Simple "Blinky" example for the QP active object framework
Fork of qp_dpp by
bsp.cpp
- Committer:
- QL
- Date:
- 2014-10-12
- Revision:
- 7:80bbc7a6c78c
- Parent:
- 4:6189d844a1a2
File content as of revision 7:80bbc7a6c78c:
#include "qp_port.h" #include "blinky.h" #include "bsp.h" #include "LPC17xx.h" #ifdef Q_SPY #include "mbed.h" // mbed is used only for the built-in serial #endif ////////////////////////////////////////////////////////////////////////////// Q_DEFINE_THIS_FILE enum ISR_Priorities { // ISR priorities starting from the highest urgency GPIOPORTA_PRIO, SYSTICK_PRIO // ... }; // Local-scope objects ------------------------------------------------------- #define LED_PORT LPC_GPIO1 #define LED1_BIT (1U << 18) #define LED2_BIT (1U << 20) #define LED3_BIT (1U << 21) #define LED4_BIT (1U << 23) #ifdef Q_SPY QP::QSTimeCtr l_tickTime; QP::QSTimeCtr l_tickPeriod; static uint8_t l_SysTick_Handler; #define QSPY_BAUD_RATE 115200U Serial l_qspy(USBTX, USBRX); #endif //............................................................................ extern "C" void SysTick_Handler(void) { QK_ISR_ENTRY(); // inform the QK kernel of entering the ISR #ifdef Q_SPY uint32_t volatile dummy = SysTick->CTRL; // clear the COUNTFLAG in SysTick l_tickTime += l_tickPeriod; // account for the clock rollover #endif QP::QF::TICK(&l_SysTick_Handler); // process all armed time events QK_ISR_EXIT(); // inform the QK kernel of exiting the ISR } //............................................................................ void BSP_init(void) { // set the system clock as specified in lm3s_config.h (20MHz from PLL) SystemInit(); // set LED port to output LED_PORT->FIODIR |= (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT); // clear the LEDs LED_PORT->FIOCLR = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT); // initialize the QS software tracing... Q_ALLEGE(QS_INIT(static_cast<void *>(0))); QS_RESET(); QS_OBJ_DICTIONARY(&l_SysTick_Handler); } //............................................................................ void BSP_terminate(int16_t const result) { (void)result; } //............................................................................ void BSP_ledOn(void) { LED_PORT->FIOSET = LED1_BIT; } //............................................................................ void BSP_ledOff(void) { LED_PORT->FIOCLR = LED1_BIT; } //............................................................................ extern "C" void Q_onAssert(char_t const * const file, int_t const line) { (void)file; // avoid compiler warning (void)line; // avoid compiler warning QF_INT_DISABLE(); // make sure that all interrupts are disabled // light up all LEDs LED_PORT->FIOSET = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT); for (;;) { // NOTE: replace the loop with reset for final version } } ////////////////////////////////////////////////////////////////////////////// namespace QP { //............................................................................ void QF::onStartup(void) { // set up the SysTick timer to fire at BSP_TICKS_PER_SEC rate (void)SysTick_Config(SystemCoreClock / BSP_TICKS_PER_SEC); // set priorities of all interrupts in the system... NVIC_SetPriority(SysTick_IRQn, SYSTICK_PRIO); NVIC_SetPriority(EINT0_IRQn, GPIOPORTA_PRIO); NVIC_EnableIRQ(EINT0_IRQn); } //............................................................................ void QF::onCleanup(void) { } //............................................................................ #ifdef QK_PREEMPTIVE void QK::onIdle(void) { QF_INT_DISABLE(); LED_PORT->FIOSET = LED4_BIT; // turn the LED4 on __NOP(); // delay a bit to see some light intensity __NOP(); __NOP(); __NOP(); LED_PORT->FIOCLR = LED4_BIT; // turn the LED4 off QF_INT_ENABLE(); #ifdef Q_SPY if (DPP::l_qspy.writeable()) { QF_INT_DISABLE(); uint16_t b = QS::getByte(); QF_INT_ENABLE(); if (b != QS_EOD) { DPP::l_qspy.putc((uint8_t)b); } } #else // Put the CPU and peripherals to the low-power mode. You might need to // customize the clock management for your application, see the datasheet // for your particular Cortex-M3 MCU. // // Specifially for the mbed board, see the articles: // * "Power Management" http://mbed.org/cookbook/Power-Management; and // * "Interface Powerdown" at // http://mbed.org/users/simon/notebook/interface-powerdown/ // __WFI(); #endif } #else // non-preemptive Vanilla kernel void QF::onIdle(void) { // NOTE: called with interrupts DISABLED LED_PORT->FIOSET = LED4_BIT; // turn the LED4 on __NOP(); // delay a bit to see some light intensity __NOP(); __NOP(); __NOP(); LED_PORT->FIOCLR = LED4_BIT; // turn the LED4 off #ifdef Q_SPY QF_INT_ENABLE(); if (DPP::l_qspy.writeable()) { QF_INT_DISABLE(); uint16_t b = QS::getByte(); QF_INT_ENABLE(); if (b != QS_EOD) { DPP::l_qspy.putc((uint8_t)b); } } #else // Put the CPU and peripherals to the low-power mode. You might need to // customize the clock management for your application, see the datasheet // for your particular Cortex-M3 MCU. // // Specifially for the mbed board, see the articles: // * "Power Management" http://mbed.org/cookbook/Power-Management; and // * "Interface Powerdown" at // http://mbed.org/users/simon/notebook/interface-powerdown/ // __WFI(); QF_INT_ENABLE(); #endif } #endif // QK_PREEMPTIVE //---------------------------------------------------------------------------- #ifdef Q_SPY //............................................................................ bool QS::onStartup(void const *arg) { static uint8_t qsBuf[6*256]; // buffer for Quantum Spy initBuf(qsBuf, sizeof(qsBuf)); DPP::l_qspy.baud(QSPY_BAUD_RATE); DPP::l_tickPeriod = SystemCoreClock / DPP::BSP_TICKS_PER_SEC; DPP::l_tickTime = DPP::l_tickPeriod; // to start the timestamp at zero // setup the QS filters... QS_FILTER_ON(QS_ALL_RECORDS); // QS_FILTER_OFF(QS_QEP_STATE_EMPTY); // QS_FILTER_OFF(QS_QEP_STATE_ENTRY); // QS_FILTER_OFF(QS_QEP_STATE_EXIT); // QS_FILTER_OFF(QS_QEP_STATE_INIT); // QS_FILTER_OFF(QS_QEP_INIT_TRAN); // QS_FILTER_OFF(QS_QEP_INTERN_TRAN); // QS_FILTER_OFF(QS_QEP_TRAN); // QS_FILTER_OFF(QS_QEP_IGNORED); // QS_FILTER_OFF(QS_QF_ACTIVE_ADD); // QS_FILTER_OFF(QS_QF_ACTIVE_REMOVE); // QS_FILTER_OFF(QS_QF_ACTIVE_SUBSCRIBE); // QS_FILTER_OFF(QS_QF_ACTIVE_UNSUBSCRIBE); // QS_FILTER_OFF(QS_QF_ACTIVE_POST_FIFO); // QS_FILTER_OFF(QS_QF_ACTIVE_POST_LIFO); // QS_FILTER_OFF(QS_QF_ACTIVE_GET); // QS_FILTER_OFF(QS_QF_ACTIVE_GET_LAST); // QS_FILTER_OFF(QS_QF_EQUEUE_INIT); // QS_FILTER_OFF(QS_QF_EQUEUE_POST_FIFO); // QS_FILTER_OFF(QS_QF_EQUEUE_POST_LIFO); // QS_FILTER_OFF(QS_QF_EQUEUE_GET); // QS_FILTER_OFF(QS_QF_EQUEUE_GET_LAST); // QS_FILTER_OFF(QS_QF_MPOOL_INIT); // QS_FILTER_OFF(QS_QF_MPOOL_GET); // QS_FILTER_OFF(QS_QF_MPOOL_PUT); // QS_FILTER_OFF(QS_QF_PUBLISH); // QS_FILTER_OFF(QS_QF_NEW); // QS_FILTER_OFF(QS_QF_GC_ATTEMPT); // QS_FILTER_OFF(QS_QF_GC); // QS_FILTER_OFF(QS_QF_TICK); // QS_FILTER_OFF(QS_QF_TIMEEVT_ARM); // QS_FILTER_OFF(QS_QF_TIMEEVT_AUTO_DISARM); // QS_FILTER_OFF(QS_QF_TIMEEVT_DISARM_ATTEMPT); // QS_FILTER_OFF(QS_QF_TIMEEVT_DISARM); // QS_FILTER_OFF(QS_QF_TIMEEVT_REARM); // QS_FILTER_OFF(QS_QF_TIMEEVT_POST); QS_FILTER_OFF(QS_QF_CRIT_ENTRY); QS_FILTER_OFF(QS_QF_CRIT_EXIT); QS_FILTER_OFF(QS_QF_ISR_ENTRY); QS_FILTER_OFF(QS_QF_ISR_EXIT); return true; // return success } //............................................................................ void QS::onCleanup(void) { } //............................................................................ QSTimeCtr QS::onGetTime(void) { // invoked with interrupts locked if ((SysTick->CTRL & 0x00000100U) == 0U) { // COUNTFLAG no set? return DPP::l_tickTime - (QSTimeCtr)SysTick->VAL; } else { // the rollover occured, but the SysTick_ISR did not run yet return DPP::l_tickTime + DPP::l_tickPeriod - (QSTimeCtr)SysTick->VAL; } } //............................................................................ void QS::onFlush(void) { uint16_t b; QF_INT_DISABLE(); while ((b = QS::getByte()) != QS_EOD) { while (!DPP::l_qspy.writeable()) { // wait until serial is writable } DPP::l_qspy.putc((uint8_t)b); } QF_INT_ENABLE(); } #endif // Q_SPY //---------------------------------------------------------------------------- } // namespace QP