请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。
器件型号：MSPM0C1104工具/软件：
我正在尝试为 MSPM0C1104 MCU 编写固件代码。
看门狗计时器 (WDT) 功能是我代码的基本要求。
MSPM0_SDK 提供了“wwdt_window_mode_periodic_reset"示“示例代码。
我稍微重写了这个示例代码、如附件中所示。
我稍微重写了这个示例代码、如附件中所示。
我注意到主循环仅在第一个 IRQ 例程之前执行。
因此、程序仅执行 IRQ 例程、绝不会返回到主循环。
是否有专家可以提供一些建议？
非常感谢。
wwdt_window_mode_periodic_reset.c
/**
* These arguments were used when this file was generated. They will be automatically applied on subsequent loads
* via the GUI or CLI. Run CLI with '--help' for additional information on how to override these arguments.
* @cliArgs --device "MSPM0C110X" --part "Default" --package "VSSOP-20(DGS20)" --product "mspm0_sdk@2.04.00.06"
* @v2CliArgs --device "MSPM0C1104" --package "VSSOP-20(DGS20)" --product "mspm0_sdk@2.04.00.06"
* @versions {"tool":"1.22.0+3893"}
*/
/**
* Import the modules used in this configuration.
*/
const Board = scripting.addModule("/ti/driverlib/Board");
const GPIO = scripting.addModule("/ti/driverlib/GPIO", {}, false);
const GPIO1 = GPIO.addInstance();
const SYSCTL = scripting.addModule("/ti/driverlib/SYSCTL");
const TIMER = scripting.addModule("/ti/driverlib/TIMER", {}, false);
const TIMER1 = TIMER.addInstance();
const WWDT = scripting.addModule("/ti/driverlib/WWDT", {}, false);
const WWDT1 = WWDT.addInstance();
/**
* Write custom configuration values to the imported modules.
*/
Board.configureUnused = true;
Board.peripheral.$assign = "DEBUGSS";
Board.peripheral.swclkPin.$assign = "PA20";
Board.peripheral.swdioPin.$assign = "PA19";
GPIO1.$name = "GPIO_LEDS";
GPIO1.associatedPins.create(2);
GPIO1.associatedPins[0].$name = "USER_LED_1";
GPIO1.associatedPins[0].initialValue = "SET";
GPIO1.associatedPins[0].assignedPin = "22";
GPIO1.associatedPins[1].$name = "USER_TEST";
GPIO1.associatedPins[1].assignedPin = "2";
GPIO1.associatedPins[1].initialValue = "SET";
SYSCTL.validateClkStatus = true;
SYSCTL.powerPolicy = "STANDBY0";
SYSCTL.MFCLKEn = true;
TIMER1.$name = "TIMER_0";
TIMER1.timerMode = "PERIODIC";
TIMER1.interrupts = ["ZERO"];
TIMER1.timerClkSrc = "LFCLK";
TIMER1.timerPeriod = "300 ms";
TIMER1.timerClkPrescale = 33;
TIMER1.peripheral.$assign = "TIMG14";
WWDT1.$name = "WWDT0";
WWDT1.sleepMode = true;
WWDT1.window0ClosedPeriod = "25";
WWDT1.peripheral.$assign = "WWDT0";
/**
* Pinmux solution for unlocked pins/peripherals. This ensures that minor changes to the automatic solver in a future
* version of the tool will not impact the pinmux you originally saw. These lines can be completely deleted in order to
* re-solve from scratch.
*/
GPIO1.associatedPins[0].pin.$suggestSolution = "PA22";
GPIO1.associatedPins[1].pin.$suggestSolution = "PA2";
SYSCTL.peripheral.$suggestSolution = "SYSCTL";
wwdt_window_mode_periodic_reset.scfg
/*
* Copyright (c) 2023, 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.
*/
#include "ti_msp_dl_config.h"
int main(void)
{
SYSCFG_DL_init();
/* Enable TimerG interrupts on device */
NVIC_EnableIRQ(TIMER_0_INST_INT_IRQN);
/* Enable sleep on exit */
DL_SYSCTL_enableSleepOnExit();
/* Set LED to indicate Timer counter enable */
DL_GPIO_clearPins(
GPIO_LEDS_PORT, GPIO_LEDS_USER_LED_1_PIN | GPIO_LEDS_USER_TEST_PIN);
/*
* Configures timer to be halted if CPU is halted. This ensures
* that timer is always aligned with the WWDT so it is never serviced
* too late or too early.
*/
DL_Timer_setCoreHaltBehavior(TIMER_0_INST, DL_TIMER_CORE_HALT_IMMEDIATE);
/* Start TimerG counter */
DL_TimerG_startCounter(TIMER_0_INST);
while (1) {
//__WFI();
DL_GPIO_setPins(GPIO_LEDS_PORT, GPIO_LEDS_USER_TEST_PIN);
delay_cycles(1000);
DL_GPIO_clearPins(GPIO_LEDS_PORT, GPIO_LEDS_USER_TEST_PIN);
delay_cycles(1000);
//DL_WWDT_restart(WWDT0_INST);
}
}
void TIMER_0_INST_IRQHandler(void)
{
switch (DL_TimerG_getPendingInterrupt(TIMER_0_INST)) {
case DL_TIMER_IIDX_ZERO:
/* Restart WWDT timer */
DL_WWDT_restart(WWDT0_INST);
/* Toggle LED to indicate WWDT reset */
DL_GPIO_togglePins(GPIO_LEDS_PORT, GPIO_LEDS_USER_LED_1_PIN);
break;
default:
break;
}
}
