Hello,
I try to further reduce the power consumption in LPM4 in my MSP430FR5730 design.
I can't use LPM4.5, because the wake up source is Timer A0 clocked from an external ultra low power oscillator.
At the moment, I'm using the slac491i example for LPM4:
P1DIR = 0; P1OUT = 0; P1REN = 0xFF; P2DIR = 0; P2OUT = 0; P2REN = 0xFF; CSCTL0_H = 0xA5; CSCTL1 |= DCOFSEL0 + DCOFSEL1; // Set max. DCO setting CSCTL2 = SELA_1 + SELS_3 + SELM_3; // set ACLK = VLO; MCLK = DCO CSCTL3 = DIVA_0 + DIVS_1 + DIVM_1; // set all dividers CSCTL4 = XT1OFF + XT2OFF; CSCTL5 &= ~(XT1OFFG + XT2OFFG); REFCTL0 |= REFTCOFF; REFCTL0 &= ~REFON; __bis_SR_register(LPM4_bits);
Is there a clever way to save more power?
Kind regards
Gerd