I am generating a PWM to turn on a fan. Here is the code
TA2CCR0 = 1000; // PWM Period
TA2CCTL1 = OUTMOD_7; // CCR1 reset/set
TA2CCR1 = 900; //384; // CCR1 PWM duty cycle
TA2CCTL2 = OUTMOD_7; // CCR2 reset/set
TA2CCR2 = 900; //128 // CCR2 PWM duty cycle
TA2CTL = TASSEL_2 + MC_1 + TACLR; // SMCLK, up mode, clear TAR
I want to be able to turn it on and off. It should restart generating the same PWM with the same duty cycle. Here is the code for turn-off.
//Are these lines needed?
//TA2CCR0 = 0; //TA2CCTL1 = 0;
//TA2CCR1 = 0;
//TA2CCTL2 = 0;
//TA2CCR2 = 0;
//TA2CTL = TASSEL_2 + MC_1 + TACLR;
TA2CTL &= ~(MC_1); //Is only this line sufficient?
Is it enough if I just toggle and set MC_1 or should I set the other registers(Capture compare registers, TACTL etc.) to 0 and re-initialise them?