[参考译文] MSP430FR2355：CCS 没有 TIMER_B2_BASE 的宏值

https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1226292/msp430fr2355-ccs-has-no-macro-value-for-timer_b2_base

我有两个计时器工作正常。 初始化 B1计时器的代码为：

/* Configure TimerB1 to generate 100 Hz Clock */
void jiffyClockInitTimerB1(void){
    Timer_B_initUpModeParam param = {0};
    param.clockSource = TIMER_B_CLOCKSOURCE_SMCLK;
    param.clockSourceDivider = TIMER_B_CLOCKSOURCE_DIVIDER_48;       // 16uS / 62.5 KHz
    param.timerPeriod = 624;             //625 ticks = 10 mS / 100 Hz
    param.timerInterruptEnable_TBIE = TIMER_B_TBIE_INTERRUPT_ENABLE;
    param.captureCompareInterruptEnable_CCR0_CCIE = TIMER_B_CCIE_CCR0_INTERRUPT_ENABLE;
    param.startTimer = true;
    Timer_B_initUpMode(TIMER_B1_BASE, &param);
    HWREG16(TIMER_B1_BASE + OFS_TBxCTL) &= ~(TBIE);     // Turn off overflow (goes to zero) IRQ
}

这种编译和工作正常。 现在我要使用 B2计时器、让此代码使其运行：

void sineWaveInitTimerB2(void){
    Timer_B_initUpModeParam param = {0};
    param.clockSource = TIMER_B_CLOCKSOURCE_SMCLK;
    param.clockSourceDivider = TIMER_B_CLOCKSOURCE_DIVIDER_12;       // SMCLK at 3 MHz  4uS / 250.5 KHz
    param.timerPeriod = 71;             // 284uS --> 3.52 KHz  / 8  =440 Hz
    param.timerInterruptEnable_TBIE = TIMER_B_TBIE_INTERRUPT_ENABLE;
    param.captureCompareInterruptEnable_CCR0_CCIE = TIMER_B_CCIE_CCR0_INTERRUPT_ENABLE;
    param.startTimer = true;
    Timer_B_initUpMode(TIMER_B2_BASE, &param);
    HWREG16(TIMER_B2_BASE + OFS_TBxCTL) &= ~(TBIE);     // Turn off overflow (goes to zero) IRQ
}

 当我尝试编译这个代码时、我收到一个未定义 TIMER_B2_BASE 的错误。

我在顶部添加了这个宏、源文件：

#define TIMER_B2_BASE (*(volatile uint16_t *)((uint16_t) 0x0400 +(0x0000)))

现在编译、但是看不到计时器运行(我看不到 IRQ)。

有什么想法为什么有有效的宏用于 timer_B0_BASE 和 timer_B1_base 而不是  timer_B2_base ?

FWiw、这个中断处理程序是一个用于定时器1的中断处理程序副本。 它看起来像：

#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=TIMER2_B0_VECTOR
__interrupt
#elif defined(__GNUC__)
__attribute__((interrupt(TIMER2_B0_VECTOR)))
#endif
void TIMER0_B2_ISR(void){
    // to DEBUG, pulse the P2.2 bit so we can see when we take timer interrupts and see how long it takes
 GPIO_setOutputHighOnPin(GPIO_PORT_P2, GPIO_PIN3);

    // Important safety tip: the CCIFG interrupt flag is automatically reset when the TBxCCR0 IRQ is serviced
 //    Timer_B_clearTimerInterrupt(TIMER_B0_BASE);
     HWREG16(TIMER_B2_BASE + OFS_TBxCCTL0) &= ~(CCIFG | COV);        // COV is a safety
     HWREG16(TIMER_B2_BASE + OFS_TBxCTL) &= ~TBIFG;        // "counter went to zero" interrupt flag, saf

 GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN3);        // exit timer irq DEBUG
}

请注意、使用编译没有问题

#pragma vector=TIMER2_B0_vector

语句。