XDC runtime error: ti.sysbios.hal.Timer.Params#1: no property named 'MAX_PERIOD'

Markus,
is App_ti81xx_dsp.cfg the name of your config script or your config script is including that file? What's on the line 129? While it does not refer to MAX_PERIOD, it could give some hints to what went wrong.

App_ti81xx_dsp.cfg is the name of my config script. Line 129 is this one (the last of the lines I posted above):

HalTimer.create( Timer.ANY, '&tmrTriggerSignalTransfer', SignalTransferTimerParams );

Thanks,

Markus

I can't really tell what is 'Timer' in the code you posted, but I am guessing somewhere in your code you have:
var Timer = xdc.useModule('ti.sysbios.timers.dmtimer.Timer');

That other timer module is ISA-specific and has different config parameters. If you create a param structure appropriate for dmtimer.Timer and then pass that structure when creating an instance of hal.Timer, the configuration fails when an unknown parameter is detected. If you need to use dmtimer then create its instance and use its Params structure. Otherwise, use hal.Timer for creating the Params structure.

Hello,

you were right, I mixed up two timers. After I corrected this, the program compiles fine. The config (related to timers) looks like this:

/* Set the BIOS timer frequency  to 32KHz so as to match with the default timer
 * frequency on Linux
 * This comes from the syslink examples:
 * syslink_02_00_00_68_beta1/ti/syslink/samples/rtos/messageQ/ti81xx/MessageQ_ti81xx_dsp.cfg
 * Unfortunately, I don't know why we need it and what it does.
 */
var DmTimer        = xdc.useModule('ti.sysbios.timers.dmtimer.Timer');
DmTimer.intFreq.hi = 0;
DmTimer.intFreq.lo = 32768;

/* ... */

/*
 * Configure a timer that starts data transfer from FPGA to DSP
 * See documentation in spruex3g, 6.3 Timer Module and
 * file:///opt/ti/CCSv5/bios_6_31_04_27/docs/cdoc/ti/sysbios/hal/Timer.html
 */
var HalTimer = xdc.useModule( 'ti.sysbios.hal.Timer' );
var SignalTransferTimerParams = new HalTimer.Params();

/* Have a look at the fifo every 256 samples / 131072 samples/second seconds
 * The fifo should be half-filled after this period */
SignalTransferTimerParams.periodType = HalTimer.PeriodType_MICROSECS;
SignalTransferTimerParams.period = 500000;  /*1953;*/

/* Continue the timer and start it automatically with BIOS_start() */
SignalTransferTimerParams.runMode = HalTimer.RunMode_CONTINUOUS;
SignalTransferTimerParams.startMode = HalTimer.StartMode_AUTO;

/* Finally, create the timer */
HalTimer.create( HalTimer.ANY, '&tmrTriggerSignalTransfer', SignalTransferTimerParams );

Unfortunately, the program fails during initialisation. When I attach the CCS debugger, I can see that the program loops forever in

initDevice(struct ti_sysbios_timers_dmtimer_Timer_Object *, struct xdc_runtime_Error_Block *)() at Timer.c:145 0x8B0226F0    
which should be declared here, according to the ccs debugger:

ti/sysbios/timers/dmtimer/Timer.c

/*
 *  ======== initDevice ========
 */
static Void initDevice(Timer_Object *obj, Error_Block *eb)
{
    TimerRegs *timer;
    UInt hwiKey;

    Timer_TimerSupportProxy_enable(obj->id, eb);

    timer = (TimerRegs *)Timer_module->device[obj->id].baseAddr;

    hwiKey = Hwi_disable();

    timer->tclr = 0;
    while (timer->twps & TIMER_TWPS_W_PEND_TCLR)  // line 145
        ;
    timer->tcrr = 0;
    while (timer->twps & TIMER_TWPS_W_PEND_TCRR)
        ;
    timer->tldr = 0;
    while (timer->twps & TIMER_TWPS_W_PEND_TLDR)
        ;

    if (obj->hwi) {
        /* clear any previously latched timer interrupts */
        Hwi_clearInterrupt(obj->intNum);
        Hwi_disableInterrupt(obj->intNum);
    }

    Hwi_restore(hwiKey);
}

Now I'm stuck again. I tried commenting out the DmTimer lines, but nothing changed...

I hope you can help agin,

Markus

Hello,

to make things worse: The program is looping at the same location if I configure the timer at runtime, like this:

    Timer_Params SignalTransferTimerParams;
    Timer_Params_init( &SignalTransferTimerParams );

    SignalTransferTimerParams.periodType = Timer_PeriodType_MICROSECS;
    SignalTransferTimerParams.period = 500000;
    SignalTransferTimerParams.runMode = Timer_RunMode_CONTINUOUS;
    SignalTransferTimerParams.startMode = Timer_StartMode_AUTO;

    Timer_create( Timer_ANY, tmrTriggerSignalTransfer, &SignalTransferTimerParams, NULL );

The bold line never returns, exacly like in my previous post...

Hello Judah,

sorry, but I have not enough experience with SYSBIOS to handle your answer.

-Which write address of *timer do you mean? How can I find it out?

-I followed the instructions in spruex3g for creating a timer (both static and at runtime). Are any additional steps necessary to enable or clock the timer? Again, how do I find out if the timer is getting clocked?

-I have access to the timer structure from CCS memory window. What do you mean by "do this" there?

Many thanks for your help,

Markus