LAUNCHCC3220MODASF: How To Configure TIMER0, TIMER1. TIMER2 in 16 bit timer A and B mode....?

Hi Michael,

Based on you reply i have tried some other things now...but still it doesn't resolved my problem Still Timer_open() API call fails.

lets us say i want to use Board_TIMER1 as a 16 bit mode A and B. and Board_TIMER0 as 32 bit mode So below is my code snippets please check it out..

this from my application files....

    int32_t Status = -1;
    Timer_Handle handle_timer_0;
    //Timer_Handle handle_timer_1;
    Timer_Handle handle_timer_1A;
    Timer_Handle handle_timer_1B;
    //Timer_Handle handle_timer_2;
    Timer_Params params_timer_0;
    //Timer_Params params_timer_1;
    Timer_Params params_timer_1A;
    Timer_Params params_timer_1B;
    //Timer_Params params_timer_2;

    //initialize timer parameters
    Timer_Params_init(&params_timer_0);         //timer 0
    //Timer_Params_init(&params_timer_1);         //timer 1
    Timer_Params_init(&params_timer_1A);         //timer 1A
    Timer_Params_init(&params_timer_1B);         //timer 1B
    //Timer_Params_init(&params_timer_2);         //timer 2

    //timer 0
    params_timer_0.periodUnits = Timer_PERIOD_US;
    params_timer_0.period = 5000000;
    params_timer_0.timerMode  = Timer_CONTINUOUS_CALLBACK;
    params_timer_0.timerCallback = TIMER0_ISR_Handler;

    handle_timer_0 = Timer_open(Board_TIMER0, &params_timer_0);
    if(handle_timer_0 == NULL) {
        UART_PRINT("Unable to open to Timer 0 Handle\n\n\r");
        while(1);
    }

    Status = Timer_start(handle_timer_0);
    if(Status == Timer_STATUS_ERROR) {
        UART_PRINT("Unable to Start Timer 0 \n\n\r");
        while(1);
    }
/*
    //timer 1
    params_timer_1.periodUnits = Timer_PERIOD_US;
    params_timer_1.period = 5000000;
    params_timer_1.timerMode  = Timer_CONTINUOUS_CALLBACK;
    params_timer_1.timerCallback = TIMER1_ISR_Handler;

    handle_timer_1 = Timer_open(Board_TIMER1, &params_timer_1);
    if(handle_timer_1 == NULL) {
        UART_PRINT("Unable to open to Timer 1 Handle\n\n\r");
        while(1);
    }

    Status = Timer_start(handle_timer_1);
    if(Status == Timer_STATUS_ERROR) {
        UART_PRINT("Unable to Start Timer 1 \n\n\r");
        while(1);
    }
*/

    //timer 1A
    params_timer_1A.periodUnits = Timer_PERIOD_US;
    params_timer_1A.period = 5000000;
    params_timer_1A.timerMode  = Timer_CONTINUOUS_CALLBACK;
    params_timer_1A.timerCallback = TIMER1A_ISR_Handler;

    handle_timer_1A = Timer_open(Board_TIMER1A, &params_timer_1A);
    if(handle_timer_1A == NULL) {
        UART_PRINT("Unable to open to Timer 1A Handle\n\n\r");
        while(1);
    }

    Status = Timer_start(handle_timer_1A);
    if(Status == Timer_STATUS_ERROR) {
        UART_PRINT("Unable to Start Timer 1A \n\n\r");
        while(1);
    }

    //timer 1B
    params_timer_1B.periodUnits = Timer_PERIOD_US;
    params_timer_1B.period = 5000000;
    params_timer_1B.timerMode  = Timer_CONTINUOUS_CALLBACK;
    params_timer_1B.timerCallback = TIMER1B_ISR_Handler;

    handle_timer_1B = Timer_open(Board_TIMER1B, &params_timer_1B);
    if(handle_timer_1B == NULL) {
        UART_PRINT("Unable to open to Timer 1B Handle\n\n\r");
        while(1);
    }

    Status = Timer_start(handle_timer_1B);
    if(Status == Timer_STATUS_ERROR) {
        UART_PRINT("Unable to Start Timer 1B \n\n\r");
        while(1);
    }

Below is my configuration from Board.h file

#define Board_TIMER0                 CC3220SF_LAUNCHXL_TIMER0
//#define Board_TIMER1                 CC3220SF_LAUNCHXL_TIMER1
//#define Board_TIMER2                 CC3220SF_LAUNCHXL_TIMER2
#define Board_TIMER1A                 CC3220SF_LAUNCHXL_TIMER1A          //this is not present by default in board.h 
#define Board_TIMER1B                 CC3220SF_LAUNCHXL_TIMER1B          //this is not present by default in board.h 

please note that in above snippet Board_TIMER1A, and Board_TIMER1B is i have defined my self and didnt came in SDK originally so this both are user defined...

Below is my code snippet from launchxl.h file

/*!
 *  @def    CC3220SF_LAUNCHXL_TimerName
 *  @brief  Enum of Timer names on the CC3220SF_LAUNCHXL dev board
 */
typedef enum CC3220SF_LAUNCHXL_TimerName {
    CC3220SF_LAUNCHXL_TIMER0 = 0,
    //CC3220SF_LAUNCHXL_TIMER1,
    //CC3220SF_LAUNCHXL_TIMER2,
    CC3220SF_LAUNCHXL_TIMER1A,
    CC3220SF_LAUNCHXL_TIMER1B,

    CC3220SF_LAUNCHXL_TIMERCOUNT
} CC3220SF_LAUNCHXL_TimerName;

Same in above code 

CC3220SF_LAUNCHXL_TIMER1A, and

CC3220SF_LAUNCHXL_TIMER1B  both are here is user defined i have defined by myself.


and below config structure from Board.c file

const TimerCC32XX_HWAttrs timerCC3220SFHWAttrs[CC3220SF_LAUNCHXL_TIMERCOUNT] = {
    {
        .baseAddress = TIMERA0_BASE,
        .subTimer = TimerCC32XX_timer32,
        .intNum = INT_TIMERA0A,
        .intPriority = ~0
    },
    {
        .baseAddress = TIMERA1_BASE,
        .subTimer = TimerCC32XX_timer16A,
        .intNum = INT_TIMERA1A,
        .intPriority = ~0
    },
    {
        .baseAddress = TIMERA1_BASE,
        .subTimer = TimerCC32XX_timer16B,
        .intNum = INT_TIMERA1B,
        .intPriority = ~0
    },
};

and timer config structures is

const Timer_Config Timer_config[CC3220SF_LAUNCHXL_TIMERCOUNT] = {
    {
        .fxnTablePtr = &TimerCC32XX_fxnTable,
        .object = &timerCC3220SFObjects[CC3220SF_LAUNCHXL_TIMER0],
        .hwAttrs = &timerCC3220SFHWAttrs[CC3220SF_LAUNCHXL_TIMER0]
    },
    {
        .fxnTablePtr = &TimerCC32XX_fxnTable,
        .object = &timerCC3220SFObjects[CC3220SF_LAUNCHXL_TIMER1A],
        .hwAttrs = &timerCC3220SFHWAttrs[CC3220SF_LAUNCHXL_TIMER1A]
    },
    {
        .fxnTablePtr = &TimerCC32XX_fxnTable,
        .object = &timerCC3220SFObjects[CC3220SF_LAUNCHXL_TIMER1B],
        .hwAttrs = &timerCC3220SFHWAttrs[CC3220SF_LAUNCHXL_TIMER1B]
    },
};

so this all my configurations regarding TIMER0 as well as for TIMER1

but if my Run my Application code i am again getting Error...Timer_Open Call is failing here....

Can you Suggest me Something Where i am doing Mistake here..

Thanks for your Support Michael.....

Hope for A Reply....

Hi Michael,

                          Thanks for you reply. As you suggested i have include both the Timer Driver files in my projects Timer.c and TimerCC32xx.c Both.

When i have Debug my programs through CCS version 8.1 and i am using Ti-RTOS also, i have found in code TimerCC32XX_open() Function call is failing at some place.

below is code snippet for TimerCC32xx_open() api call code.

in this function call i am getting NULL at particular this stage....in TimerCC32xx.c driver file.

/* If using a half timer */
    if (hwAttrs->subTimer != TimerCC32XX_timer32) {

        if (object->period > 0xFFFF) {

            /* 24-bit resolution for the half timer */
            if (object->period >= (1 << 24)) {

                TimerCC32XX_close(handle);

                return (NULL);
            }

            getPrescaler(handle);
        }
    }

so above you can see when it comes to see 24 bit resolution for the half timer its checking object period >= (1 << 24)

this condition becomes true and its closing the handle here and returning NULL.

what i have to do to resolve this issue....

Can you Suggest something.......please....?