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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@671 35acf78f-673a-0410-8e92-d51de3d6d3f4
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@ -202,11 +202,16 @@ struct context {
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/**
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* This port function is implemented as inlined code for performance reasons.
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* @note The port code does not define a low poer mode, this macro has to be
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* defined externally. The default implementation is a "nop", not a
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* real low power mode.
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*/
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#if ENABLE_WFI_IDLE != 0
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#ifndef port_wait_for_interrupt
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#define port_wait_for_interrupt() { \
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asm volatile ("wfi"); \
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asm volatile ("nop"); \
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}
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#endif
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#else
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#define port_wait_for_interrupt()
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#endif
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@ -22,7 +22,8 @@
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* order to formally change state because this may change).
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* - <b>Serving Regular Interrupt</b>. Normal interrupt service code.
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* - <b>Serving Fast Interrupt</b>. Not present in this architecture.
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* - <b>Serving Non-Maskable Interrupt</b>. Not present in this architecture.
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* - <b>Serving Non-Maskable Interrupt</b>. The MSP430 has several non
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* maskable interrupt sources that can be associated to this state.
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* - <b>Halted</b>. Implemented as an infinite loop with interrupts disabled.
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*
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* @section MSP430_NOTES The MSP430 port notes
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@ -30,6 +31,12 @@
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* enough stack space for interrupts in each thread stack. This can be done
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* by modifying the @p INT_REQUIRED_STACK macro into
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* <b>./ports/MSP430/chcore.h</b>.
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* - The state of the hardware multiplier is not saved in the thread context,
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* make sure to use it in <b>Suspended</b> state (interrupts masked).
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* - The port code does not define the switch to a low power mode for the
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* idle thread because the MSP430 has several low power modes. You can
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* select the proper low power mode for you application by defining the
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* macro @p port_wait_for_interrupt().
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*
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* @ingroup Ports
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*/
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