git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@252 35acf78f-673a-0410-8e92-d51de3d6d3f4
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@ -30,6 +30,8 @@ using namespace chibios_rt;
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/*
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* LED blink sequences.
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* NOTE: Sequences must always be terminated by a GOTO instruction.
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* NOTE: The sequencer language could be easily improved but this is outside
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* the scope of this demo.
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*/
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#define SLEEP 0
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#define GOTO 1
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@ -42,6 +44,7 @@ typedef struct {
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uint32_t value;
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} seqop_t;
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// Flashing sequence for LED1.
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static const seqop_t LED1_sequence[] =
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{
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{BITCLEAR, 0x00000400},
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@ -51,6 +54,7 @@ static const seqop_t LED1_sequence[] =
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{GOTO, 0}
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};
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// Flashing sequence for LED2.
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static const seqop_t LED2_sequence[] =
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{
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{SLEEP, 1000},
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@ -61,6 +65,7 @@ static const seqop_t LED2_sequence[] =
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{GOTO, 1}
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};
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// Flashing sequence for LED3.
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static const seqop_t LED3_sequence[] =
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{
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{BITCLEAR, 0x80000000},
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@ -70,8 +75,10 @@ static const seqop_t LED3_sequence[] =
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{GOTO, 0}
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};
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/**
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/*
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* Sequencer thread class. It can drive LEDs or other output pins.
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* Any sequencer is just an instance of this class, all the details are
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* totally encapsulated and hidden to the application level.
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*/
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class SequencerThread : EnhancedThread<64> {
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private:
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@ -79,7 +86,6 @@ private:
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protected:
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virtual msg_t Main(void) {
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while (true) {
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switch(curr->action) {
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case SLEEP:
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@ -102,15 +108,14 @@ protected:
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}
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public:
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SequencerThread(const seqop_t *sequence):
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EnhancedThread<64>("sequencer", NORMALPRIO, 0) {
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SequencerThread(const seqop_t *sequence) : EnhancedThread<64>("sequencer") {
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base = curr = sequence;
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}
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};
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/*
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* Executed as event handler at 500mS intervals.
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* Executed as an event handler at 500mS intervals.
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*/
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static void TimerHandler(eventid_t id) {
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@ -120,6 +125,7 @@ static void TimerHandler(eventid_t id) {
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/*
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* Entry point, the interrupts are disabled on entry.
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* This is the real "application".
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*/
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int main(int argc, char **argv) {
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static const evhandler_t evhndl[] = {
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@ -130,9 +136,9 @@ int main(int argc, char **argv) {
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System::Init(); // ChibiOS/RT goes live here.
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evtInit(&evt, 500); // Initializes an event timer object.
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evtInit(&evt, 500); // Initializes an event timer.
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evtStart(&evt); // Starts the event timer.
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chEvtRegister(&evt.et_es, &el0, 0); // Registers on the timer event source.
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chEvtRegister(&evt.et_es, &el0, 0); // Registers a listener on the source.
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/*
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* Starts serveral instances of the SequencerThread class, each one operating
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@ -195,11 +195,26 @@ namespace chibios_rt {
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public:
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const char *name;
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/**
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* Full constructor. It allows to set a priority level for the new thread
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* and specify the special option flags.
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*/
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EnhancedThread(const char *tname, tprio_t prio, tmode_t mode) :
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BaseThread(prio, mode, wa, sizeof wa) {
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name = tname;
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}
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/**
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* Simplified constructor, it allows to create a thread by simply
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* specifying a name. In is assumed /p NORMALPRIO as initial priority
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* and no special option flags.
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*/
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EnhancedThread(const char *tname) :
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BaseThread(NORMALPRIO, 0, wa, sizeof wa) {
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name = tname;
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}
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};
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#ifdef CH_USE_SEMAPHORES
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