Dear All，
有比较器中断唤醒CPU的例程吗？我看官方是没有使用中断的。
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官方的例程是用port interrupt来唤醒的,没有比较器中断唤醒的
msp430fr211x_LPM3_01.c Enters LPM3 with ACLK = XT1CLK = 32768Hz.
msp430fr211x_LPM3_02.c LPM3 entry with MCLK 16MHz
msp430fr211x_lpm3_5_01.c LPM3.5, device enter LPM3.5 and toggles P1.0 with RTC interrupt handling every 1s
msp430fr211x_lpm4_5_01.c LPM4.5, Device enters LPM4.5 waiting for a port interrupt on P1.3
msp430fr211x_lpm4_5_02.c LPM4.5, Device enters LPM4.5 waiting for a port interrupt on P1.3 with SVS disabled
/* --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--*/
//******************************************************************************
// MSP430FR211x Demo - eCOMP output toggle, wake up from LPM3;
// Vcompare is compared against 1V.
//
// Description: Use eCOMP and internal VREF to determine if input 'Vcompare'
// is high or low. When Vcompare exceeds 1V(VREF*43/64), CPOUT goes high
// and LED is turned on. When Vcompare is less than 1V(VREF*43/64) then
// CPOUT goes low and LED is turned off. eCOMP interrupt enabled, wake up
// from LPM3.
//
// MSP430FR2111
// ------------------
// /|\| |
// | | |
// --|RST P1.1/C1|<--Vcompare
// | P2.0/COUT|--> 'high'(Vcompare>1V); 'low'(Vcompare<1V)
// | P1.0|--> LED
// | |
//
// Xiaodong Li
// Texas Instruments Inc.
// Dec. 2015
// Built with IAR Embedded Workbench v6.40 & Code Composer Studio v6.1
//******************************************************************************
#include <msp430.h>
int main(void)
{
WDTCTL = WDTPW | WDTHOLD; // Stop WDT
// Configure GPIO
P1OUT &= ~BIT0; // Clear P1.0 output latch for a defined power-on state
P1DIR |= BIT0; // Set P1.0 to output direction
// Configure Comparator input & output
P1SEL0 |= BIT1; // Select eCOMP input function on P1.1/C1
P1SEL1 |= BIT1;
P2DIR |= BIT0;
P2SEL1 |= BIT0; // Select CPOUT function on P2.0/COUT
PM5CTL0 &= ~LOCKLPM5; // Disable the GPIO power-on default high-impedance mode
// to activate previously configured port settings
// Configure reference
PMMCTL0_H = PMMPW_H; // Unlock the PMM registers
PMMCTL2 |= INTREFEN; // Enable internal reference
while(!(PMMCTL2 & REFGENRDY)); // Poll till internal reference settles
// Setup eCOMP
CPCTL0 = CPPSEL0; // Select C1 as input for V+ terminal
CPCTL0 |= CPNSEL1 | CPNSEL2; // Select DAC as input for V- terminal
CPCTL0 |= CPPEN | CPNEN; // Enable eCOMP input
CPCTL1 |= CPIIE | CPIE; // Enable eCOMP dual edge interrupt
CPDACCTL |= CPDACREFS | CPDACEN; // Select on-chip VREF and enable DAC
CPDACDATA |= 0x002B; // CPDACBUF1=On-chip VREF*43/64 = 1V
CPCTL1 |= CPEN; // Turn on eCOMP, in high speed mode
__bis_SR_register(LPM3_bits | GIE); // Enter LPM3
__no_operation(); // For debug
}
// eCOMP interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=ECOMP0_VECTOR
__interrupt void ECOMP0_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(ECOMP0_VECTOR))) ECOMP0_ISR (void)
#else
#error Compiler not supported!
#endif
{
switch(__even_in_range(CPIV, CPIV__CPIIFG))
{
case CPIV__NONE:
break;
case CPIV__CPIFG:
P1OUT |= BIT0;
break;
case CPIV__CPIIFG:
P1OUT &= ~BIT0;
break;
default:
break;
}
}
上面的那个例程是没有汇编的，只有一个IAR下的 msp430fr211x_eCOMP_01.s43
; --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--
;******************************************************************************
; MSP430FR211x Demo - eCOMP Toggle from LPM3; eCOMP in ultra low power mode,
; Vcompare is compared against internal VREF.
;
; Description: Use eCOMP and internal VREF to determine if input 'Vcompare'
; is high or low. When Vcompare exceeds 1.47V(VREF*63/64), CPOUT goes high
; and when Vcompare is less than 1.47V(VREF*63/64) then CPOUT goes low.
;
; MSP430FR2111
; ------------------
; /|\| |
; | | |
; --|RST P1.1/C1|<--Vcompare
; | |
; | P2.0/COUT|----> 'high'(Vcompare>1.47V); 'low'(Vcompare<1.47V)
; | |
;
; Xiaodong Li
; Texas Instruments Inc.
; Dec. 2015
; Built with IAR Embedded Workbench v6.40
;******************************************************************************
#include <msp430.h>
;-------------------------------------------------------------------------------
RSEG CSTACK ; Define stack segment
;-------------------------------------------------------------------------------
RSEG CODE
;-------------------------------------------------------------------------------
RESET mov.w #SFE(CSTACK),SP ; Initialize stack pointer
StopWDT mov.w #WDTPW+WDTHOLD,&WDTCTL ; Stop WDT
SetPin bis.b #BIT1,&P1SEL0 ; Select eCOMP input function on P1.1/C1
bis.b #BIT1,&P1SEL1
bis.b #BIT0,&P2DIR
bis.b #BIT0,&P2SEL1 ; Select CPOUT function on P2.0/COUT
bic.w #LOCKLPM5,&PM5CTL0 ; Unlock I/O pins
SetREF mov.b #PMMPW_H,&PMMCTL0_H ; Unlock the PMM registers
bis.w #INTREFEN,&PMMCTL2 ; Enable internal reference
PollREF bit.w #REFGENRDY,&PMMCTL2 ; Poll till internal reference settles
jz PollREF
SetCOMP mov.w #CPPSEL0+CPNSEL1+CPNSEL2+CPPEN+CPNEN,&CPCTL0
; Select C1 as input for V+ terminal
; Select DAC as input for V- terminal
; Enable eCOMP input
bis.w #CPDACREFS+CPDACEN,&CPDACCTL; Select on-chip VREF and enable DAC
bis.w #0x3f,&CPDACDATA ; CPDACBUF1=On-chip VREF *63/64
bis.w #CPEN+CPMSEL,&CPCTL1 ; Turn on eCOMP, in low power mode
nop
bis.w #LPM3,SR ; Enter LPM3
nop
;-------------------------------------------------------------------------------
COMMON INTVEC ; Interrupt Vectors
;-------------------------------------------------------------------------------
ORG RESET_VECTOR ; Reset Vector
DW RESET
END
; --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--;******************************************************************************; MSP430FR211x Demo - eCOMP Toggle from LPM3; eCOMP in ultra low power mode,; Vcompare is compared against internal VREF.;; Description: Use eCOMP and internal VREF to determine if input 'Vcompare'; is high or low. When Vcompare exceeds 1.47V(VREF*63/64), CPOUT goes high; and when Vcompare is less than 1.47V(VREF*63/64) then CPOUT goes low.;; MSP430FR2111; ------------------; /|\| |; | | |; --|RST P1.1/C1|<--Vcompare; | |; | P2.0/COUT|----> 'high'(Vcompare>1.47V); 'low'(Vcompare<1.47V); | |;; Xiaodong Li; Texas Instruments Inc.; Dec. 2015; Built with IAR Embedded Workbench v6.40 ;******************************************************************************#include <msp430.h>;------------------------------------------------------------------------------- RSEG CSTACK ; Define stack segment;------------------------------------------------------------------------------- RSEG CODE;-------------------------------------------------------------------------------RESET mov.w #SFE(CSTACK),SP ; Initialize stack pointerStopWDT mov.w #WDTPW+WDTHOLD,&WDTCTL ; Stop WDTSetPin bis.b #BIT1,&P1SEL0 ; Select eCOMP input function on P1.1/C1 bis.b #BIT1,&P1SEL1 bis.b #BIT0,&P2DIR bis.b #BIT0,&P2SEL1 ; Select CPOUT function on P2.0/COUT bic.w #LOCKLPM5,&PM5CTL0 ; Unlock I/O pins
SetREF mov.b #PMMPW_H,&PMMCTL0_H ; Unlock the PMM registers bis.w #INTREFEN,&PMMCTL2 ; Enable internal referencePollREF bit.w #REFGENRDY,&PMMCTL2 ; Poll till internal reference settles jz PollREF
SetCOMP mov.w #CPPSEL0+CPNSEL1+CPNSEL2+CPPEN+CPNEN,&CPCTL0 ; Select C1 as input for V+ terminal ; Select DAC as input for V- terminal ; Enable eCOMP input bis.w #CPDACREFS+CPDACEN,&CPDACCTL; Select on-chip VREF and enable DAC bis.w #0x3f,&CPDACDATA ; CPDACBUF1=On-chip VREF *63/64 bis.w #CPEN+CPMSEL,&CPCTL1 ; Turn on eCOMP, in low power mode
nop bis.w #LPM3,SR ; Enter LPM3 nop;------------------------------------------------------------------------------- COMMON INTVEC ; Interrupt Vectors;------------------------------------------------------------------------------- ORG RESET_VECTOR ; Reset Vector DW RESET END
