diff options
Diffstat (limited to 'demos/ARMCM3-STM32F103-G++/main.cpp')
| -rw-r--r-- | demos/ARMCM3-STM32F103-G++/main.cpp | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/demos/ARMCM3-STM32F103-G++/main.cpp b/demos/ARMCM3-STM32F103-G++/main.cpp new file mode 100644 index 000000000..ce626ee9c --- /dev/null +++ b/demos/ARMCM3-STM32F103-G++/main.cpp @@ -0,0 +1,176 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ch.hpp"
+#include "hal.h"
+#include "test.h"
+#include "evtimer.h"
+
+using namespace chibios_rt;
+
+/*
+ * LED blink sequences.
+ * NOTE: Sequences must always be terminated by a GOTO instruction.
+ * NOTE: The sequencer language could be easily improved but this is outside
+ * the scope of this demo.
+ */
+#define SLEEP 0
+#define GOTO 1
+#define STOP 2
+#define BITCLEAR 3
+#define BITSET 4
+
+typedef struct {
+ uint8_t action;
+ uint32_t value;
+} seqop_t;
+
+// Flashing sequence for LED1.
+static const seqop_t LED1_sequence[] =
+{
+ {BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 200},
+ {BITSET, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 800},
+ {BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 400},
+ {BITSET, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 600},
+ {BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 600},
+ {BITSET, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 400},
+ {BITCLEAR, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 800},
+ {BITSET, PAL_PORT_BIT(GPIOC_LED)},
+ {SLEEP, 200},
+ {GOTO, 0}
+};
+
+/*
+ * Sequencer thread class. It can drive LEDs or other output pins.
+ * Any sequencer is just an instance of this class, all the details are
+ * totally encapsulated and hidden to the application level.
+ */
+class SequencerThread : public EnhancedThread<128> {
+private:
+ const seqop_t *base, *curr; // Thread local variables.
+
+protected:
+ virtual msg_t Main(void) {
+ while (true) {
+ switch(curr->action) {
+ case SLEEP:
+ Sleep(curr->value);
+ break;
+ case GOTO:
+ curr = &base[curr->value];
+ continue;
+ case STOP:
+ return 0;
+ case BITCLEAR:
+ palClearPort(GPIOC, curr->value);
+ break;
+ case BITSET:
+ palSetPort(GPIOC, curr->value);
+ break;
+ }
+ curr++;
+ }
+ }
+
+public:
+ SequencerThread(const seqop_t *sequence) : EnhancedThread<128>("sequencer") {
+
+ base = curr = sequence;
+ }
+};
+
+/*
+ * Tester thread class. This thread executes the test suite.
+ */
+class TesterThread : public EnhancedThread<128> {
+
+protected:
+ virtual msg_t Main(void) {
+
+ return TestThread(&SD2);
+ }
+
+public:
+ TesterThread(void) : EnhancedThread<128>("tester") {
+ }
+};
+
+/*
+ * Executed as an event handler at 500mS intervals.
+ */
+static void TimerHandler(eventid_t id) {
+
+ (void)id;
+ if (palReadPad(GPIOA, GPIOA_BUTTON)) {
+ TesterThread tester;
+ tester.Wait();
+ };
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+ static const evhandler_t evhndl[] = {
+ TimerHandler
+ };
+ static EvTimer evt;
+ struct EventListener el0;
+
+ /*
+ * System initializations.
+ * - HAL initialization, this also initializes the configured device drivers
+ * and performs the board-specific initializations.
+ * - Kernel initialization, the main() function becomes a thread and the
+ * RTOS is active.
+ */
+ halInit();
+ System::Init();
+
+ /*
+ * Activates the serial driver 2 using the driver default configuration.
+ */
+ sdStart(&SD2, NULL);
+
+ evtInit(&evt, 500); // Initializes an event timer.
+ evtStart(&evt); // Starts the event timer.
+ chEvtRegister(&evt.et_es, &el0, 0); // Registers a listener on the source.
+
+ /*
+ * Starts several instances of the SequencerThread class, each one operating
+ * on a different LED.
+ */
+ SequencerThread blinker1(LED1_sequence);
+
+ /*
+ * Serves timer events.
+ */
+ while (true)
+ Event::Dispatch(evhndl, Event::WaitOne(ALL_EVENTS));
+
+ return 0;
+}
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