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// Assumes ePWM1 clock is already enabled in InitSysCtrl(); EPwm1Regs.ETSEL.bit.SOCAEN = 1; // Enable SOC on A group EPwm1Regs.ETSEL.bit.SOCASEL = 4; // 4.Select SOC from from CPMA on upcount EPwm1Regs.ETPS.bit.SOCAPRD = 1; // Generate pulse on 1st event // EPwm1Regs.CMPA.half.CMPA = 0x0080; // Set compare A value // EPwm1Regs.TBPRD = 0xFFFF; // Set period for ePWM1 // EPwm1Regs.TBCTL.bit.CTRMODE = 0; // count up and start
// *IMPORTANT* // The ADC_cal function, which copies the ADC calibration values from TI reserved // OTP into the ADCREFSEL and ADCOFFTRIM registers, occurs automatically in the // Boot ROM. If the boot ROM code is bypassed during the debug process, the // following function MUST be called for the ADC to function according // to specification. The clocks to the ADC MUST be enabled before calling this // function. // See the device data manual and/or the ADC Reference // Manual for more information.
// To powerup the ADC the ADCENCLK bit should be set first to enable // clocks, followed by powering up the bandgap, reference circuitry, and ADC core. // Before the first conversion is performed a 5ms delay must be observed // after power up to give all analog circuits time to power up and settle
// Please note that for the delay function below to operate correctly the // CPU_RATE define statement in the DSP2833x_Examples.h file must // contain the correct CPU clock period in nanoseconds.
AdcRegs.ADCTRL3.all = 0x00E0; // Power up bandgap/reference/ADC circuits/somde=0顺序 DELAY_US(ADC_usDELAY); // Delay before converting ADC channels }
