MSP430I2020: can TA0,TA1 work together?

Hi,

TA0 and TA1 should work independently. 

I do not find issues in the initial code. Could you send more code about how you start the timer?

Best regards,

Cash Hao

#define TIME_1ms                 ((__SYSTEM_FREQUENCY_HZ__ / 8000) - 1)
#define PWM_1024KHz                 ((__SYSTEM_FREQUENCY_HZ__ / 8000000) - 1)
//#define TIME_1ms                 2000
#define StartTimer0()                 TA0CTL = TASSEL_2 | MC_1 | ID_3
#define StartTimer1()                 TA1CTL = TASSEL_2 | MC_1 | ID_1

#include <Timer.h>

uint8_t  _1msFlag;
uint32_t  _1msCnt;

void InitTimer(void)
{
    TA0CCTL0 = CCIE;                    // CCR0 Interrupt Enabled
    TA0CCR0 = TIME_1ms;
    //TA0CTL = TASSEL_2 | MC_1 | ID_3;    // SMCLK/8, Up Mode
/* P2.2 = 2.048MHz PWM output */

    P2SEL1 =0;
    P2SEL0 |= BIT2;                    // P2.2 CCRx Function
    P2DIR  |= BIT2;                    // Set P2.2 as output
    TA1CCR0 = 1;
    TA1CCTL2 = OUTMOD_4;                // CCR1 Toggle/set

}

#pragma vector = TIMER0_A0_VECTOR
__interrupt void Timer0_A0_ISR(void)
{
    _1msCnt++;
    _1msFlag=1;
}

void InitPeripheral(void){
    REFCAL1 = FlashTlv[TLV_CAL_REFCAL1];
    REFCAL0 = FlashTlv[TLV_CAL_REFCAL0];
    CSIRFCAL = FlashTlv[TLV_CAL_CSIRFCAL]+4;
    CSIRTCAL = FlashTlv[TLV_CAL_CSIRTCAL];
    SD24TRIM = FlashTlv[TLV_SD24_TAG];
    CSCTL0  =  0;                   // Internal Resistor
    CSCTL1 =  0;   // MCLK = DCO, SMCLK = DCO
    //P1SEL1 |=    BIT1;        // MCLK, SMCLK Pin Function
    //P1SEL0 &= ~(BIT1);
    GPIO_init();
    InitTDS();
    //InitPWG();
    InitModbus();
    InitTimer();
    //InitData();
    InitPWG();
    TaskStep=TASK_INITIAL;TaskT=0;
    StartTimer0();
}
void InitData(void)
{
    Flash_I *FlashT;
    uint16_t  i, DataValid=1;

    FlashT = (Flash_I*)(FlashBuf);
    InitFlash();
    FlashReadAll();
    for (i=1; i < TDS_CH_MAX; i++){
        if ((FlashT->TDS_CalKF[i] > MAX_TDS_CalK) || (FlashT->TDS_CalKF[i] < MIN_TDS_CalK)){
            FlashT->TDS_CalKF[i]=DEF_TDS_CalK;
            DataValid=0;
        }
    }
    for (i=1; i < TDS_CH_MAX; i++){
        if ((FlashT->TDS_CalKF[i] > MAX_TDS_CalK) || (FlashT->TDS_CalKF[i] < MIN_TDS_CalK)){
            FlashT->TDS_CalKF[i]=DEF_TDS_CalK;
            DataValid=0;
        }
    }

}

void CheckCalRange(void){
    TaskStep=TASK_MEAS_TDS;TaskT=0;
}

void Process_Task(void){
    if (TaskT) TaskT--;
    else{
        switch (TaskStep){
            case TASK_INITIAL: // Initial mode
                TaskStep++;
                TaskT=100;
                break;
            case (TASK_INITIAL+1): // Initial mode
                PWG_On();
                TaskStep=TASK_MEAS_TDS;
                TaskT=100;
                break;
            case TASK_CHECK_CAL:
                CheckCalRange();
                break;
            case TASK_MEAS_TDS:
                TDS_Task();
                break;
        }
    }
}

int main(void)
{
    InitWatchdog(); // Init WDT & Stop WDT

    /* Initialization */
    InitPeripheral();
#ifdef EN_WDT
    StartWatchdog(); // Start WDT
#endif
    _EINT();     // enable interrupt

    while (1)
    {
        if (_1msFlag)
        {
            _1msFlag = 0;
            //P2OUT^=BIT2;

            //PWG_Task();
            ModbusRxTask();
            Process_Task();

#ifdef EN_WDT
            FeedWatchdog();
#endif
        }
    }
}

I start TA1@ other function.

for previous code,

I initial TA0 and TA1 in InitTimer(). And it can't work normally.

Hi,

Its issue is similarly dependent on debug tool(MSP-FET) and CCS. When I enter debug mode, TA1 can't work with TA0 and SPI output can affect TA1, too.

I don't know how to debug it.

Or this issue is caused by CCS?

CCS has bugs for some parts?

I debug MSP430FR5992 by CCS is OK.

Hi,

The code looks fine. I am not sure if it is related to the CCS. You can find all the known issues for the CCS in the CCS release note.  https://software-dl.ti.com/ccs/esd/CCSv11/CCS_11_2_0/exports/CCS_11.2.0_ReleaseNotes.htm

Best regards,

Cash Hao

Hi,

I can't find related issues. I will try to install CCS 11.2 and then retry it.