Simple Blinky example for QP-nano, which demonstrates: - Active object (Blinky) with state machine - Board Support Package abstraction for portability - BSP implementation for desktop OS (Windows, Linux, Mac) - Platform-independent main() function - make.bat batch file for Windows /* arm the private time event for tick rate 0 * to expire in 1/2s and periodically every 1/2 second */ QActive_armX(&me->super, 0U, BSP_TICKS_PER_SEC/2U, BSP_TICKS_PER_SEC/2U); BSP_ledOff(); BSP_ledOn(); The Blinky "constructor" is provided outside of the Blinky class, so that it can be used independently from the class. This is part of the "opaque pointer" design idiom. Blinky * const me = &AO_Blinky; QActive_ctor(&me->super, Q_STATE_CAST(&Blinky_initial)); #include "qpn.h" /* QP-nano framework API */ #include <stdio.h> #include <stdlib.h> /* for exit() */ enum { BSP_TICKS_PER_SEC = 100 }; void BSP_init(void) { printf("Simple Blinky example\n" "QP-nano version: %s\n" "Press Ctrl-C to quit...\n", QP_VERSION_STR); } void BSP_ledOff(void) { printf("LED OFF\n"); } void BSP_ledOn(void) { printf("LED ON\n"); } /* callback functions needed by the framework ------------------------------*/ void QF_onStartup(void) {} void QF_onCleanup(void) {} void QF_onClockTickISR(void) { QF_tickXISR(0U); /* QF-nano clock tick processing for rate 0 */ } void Q_onAssert(char_t const Q_ROM * const module, int_t loc) { fprintf(stderr, "Assertion failed in %s:%d", module, loc); exit(-1); } /* ask QM to declare the Blinky class --------------------------------------*/ $declare${AOs::Blinky_ctor} $declare${AOs::Blinky} /* the single instance of the Blinky active object -------------------------*/ Blinky AO_Blinky; /* Local-scope objects -----------------------------------------------------*/ static QEvt l_blinkyQSto[10]; /* Event queue storage for Blinky */ /* QF_active[] array defines all active object control blocks --------------*/ QActiveCB const Q_ROM QF_active[] = { { (QActive *)0, (QEvt *)0, 0U }, { (QActive *)&AO_Blinky, l_blinkyQSto, Q_DIM(l_blinkyQSto) } }; /* the main function -------------------------------------------------------*/ int main(void) { QF_init(Q_DIM(QF_active)); /* initialize the QF-nano framework */ BSP_init(); /* initialize the Board Support Package */ Blinky_ctor(); /* in C you must explicitly call the Blinky constructor */ return QF_run(); /* transfer control to QF-nano */ } /* ask QM to define the Blinky class ---------------------------------------*/ $define${AOs::Blinky_ctor} $define${AOs::Blinky} #ifndef QPN_CONF_H #define QPN_CONF_H #define Q_PARAM_SIZE 4 #define QF_MAX_TICK_RATE 1 #define QF_TIMEEVT_CTR_SIZE 2 #define QF_TIMEEVT_PERIODIC #endif /* QPN_CONF_H */