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MSP432系列单片机 是否有 软复位指令 方便系统 主动复位用
gaoyang9992006：
/* --COPYRIGHT--,BSD_EX* Copyright (c) 2013, 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.**********************************************************************************MSP432 CODE EXAMPLE DISCLAIMER** MSP432 code examples are self-contained low-level programs that typically* demonstrate a single peripheral function or device feature in a highly* concise manner. For this the code may rely on the device's power-on default* register values and settings such as the clock configuration and care must* be taken when combining code from several examples to avoid potential side* effects. Also see www.ti.com/.../mspdriverlib for an API functional* library & https://dev.ti.com/pinmux/ for a GUI approach to peripheral configuration.** --/COPYRIGHT--*/
//******************************************************************************
//MSP432P401 Demo - Hard reset
//
//Description: This code examples exercises the hard reset feature by
//triggering the hard reset with/out an assigned source number [0-15], and
//after reset the code checks for the source of the reset. The example cycles
//through hard reset w/o source and all hard reset sources, 0 to 15, and
//completes when all hard reset sources have been triggered and confirmed
//after subsequent resets.
//
//Breakpoints can be set in each case statement to check when the associated
//hard reset was triggered/confirmed.
//
//When you reach the very end of the code example, the device should have
//gone through 17 hard resets.
//
//See msp432p401_reset_01 example for soft reset.
//
//MSP432P401x
//-----------------
///|\||
//| ||
//--|RST|
//||
//|P1.0|-->LED
//
//Dung Dang
//Texas Instruments Inc.
//October 2015 (updated) | November 2013 (created)
//Built with Code Composer Studio V6.0
//******************************************************************************
#include "msp.h"
#include "stdint.h"uint8_t* stateMachine = (uint8_t*)0x20005000;int main(void) {volatile uint32_t i;WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD;// Stop WDTP1->DIR |= BIT0;// P1.0 set as outputP1->OUT &= ~BIT0;// Turn off P1.0 LED/* Code test through hard resets with- No source- Source 0 -> 15in that order.After reset, check for source of reset to move on to next testAfter RSTCTL_HARDRESETSTAT_SRC15, all tests should pass*/if (*stateMachine == 0x00){/* stateMachine is the RAM variable that does not get re-initialized* after hard reset. */*stateMachine = 1;/* Issue hard reset without specified source */RSTCTL->RESET_REQ |= (0x6900 | RSTCTL_RESET_REQ_HARD_REQ);}/* Set breakpoints in the different case statements to check the source of* previous hard interrupt. Each breakpoint should only be hit once even* after resets.** Remove all breakpoints to let the device run through all hard reset* iterations to the end of the code.*/if (*stateMachine == 1){switch (RSTCTL->HARDRESET_STAT)// Get the source of the hard reset{case 0:// hard reset with no source indicated/* Issue hard reset with source = 0 */RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC0;while(1);case RSTCTL_HARDRESET_STAT_SRC0:// hard reset with source #0/* Clear hard reset source by writing to reset clear register */RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC0;/* Issue hard reset with the next source */RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC1;while(1);case RSTCTL_HARDRESET_STAT_SRC1:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC1;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC2;while(1);case RSTCTL_HARDRESET_STAT_SRC2:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC2;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC3;while(1);case RSTCTL_HARDRESET_STAT_SRC3:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC3;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC4;while(1);case RSTCTL_HARDRESET_STAT_SRC4:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC4;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC5;while(1);case RSTCTL_HARDRESET_STAT_SRC5:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC5;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC6;while(1);case RSTCTL_HARDRESET_STAT_SRC6:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC6;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC7;while(1);case RSTCTL_HARDRESET_STAT_SRC7:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC7;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC8;while(1);case RSTCTL_HARDRESET_STAT_SRC8:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC8;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC9;while(1);case RSTCTL_HARDRESET_STAT_SRC9:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC9;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC10;while(1);case RSTCTL_HARDRESET_STAT_SRC10:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC10;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC11;while(1);case RSTCTL_HARDRESET_STAT_SRC11:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC11;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC12;while(1);case RSTCTL_HARDRESET_STAT_SRC12:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC12;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC13;while(1);case RSTCTL_HARDRESET_STAT_SRC13:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC13;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC14;while(1);case RSTCTL_HARDRESET_STAT_SRC14:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC14;RSTCTL->HARDRESET_SET |= RSTCTL_HARDRESET_SET_SRC15;while(1);case RSTCTL_HARDRESET_STAT_SRC15:RSTCTL->HARDRESET_CLR |= RSTCTL_HARDRESET_STAT_SRC15;/* All hard reset sources have been exercised. Update stateMachine* and conclude the example*/*stateMachine = 2;break;default:while(1);}}/* *stateMachine == 2 means we've gone through all hard reset sources */if (*stateMachine == 2){P1->OUT |= BIT0;// Turn on LED indicating success/* Reset the RAM variable *stateMachine to 0, in case you'd like to go* through the whole experience again by reseting the device */*stateMachine = 0;}else{while (1){P1->OUT ^= BIT0;// Blink LED to indicate erroneous reset/execution in the codefor (i=0;i<20000;i++);}}
}
yuyinfeng1982：
回复 gaoyang9992006:
谢谢 gaoyang9992006
Susan Yang：
您可以使用SysCtl_rebootDevice来启动软复位
dev.ti.com/…/group__sysctl__api.html
Susan Yang：
回复 yuyinfeng1982:
很高兴对您有所帮助！
