TI中文支持网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。
Susan Yang：
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 16MHzmsp430fr211x_lpm3_5_01.c LPM3.5, device enter LPM3.5 and toggles P1.0 with RTC interrupt handling every 1smsp430fr211x_lpm4_5_01.c LPM4.5, Device enters LPM4.5 waiting for a port interrupt on P1.3msp430fr211x_lpm4_5_02.c LPM4.5, Device enters LPM4.5 waiting for a port interrupt on P1.3 with SVS disabled
Wade ZED：
回复 Susan Yang:
Hi Susan，
你们有写过吗？用汇编写的。
Susan Yang：
回复 Wade ZED:
很抱歉，暂时没有
Susan Yang：
回复 Wade ZED:
/* --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 //------------------ ///|\|| //| || //--|RSTP1.1/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 GPIOP1OUT &= ~BIT0;// Clear P1.0 output latch for a defined power-on stateP1DIR |= BIT0;// Set P1.0 to output direction// Configure Comparator input & outputP1SEL0 |= BIT1;// Select eCOMP input function on P1.1/C1P1SEL1 |= BIT1;P2DIR |= BIT0;P2SEL1 |= BIT0;// Select CPOUT function on P2.0/COUTPM5CTL0 &= ~LOCKLPM5;// Disable the GPIO power-on default high-impedance mode// to activate previously configured port settings// Configure referencePMMCTL0_H = PMMPW_H;// Unlock the PMM registersPMMCTL2 |= INTREFEN;// Enable internal referencewhile(!(PMMCTL2 & REFGENRDY));// Poll till internal reference settles// Setup eCOMPCPCTL0 = CPPSEL0;// Select C1 as input for V+ terminalCPCTL0 |= CPNSEL1 | CPNSEL2;// Select DAC as input for V- terminalCPCTL0 |= CPPEN | CPNEN;// Enable eCOMP inputCPCTL1 |= CPIIE | CPIE;// Enable eCOMP dual edge interruptCPDACCTL |= CPDACREFS | CPDACEN;// Select on-chip VREF and enable DACCPDACDATA |= 0x002B;// CPDACBUF1=On-chip VREF*43/64 = 1VCPCTL1 |= 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;} }
灰小子：
回复 Wade ZED:
现在很少有人用汇编了吧。推荐用c啊，更方便快捷。
楼主是什么样的应用？不防说出来大家给你推荐更合适的方案
Wade ZED：
回复 Susan Yang:
谢谢你，因为FR2111的程序空间有限，和MCU要求的反应时间较短，用汇编写是最快的。麻烦帮忙看看有没有相关的汇编程序。
Susan Yang：
回复 Wade ZED:
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 ;------------------ ;/|\|| ;| || ;--|RSTP1.1/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> ;-------------------------------------------------------------------------------RSEGCSTACK; Define stack segment ;-------------------------------------------------------------------------------RSEGCODE ;------------------------------------------------------------------------------- RESETmov.w#SFE(CSTACK),SP; Initialize stack pointer StopWDTmov.w#WDTPW+WDTHOLD,&WDTCTL; Stop WDT SetPinbis.b#BIT1,&P1SEL0; Select eCOMP input function on P1.1/C1bis.b#BIT1,&P1SEL1bis.b#BIT0,&P2DIRbis.b#BIT0,&P2SEL1; Select CPOUT function on P2.0/COUTbic.w#LOCKLPM5,&PM5CTL0; Unlock I/O pinsSetREFmov.b#PMMPW_H,&PMMCTL0_H; Unlock the PMM registersbis.w#INTREFEN,&PMMCTL2; Enable internal reference PollREFbit.w#REFGENRDY,&PMMCTL2; Poll till internal reference settlesjzPollREFSetCOMPmov.w#CPPSEL0+CPNSEL1+CPNSEL2+CPPEN+CPNEN,&CPCTL0; Select C1 as input for V+ terminal; Select DAC as input for V- terminal; Enable eCOMP inputbis.w#CPDACREFS+CPDACEN,&CPDACCTL; Select on-chip VREF and enable DACbis.w#0x3f,&CPDACDATA; CPDACBUF1=On-chip VREF *63/64bis.w#CPEN+CPMSEL,&CPCTL1; Turn on eCOMP, in low power modenopbis.w#LPM3,SR; Enter LPM3nop ;-------------------------------------------------------------------------------COMMONINTVEC; Interrupt Vectors ;-------------------------------------------------------------------------------ORGRESET_VECTOR; Reset VectorDWRESETEND; –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 pinsSetREF 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 PollREFSetCOMP 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
Wade ZED：
回复 Susan Yang:
我这样写的，仿真不对，是否存在问题？
;——————————————————————————————————————————————————-
; 比较器引脚配置bis.b #BIT1, &P1SEL0; 选择P1.1为模拟比较器输入口bis.b #BIT1, &P1SEL1bis.b #BIT0, &P2DIRbis.b #BIT0, &P2SEL1; 选择P2.0为模拟比较器输出口; 睡眠
SetREFmov.b#PMMPW_H,&PMMCTL0_H; Unlock the PMM registersbis.w#INTREFEN,&PMMCTL2; Enable internal reference
PollREFbit.w#REFGENRDY,&PMMCTL2; Poll till internal reference settlesjzPollREF
mov.w#CPPSEL0+CPNSEL1+CPNSEL2+CPPEN+CPNEN, &CPCTL0; Select C1 as input for V+ terminal; Select DAC as input for V- terminal; Enable eCOMP inputbis.w #CPIIE + CPIE, &CPCTL1bis.w #CPDACREFS + CPDACEN, &CPDACCTLbis.w #0x2b, &CPDACDATAbis.w #CPEN, &CPCTL1
sleepclr.w &CPINTnopbis.w #LPM3 + GIE, SR nopjmp sleep
ecomp_interrupt_service_function ;比较中断函数
;============================================add.w &CPIV, PCretijmp wf1_interrupt_pendingjmp wf2_interrupt_pending
wf1_interrupt_pendingbis.b #BIT2, &P1DIRbic.b #BIT0, &P2DIR; 比较器输出关闭bic.b #BIT2, &P1DIRbis.w #CPIE, &CPCTL1; 关闭比较中断bic.w #LPM3 + GIE, 0(SP); 修改栈区(唤醒)retiwf2_interrupt_pendingbis.b #BIT2, &P1DIRbic.b #BIT0, &P2DIR; 比较器输出关闭bic.b #BIT2, &P1DIRbis.w #CPIE, &CPCTL1; 关闭比较中断bic.w #LPM3 + GIE, 0(SP); 修改栈区(唤醒)reti
;——————————————————————————-COMMONINTVEC; Interrupt Vectors
;——————————————————————————-ORGRESET_VECTOR; POR, ext. ResetDW RESETORGPORT1_VECTOR; 外部中断DW port1_interrupt_service_functionORGECOMP0_VECTOR; 比较器中断DW ecomp_interrupt_service_function
Susan Yang：
回复 Wade ZED:
很抱歉，我很少用汇编，所以也不太确认您的问题。
或许您可以去 e2e.ti.com/…/ 发帖询问
Wade ZED：
回复 Susan Yang:
好的，谢谢你
