F28069M实时定时器例子

//###########################################################################
//
// FILE:   Example_2806xEPwmRealTimeInt.c
//
// TITLE:  ePWM Real-Time Interrupt Example
//
//! \addtogroup f2806x_example_list
//! <h1>ePWM Real-Time Interrupt (epwm_real-time_interrupts)</h1>
//!
//! This example configures the ePWM1 Timer and increments
//! a counter each time an interrupt is taken. ePWM interrupt can
//! be configured as time critical to demonstrate real-time mode
//! functionality and real-time interrupt capability.
//! ControlCard LED2 (GPIO31) is toggled in main loop
//! ControlCard LED3 (GPIO34) is toggled in ePWM1 Timer Interrupt.
//! FREE_SOFT bits and DBBIER.INT3 bit must be set to enable ePWM1
//! interrupt to be time critical and operational in real time mode
//! after halt command.
//! In this example:
//!  - ePWM1 is initialized
//!  - ePWM1 is cleared at period match and set at Compare-A match
//!  - Compare A match occurs at half period
//!  - GPIOs for LED2 and LED3 are initialized
//!  - Free_Soft bits and DBGIER are cleared
//!  - An interrupt is taken on a zero event for the ePWM1 timer
//!
//! \b Watch \b Variables \n
//! - EPwm1TimerIntCount
//! - EPwm1Regs.TBCTL.bit.FREE_SOFT
//! - EPwm1Regs.TBCTR
//! - DBGIER.INT3
//
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// $Release Date:  $
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