TDA4VEN-Q1: Using timer on mcu20

xie jc

Part Number: TDA4VEN-Q1
Other Parts Discussed in Thread: TDA4VM

Tool/software:

Dear TI's expert,

SDK Ver:SDK10.0

We are currently trying to implement the GPIO analog PWM function. We need to use a timer on the MCU20 to periodically flip the GPIO port. How can I use the timer?

Btw,I also asked the same question on TDA4VM. Is the method of using timers and interrupts the same for TDA4Ven and TDA4VM?

Regards.

6 months ago

0 Brijesh Jadav 6 months ago

TI__Guru**** 475325 points

Hi xie jc,

Yes, its pretty much the same. but we need to understand the details like which timer, which gpio you are planning to use?

Regards,

Brijesh

0 xie jc 6 months ago in reply to Brijesh Jadav

Expert 2160 points

Hi Brijesh,

I'm using main timer7 and gpio0_56(AB25).

Can you help me check if my interrupt function is working? Because I found that the interrupt handling function was not executed.

#define TIMER7_IRQ_NUM  159
static int32_t DMTimer_IntrInit()
{
    int32_t status = SystemP_SUCCESS;
    HwiP_Object hwiObj;
    HwiP_Params hwiPrms;

    /* Initialize with defaults */
    HwiP_Params_init(&hwiPrms);

    /* Populate the interrupt parameters */
    hwiPrms.args = (void *)OS_MAIN_TIMER7_CFG_BASE;
    hwiPrms.callback = &OsSysTimer_ISR;
    hwiPrms.eventId = 0; /* Event going in to CPU */
    hwiPrms.intNum = TIMER7_IRQ_NUM; /* Host Interrupt vector */

    /* Register interrupts */
    status = HwiP_construct(&hwiObj,&hwiPrms);
    DebugP_assert(status==SystemP_SUCCESS);
    return (0);
}

Regards.

0 Brijesh Jadav 6 months ago in reply to xie jc

TI__Guru**** 475325 points

hi xie jc,

i am sorry, but what exactly do you require? Do you want to generate pwm signal on this pin based on timer?

Regards,

Brijesh

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TDA4VEN-Q1: Using timer on mcu20