Signed-off-by: Keith Packard <keithp@keithp.com>
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This completes the basic task of making an AVR version of altos by
getting the Teensy 'avr-demo' program to build.
Signed-off-by: Keith Packard <keithp@keithp.com>
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More arch-indepdency bits.
GCC stdio is different from SDCC, so create suitable code in
avr/ao_avr_stdio.c
Create macros to initialize the task stack frame and save the task
context.
Add GCC/SDCC type definition compatibility macros
Signed-off-by: Keith Packard <keithp@keithp.com>
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Split out sources into separate directories:
core: architecture and product independent bits
cc1111: cc1111-specific code
drivers: architecture independent drivers
product: product-specific sources and Makefile fragments
util: scripts for building stuff
This should have no effect on the built products, but testing is encouraged
Signed-off-by: Keith Packard <keithp@keithp.com>
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