请问TI工程师：
我发现一个问题，如果程序如下写
void main(void){ 初始化设置中断 while（1）{ 主循环程序 } }
好像主循环程序不能运行
必须是如下框架才行
void main(void){ 初始化设置中断 //进入休眠 while (1) { MAP_PCM_gotoLPM0();
中断唤醒后的程序
}}
设计的程序在各类中断中，然后通过中断唤醒在while（1）中执行。
我想问的是 MSP432能进行全速运行模式吗？ 即主循环也有前台程序总是运行方式。
您现在是想MSP432一直在Active模式？那您可以看一下下面的代码
/* --COPYRIGHT--,BSD * Copyright (c) 2017, Texas Instruments Incorporated * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Texas Instruments Incorporated nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * --/COPYRIGHT--*/ /******************************************************************************* * MSP432 PCM - Active mode ~1mA current consumption with LDO & DCO. * * Description: In this very simple example, the device is configured to operate * at 4MHz with the LDO on. The example shows 1mA current consumption * while using the DCO for MCLK in active mode. * * MSP432P4111 * ------------------ * /|\| | * | | | * --|RST | * | | * | | * | | * | | * ******************************************************************************/ /* DriverLib Includes */ #include <ti/devices/msp432p4xx/driverlib/driverlib.h> /* Standard Includes */ #include <stdint.h> #include <stdbool.h> volatile uint32_t mclk = 0; volatile uint32_t curPowerState; int main(void) { /* Halting the Watch-dog */ MAP_WDT_A_holdTimer(); /* Terminating all remaining pins to minimize power consumption. This is done by register accesses for simplicity and to minimize branching API calls */ MAP_GPIO_setAsOutputPin(GPIO_PORT_PA, PIN_ALL16); MAP_GPIO_setAsOutputPin(GPIO_PORT_PB, PIN_ALL16); MAP_GPIO_setAsOutputPin(GPIO_PORT_PC, PIN_ALL16); MAP_GPIO_setAsOutputPin(GPIO_PORT_PD, PIN_ALL16); MAP_GPIO_setAsOutputPin(GPIO_PORT_PE, PIN_ALL16); MAP_GPIO_setAsOutputPin(GPIO_PORT_PJ, PIN_ALL16); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PA, PIN_ALL16); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PB, PIN_ALL16); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PC, PIN_ALL16); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PD, PIN_ALL16); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PE, PIN_ALL16); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_PJ, PIN_ALL16); /* Before we set the DCO, transition the device to use LDO */ MAP_PCM_setPowerState(PCM_AM_LDO_VCORE0); /* At 4MHz in VCORE0, MSP432P401R needs 0 wait states */ MAP_FlashCtl_setWaitState(FLASH_BANK0, 0); MAP_FlashCtl_setWaitState(FLASH_BANK1, 0); /* Enabling FPU for DCO Frequency calculation */ MAP_FPU_enableModule(); /* Set DCO to 4MHz */ MAP_CS_setDCOFrequency(4000000); /* Set MCLK = DCO = 4MHz */ MAP_CS_initClockSignal(CS_MCLK, CS_DCOCLK_SELECT, CS_CLOCK_DIVIDER_1); /* Disabling high side voltage monitor/supervisor */ MAP_PSS_disableHighSide(); while (1) { mclk = MAP_CS_getDCOFrequency(); curPowerState = MAP_PCM_getPowerState(); while(1); } }
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回复 Susan Yang:
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