int rpm = 850;
float Freq_ind = 0;							// Fréquence des impulsions de la sortie induction
void epwm8_init(void);



// Initialisation de l'ePWM8
void epwm_init(void)
{
	DINT;

	// Configuration de la pin GPIO 42 pour la sortie Induction Essnce/Diesel
	EALLOW;
    GpioCtrlRegs.GPBPUD.bit.GPIO42 = 1;    // Disable pull-up on GPIO42 (EPWM8A)
    GpioCtrlRegs.GPBMUX1.bit.GPIO42 = 1;   // Configure GPIO42 as EPWM8A
    EDIS;

    // Configuration des paramètres de l'ePWM8
    EALLOW;
    SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 0;
    EDIS;

    epwm8_init();

    EALLOW;
    SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 1;
    EDIS;

    // Enable global Interrupts and higher priority real-time debug events:
    EINT;   // Enable Global interrupt INTM
    ERTM;   // Enable Global realtime interrupt DBGM
}


// Configuration de l'ePWM8 pour la sortie induction diesel/essence
void epwm8_init(void)
{
	EALLOW;

	// Setup TBCLK
	EPwm8Regs.TBCTL.bit.CTRMODE = 0x00;			// Count up
	EPwm8Regs.TBCTL.bit.PHSEN = 0x0;   			// Disable phase loading
	EPwm8Regs.TBPHS.half.TBPHS = 0x0000;   		// Phase is 0
	EPwm8Regs.TBCTR = 0x000;               		// Clear counter
	EPwm8Regs.TBCTL.bit.HSPCLKDIV = 0x100;   	// Clock ratio to SYSCLKOUT = /8
	EPwm8Regs.TBCTL.bit.CLKDIV = 0x110;			// Clock ratio to SYSCLKOUT = /64 --> TBCLK = SYSCLKOUT/512

	// Set Compare values
	EPwm8Regs.CMPA.half.CMPA = 156;			    // Set compare A value : 156 = TBCLK/1000 = Nb de coup de clock pour 1ms

	// Set actions
	EPwm8Regs.AQCTLA.bit.ZRO = 0x10;			// Set PWM1A on Zero event
	EPwm8Regs.AQCTLA.bit.CAU = 0x01;          	// Clear PWM1A on event A, up count (ie when counter equals CMPA value)

	// Shadow mode for the period
	EPwm8Regs.TBCTL.bit.PRDLD = 0;

	// Set period (TBPRD = T_désirée/T_base = (120/rpm)/(1/TBLCK))
	EPwm8Regs.TBPRD = (18750000/rpm);

	// Fréquence des impulsions = 1/T_désirée = rpm/120
	Freq_ind = ((float)rpm/120);

	EDIS;
}