请帮忙看看EXP430G2 DEMO程序在IMAGECRAFT MSP430 V7.12C不断复位
这是源程序当执行到PreApplicationMode(); 就会发生复位.查汇编代码也没有看到那里不正常.备注:这个程序代码在IAR和Crossworks的MSP430编译运行正常。就是imagecraft icc430不正常。
下面是移植icc430的代码。
/*
* main.c
*
* MSP-EXP430G2-LaunchPad User Experience Application
*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
*
*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.
*
*/
/******************************************************************************
* MSP-EXP430G2-LaunchPad User Experience Application
*
* 1. Device starts up in LPM3 + blinking LED to indicate device is alive
* + Upon first button press, device transitions to application mode
* 2. Application Mode
* + Continuously sample ADC Temp Sensor channel, compare result against
* initial value
* + Set PWM based on measured ADC offset: Red LED for positive offset, Green
* LED for negative offset
* + Transmit temperature value via TimerA UART to PC
* + Button Press --> Calibrate using current temperature
* Send character '? via UART, notifying PC
*
* Changes:
*
* 1.2+ Updated register naming conventions to reflect latest standard by TI
* e.g.: CCR0 --> TACCR0, CCTL0 --> TACCTL0
* + Changed method to capture TAR value into TACCR0 by using capture a
* SW-triggered event.
* 1.1+ LED1 & LED2 labels changed so that Green LED(LED2) indicates sampled
* temperature colder than calibrated temperature and vice versa
* with Red LED (LED1).
* + Turn off peripheral function of TXD after transmitting byte to
* eliminate the extra glitch at the end of UART transmission
* 1.0Initial Release Version
*
* Texas Instruments, Inc.
******************************************************************************/
#include"msp430g2553.h"
#define LED1 BIT0
#define LED2 BIT6
#define LED_DIR P1DIR
#define LED_OUT P1OUT
#define BUTTON BIT3
#define BUTTON_OUT P1OUT
#define BUTTON_DIR P1DIR
#define BUTTON_IN P1IN
#define BUTTON_IE P1IE
#define BUTTON_IES P1IES
#define BUTTON_IFG P1IFG
#define BUTTON_REN P1REN
#define TXD BIT1 // TXD on P1.1
#define RXD BIT2 // RXD on P1.2
#define APP_STANDBY_MODE 0
#define APP_APPLICATION_MODE1
#define TIMER_PWM_MODE 0
#define TIMER_UART_MODE 1
#define TIMER_PWM_PERIOD 2000
#define TIMER_PWM_OFFSET 20
#define TEMP_SAME 0
#define TEMP_HOT 1
#define TEMP_COLD 2
#define TEMP_THRESHOLD 5
// Conditions for 9600/4=2400 Baud SW UART, SMCLK = 1MHz
#define Bitime_5 0x05*4 // ~ 0.5 bit length + small adjustment
#define Bitime 13*4//0x0D
#define UART_UPDATE_INTERVAL1000
unsigned char BitCnt;
unsigned char applicationMode = APP_STANDBY_MODE;
unsigned char timerMode = TIMER_PWM_MODE;
unsigned char tempMode;
unsigned char calibrateUpdate = 0;
unsigned char tempPolarity = TEMP_SAME;
unsigned int TXByte;
/* Using an 8-value moving average filter on sampled ADC values */
long tempMeasured;
unsigned char tempMeasuredPosition=0;
long tempAverage;
long tempCalibrated, tempDifference;
void InitializeLeds(void);
void InitializeButton(void);
void PreApplicationMode(void); // Blinks LED, waits for button press
void ConfigureAdcTempSensor(void);
void ConfigureTimerPwm(void);
void ConfigureTimerUart(void);
void Transmit(void);
void InitializeClocks(void);
#ifdef __IMAGECRAFT__
void __delay_cycles(unsigned int x)
{
while(x != 0) x--;
}
void _MSP430Setup(void) //low level function for power on setup
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
}
#endif
void main(void)
{
unsigned int uartUpdateTimer = UART_UPDATE_INTERVAL;
unsigned char i;
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
InitializeClocks();
InitializeButton();
InitializeLeds();
PreApplicationMode(); // Blinks LEDs, waits for button press
/* Application Mode begins */
applicationMode = APP_APPLICATION_MODE;
ConfigureAdcTempSensor();
ConfigureTimerPwm();
__enable_interrupt(); // Enable interrupts.
/* Main Application Loop */
while(1)
{
ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion start
__bis_SR_register(CPUOFF + GIE); // LPM0 with interrupts enabled
/* Moving average filter out of 8 values to somewhat stabilize sampled ADC */
tempMeasured = ADC10MEM;
if (tempMeasuredPosition == 8)
tempMeasuredPosition = 0;
tempAverage = 0;
for (i = 0; i < 8; i++)
tempAverage += tempMeasured;
tempAverage >>= 3; // Divide by 8 to get average
if ((--uartUpdateTimer == 0) || calibrateUpdate )
{
ConfigureTimerUart();
if (calibrateUpdate)
{
TXByte = 248; // A character with high value, outside of temp range
Transmit();
calibrateUpdate = 0;
}
TXByte = (unsigned char)( ((tempAverage - 630) * 761) / 1024 );
Transmit();
uartUpdateTimer = UART_UPDATE_INTERVAL;
ConfigureTimerPwm();
}
tempDifference = tempAverage - tempCalibrated;
if (tempDifference < -TEMP_THRESHOLD)
{
tempDifference = -tempDifference;
tempPolarity = TEMP_COLD;
LED_OUT &= ~ LED1;
}
else if (tempDifference > TEMP_THRESHOLD)
{
tempPolarity = TEMP_HOT;
LED_OUT &= ~ LED2;
}
else
{
tempPolarity = TEMP_SAME;
TACCTL0 &= ~CCIE;
TACCTL1 &= ~CCIE;
LED_OUT &= ~(LED1 + LED2);
}
if (tempPolarity != TEMP_SAME)
{
tempDifference <<= 3;
tempDifference += TIMER_PWM_OFFSET;
TACCR1 = ( (tempDifference) < (TIMER_PWM_PERIOD-1) ? (tempDifference) : (TIMER_PWM_PERIOD-1) );
TACCTL0 |= CCIE;
TACCTL1 |= CCIE;
}
}
}
void PreApplicationMode(void)
{
LED_DIR |= LED1 + LED2;
LED_OUT |= LED1; // To enable the LED toggling effect
LED_OUT &= ~LED2;
BCSCTL1 |= DIVA_1; // ACLK/2
BCSCTL3 |= LFXT1S_2; // ACLK = VLO
TACCR0 = 1200; //
TACTL = TASSEL_1 | MC_1; // TACLK = SMCLK, Up mode.
TACCTL1 = CCIE + OUTMOD_3; // TACCTL1 Capture Compare
TACCR1 = 600;
__bis_SR_register(LPM3_bits + GIE); // LPM0 with interrupts enabled
}
void ConfigureAdcTempSensor(void)
{
unsigned char i;
/* Configure ADC Temp Sensor Channel */
ADC10CTL1 = INCH_10 + ADC10DIV_3; // Temp Sensor ADC10CLK/4
ADC10CTL0 = SREF_1 + ADC10SHT_3 + REFON + ADC10ON + ADC10IE;
#ifdef __IMAGECRAFT__
__delay_cycles(1000/3-3); // Wait for ADC Ref to settle
#else
__delay_cycles(1000); // Wait for ADC Ref to settle
#endif
ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion start
__bis_SR_register(CPUOFF + GIE); // LPM0 with interrupts enabled
tempCalibrated = ADC10MEM;
for (i=0; i < 8; i++)
tempMeasured = tempCalibrated;
tempAverage = tempCalibrated;
}
void ConfigureTimerPwm(void)
{
timerMode = TIMER_PWM_MODE;
TACCR0 = TIMER_PWM_PERIOD; //
TACTL = TASSEL_2 | MC_1; // TACLK = SMCLK, Up mode.
TACCTL0 = CCIE;
TACCTL1 = CCIE + OUTMOD_3; // TACCTL1 Capture Compare
TACCR1 = 1;
}
void ConfigureTimerUart(void)
{
timerMode = TIMER_UART_MODE; // Configure TimerA0 UART TX
TACCTL0 = OUT; // TXD Idle as Mark
TACTL = TASSEL_2 + MC_2 + ID_3; // SMCLK/8, continuous mode
P1SEL |= TXD + RXD; //
P1DIR |= TXD; //
}
// Function Transmits Character from TXByte
void Transmit(void)
{
BitCnt = 0xA; // Load Bit counter, 8data + ST/SP
/* Simulate a timer capture event to obtain the value of TAR into the TACCR0 register */
TACCTL0 = CM_1 + CCIS_2+ SCS + CAP + OUTMOD0; //capture on rising edge, initially set to GND as input // clear CCIFG flag
TACCTL0 |= CCIS_3; //change input to Vcc, effectively rising the edge, triggering the capture action
while (!(TACCTL0 & CCIFG)); //allowing for the capturing//updating TACCR0.
TACCR0 += Bitime ; // Some time till first bit
TXByte |= 0x100; // Add mark stop bit to TXByte
TXByte = TXByte << 1; // Add space start bit
TACCTL0 =CCIS0 + OUTMOD0 + CCIE; // TXD = mark = idle
while ( TACCTL0 & CCIE ); // Wait for TX completion
}
// Timer A0 interrupt service routine
#ifdef __IMAGECRAFT__
#pragma interrupt_handler Timer_A:TIMER1_A0_VECTOR
void Timer_A (void)
#else
#pragma vector=TIMER0_A0_VECTOR
__interrupt void Timer_A (void)
#endif
{
if (timerMode == TIMER_UART_MODE)
{
TACCR0 += Bitime; // Add Offset to TACCR0
if (TACCTL0 & CCIS0) // TX on CCI0B?
{
if ( BitCnt == 0)
{
P1SEL &= ~(TXD+RXD);
TACCTL0 &= ~ CCIE ; // All bits TXed, disable interrupt
}
else
{
TACCTL0 |=OUTMOD2; // TX Space
if (TXByte & 0x01)
TACCTL0 &= ~ OUTMOD2; // TX Mark
TXByte = TXByte >> 1;
BitCnt --;
}
}
}
else
{
if (tempPolarity == TEMP_HOT)
LED_OUT |= LED1;
if (tempPolarity == TEMP_COLD)
LED_OUT |= LED2;
TACCTL0 &= ~CCIFG;
}
}
#ifdef __IMAGECRAFT__
#pragma interrupt_handler ta1_isr:TIMER1_A1_VECTOR
void ta1_isr(void)
#else
#pragma vector=TIMER0_A1_VECTOR
__interrupt void ta1_isr(void)
#endif
{
TACCTL1 &= ~CCIFG;
if (applicationMode == APP_APPLICATION_MODE)
LED_OUT &= ~(LED1 + LED2);
else
LED_OUT ^= (LED1 + LED2);
}
void InitializeClocks(void)
{
BCSCTL1 = CALBC1_1MHZ; // Set range
DCOCTL = CALDCO_1MHZ;
BCSCTL2 &= ~(DIVS_3); // SMCLK = DCO = 1MHz
}
void InitializeButton(void) // Configure Push Button
{
BUTTON_DIR &= ~BUTTON;
BUTTON_OUT |= BUTTON;
BUTTON_REN |= BUTTON;
BUTTON_IES |= BUTTON;
BUTTON_IFG &= ~BUTTON;
BUTTON_IE |= BUTTON;
}
void InitializeLeds(void)
{
LED_DIR |= LED1 + LED2;
LED_OUT &= ~(LED1 + LED2);
}
/* *************************************************************
* Port Interrupt for Button Press
* 1. During standby mode: to exit and enter application mode
* 2. During application mode: to recalibrate temp sensor
* *********************************************************** */
#ifdef __IMAGECRAFT__
#pragma interrupt_handler PORT1_ISR:PORT1_VECTOR
void PORT1_ISR(void)
#else
#pragma vector=PORT1_VECTOR
__interrupt void PORT1_ISR(void)
#endif
{
BUTTON_IFG = 0;
BUTTON_IE &= ~BUTTON; /* Debounce */
WDTCTL = WDT_ADLY_250;
IFG1 &= ~WDTIFG; /* clear interrupt flag */
IE1 |= WDTIE;
if (applicationMode == APP_APPLICATION_MODE)
{
tempCalibrated = tempAverage;
calibrateUpdate= 1;
}
else
{
applicationMode = APP_APPLICATION_MODE; // Switch from STANDBY to APPLICATION MODE
__bic_SR_register_on_exit(LPM3_bits);
}
}
// WDT Interrupt Service Routine used to de-bounce button press
#ifdef __IMAGECRAFT__
#pragma interrupt_handler WDT_ISR:WDT_VECTOR
void WDT_ISR(void)
#else
#pragma vector=WDT_VECTOR
__interrupt void WDT_ISR(void)
#endif
{
IE1 &= ~WDTIE; /* disable interrupt */
IFG1 &= ~WDTIFG; /* clear interrupt flag */
WDTCTL = WDTPW + WDTHOLD; /* put WDT back in hold state */
BUTTON_IE |= BUTTON; /* Debouncing complete */
}
// ADC10 interrupt service routine
#ifdef __IMAGECRAFT__
#pragma interrupt_handler ADC10_ISR:ADC10_VECTOR
void ADC10_ISR (void)
#else
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR (void)
#endif
{
__bic_SR_register_on_exit(CPUOFF); // Return to active mode
}
今天看了一下发现中断地址错了，下面是正确的中断地址。
#pragma interrupt_handler Timer_A:TIMER0_A0_VECTOR
#pragma interrupt_handler Timer_A:TIMER0_A1_VECTOR
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