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https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1525328/msp430f5529-entering-and-exiting-the-lpm4-5
工具/软件：
您好： 我正在尝试将 LaunchPad MSP-EXP430F5529LP 导入 LPM4.5。 我编写了以下代码。
‘代码并执行"Enter LPM4.5！"后 显示在控制台中。 我尝试通过按钮中断来唤醒器件、但没有响应。 控制台的输出和 LED 切换都不是。
void main (void) ｛
WDTCTL = WDTPW | WDTHOLD; P1OUT = 0x00;P2OUT = 0x00;P3OUT = 0x00;P4OUT = 0x00;P5OUT = 0x00;P6OUT = 0x00;P7OUT = 0x00;PJOUT = 0x00; P1DIR = 0xFE;P2DIR = 0xFF;P3DIR = 0xFF;P4DIR = 0xFF;P5DIR = 0xFF;P6DIR = 0xFF;P7DIR = 0xFF;PJDIR = 0xFF; // Set Button to Interrupt GPIO_setAsInputPinWithPullUpResistor(GPIO_PORT_P1, GPIO_PIN1); GPIO_enableInterrupt(GPIO_PORT_P1, GPIO_PIN1); GPIO_selectInterruptEdge(GPIO_PORT_P1, GPIO_PIN1, GPIO_HIGH_TO_LOW_TRANSITION); GPIO_setAsOutputPin(DEBUG_LED_PORT, DEBUG_LED_PIN); GPIO_toggleOutputOnPin(DEBUG_LED_PORT, DEBUG_LED_PIN); delay_ms(1000); __enable_interrupt(); // Main Loop while(1) { printf("Enter LPM4.5!\n"); UCSCTL6 |= XT1OFF | XT2OFF; //turn off oscillators PMMCTL0_H = PMMPW_H; PMMIFG &= ~PMMLPM5IFG; SVSMHCTL &= ~(SVMHE+SVSHE); // Disable High side SVS SVSMLCTL &= ~(SVMLE+SVSLE); // Disable Low side SVS//clear flag to allow wakeup from LPM4.5 PMMCTL0_L |= PMMREGOFF_L; __bis_SR_register(LPM4_bits); printf("never gone see!\n"); }
使用.5低功耗模式之一但对 LOCKLPM5位不执行任何操作的程序将不能很好地运行。
