MSP430FR2433: MSP430FR2433的RTC配置万年历

RTC是不是不支持万年历的制作？如果支持，有相关例程参考吗

Susan Yang：

user6518570 说：RTC是不是不支持万年历的制作？

可以做万年历的，但是目前没有直接的例程

在之前的MSP430FR5xx/6xx 器件为其 RTC 内置了日历功能，但是FR2系列是没有内置日历功能的，您需要自己实现

,

user6518570：

2433的RTC当前是否只支持计数器模式，为何参照例程RTC无法进入中断呢，

,

Susan Yang：

user6518570 说：2433的RTC当前是否只支持计数器模式

是的，根据手册说明，目前只有计数器模式

user6518570 说：为何参照例程RTC无法进入中断呢，

能否详细说明下？哪一个例程？

,

user6518570：

msp430fr243x_RTC_01.c

,

user6518570：

msp430fr243x_RTC_01.c (ti.com)

,

Susan Yang：

您是使用开发板测试的？自己板子的话，是否有外接32768Hz晶振？

,

user6518570：

我是用自己的板子，貌似是没有外接。

,

Susan Yang：

这个例程是需要外接的

,

user6518570：

好的，谢谢，除此之外还有别的RTC例程吗，我貌似没有找到

,

Susan Yang：

就只有2个例程，都是需要外接晶振的

/* --COPYRIGHT--,BSD_EX* Copyright (c) 2014, 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.**********************************************************************************MSP430 CODE EXAMPLE DISCLAIMER** MSP430 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/grace for a GUI- and www.ti.com/msp430ware* for an API functional library-approach to peripheral configuration.** --/COPYRIGHT--*/
//******************************************************************************
//MSP430FR243x Demo - RTC, device enter LPM3.5 and toggle P1.0 in RTC
//interrupt handling every 1s
//
//
//Description: Device enter LPM3.5 after configuring the RTC. The RTC wakes
//the device up from LPM3.5 every second and toggles P1.0.
//It also stores the state of P0OUT in the Backup RAM Registers.
//
//XT1 = 32kHz, ACLK = default, MCLK = SMCLK = default, DCODIV = ~1MHz.
//
//MSP430FR2433
//-----------------
///|\||
//| ||
//| |XIN(P2.0)|--
//--|RST|~32768Hz
//|XOUT(P2.1)|--
//||
//|P1.0|-->LED
//
//Ling Zhu
//Texas Instruments Inc.
//Jan 2014
//Built with IAR Embedded Workbench v6.20 & Code Composer Studio v6.0.1
//******************************************************************************
#include <msp430.h>void initGpio(void);int main(void)
{WDTCTL = WDTPW | WDTHOLD;// Stop WDTinitGpio();// Configure GPIO// Initialize XT1 32kHz crystalP2SEL0 |= BIT0 | BIT1;// set XT1 pin as second functiondo{CSCTL7 &= ~(XT1OFFG | DCOFFG);// Clear XT1 and DCO fault flagSFRIFG1 &= ~OFIFG;} while (SFRIFG1 & OFIFG);// Test oscillator fault flag// First determine whether we are coming out of an LPMx.5 or a regular RESET.if (SYSRSTIV == SYSRSTIV_LPM5WU)// When woken up from LPM3.5, reinit{// If MCU wakes up from LPM3.5, re-init and then return to LPM3.5 again.// Restore P1OUT value from backup RAM memory, keep P1OUT after LPMx.5 resetP1OUT = *(unsigned int *)BKMEM_BASE;__enable_interrupt();// The RTC interrupt should trigger now...}else{// Device powered up from a cold start.// It configures the device and puts the device into LPM3.5// Configure backup memory*(unsigned int *)BKMEM_BASE = 0;// Initialize RTC// Interrupt and reset happen every 1024/32768 * 32 = 1 sec.RTCMOD = 32-1;RTCCTL = RTCSS__XT1CLK | RTCSR | RTCPS__1024 | RTCIE;// Store P1OUT value in backup memory register before enter LPM3.5*(unsigned int *)BKMEM_BASE = P1OUT;}// Enter LPM3.5 mode with interrupts enabled. Note that this operation does// not return. The LPM3.5 will exit through a RESET event, resulting in a// re-start of the code.PMMCTL0_H = PMMPW_H;// Open PMM Registers for writePMMCTL0_L |= PMMREGOFF;// and set PMMREGOFF__bis_SR_register(LPM3_bits | GIE);__no_operation();return 0;
}void initGpio(void)
{P1DIR = 0xFF; P2DIR = 0xFF; P3DIR = 0xFF;P1REN = 0xFF; P2REN = 0xFF; P3REN = 0xFF;P1OUT = 0x00; P2OUT = 0x00; P3OUT = 0x00;// Disable the GPIO power-on default high-impedance mode// to activate previously configured port settingsPM5CTL0 &= ~LOCKLPM5;
}#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector = RTC_VECTOR
__interrupt void RTC_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(RTC_VECTOR))) RTC_ISR (void)
#else
#error Compiler not supported!
#endif
{switch(__even_in_range(RTCIV, RTCIV_RTCIF)){case RTCIV_NONE : break;// No interrupt pendingcase RTCIV_RTCIF:// RTC Overflow// Toggle LED on P1.0P1OUT ^= BIT0;// Store P1OUT value in backup memory register*(unsigned int *)BKMEM_BASE = P1OUT;break;default:break;}
}

,

user6518570：

好的 谢谢