MQX Software SolutionsのトピックRe: Proper hwtimer bsp definition

Proper hwtimer bsp definition

jamesmonczynski — Wed, 10 Sep 2014 12:24:58 GMT

I need to change hwtimer2 definition.

After creating my custom k70, the default is:

/* HWTIMER definitions for user applications */

#define BSP_HWTIMER1_DEV pit_devif

#define BSP_HWTIMER1_SOURCE_CLK (CM_CLOCK_SOURCE_BUS)

#define BSP_HWTIMER1_ID (0)

#define BSP_HWTIMER2_DEV lpt_devif

#define BSP_HWTIMER2_SOURCE_CLK (CM_CLOCK_SOURCE_LPO)

#define BSP_HWTIMER2_ID (0)

because I needed a pit timer, not an lpo, I changed it to:

/* HWTIMER definitions for user applications */

#define BSP_HWTIMER1_DEV pit_devif

#define BSP_HWTIMER1_SOURCE_CLK (CM_CLOCK_SOURCE_BUS)

#define BSP_HWTIMER1_ID (0)

#define BSP_HWTIMER2_DEV pit_devif //was lpt_devif

#define BSP_HWTIMER2_SOURCE_CLK (CM_CLOCK_SOURCE_BUS) //was (CM_CLOCK_SOURCE_LPO)

#define BSP_HWTIMER2_ID (1)

I would like to know if this is the proper/standard way of updating the hwtimer definition?

Or, is there another way using the user_config.h to do the same (I couldn't find any setting for hwtimers).

Thanks for any info.

Re: Proper hwtimer bsp definition

RadekS — Wed, 17 Sep 2014 15:11:21 GMT

Yes, you can use definitions in twrk70f120m.h file for initialization your own application timer.

On other hand, this definitions are not necessary - they are there just for standardization of hwtimer example code across MCUs portfolio. You can define these values directly in your code or use directly numbers in hwtimer_init() function.

For example:

HWTIMER hwtimer5;

/* Initialize hwtimer5 */

result = hwtimer_init(&hwtimer5, &pit_devif, 5, 3);

if (MQX_OK != result)

{

return result;

}

Have a great day,
RadekS

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Re: Proper hwtimer bsp definition

jamesmonczynski — Wed, 17 Sep 2014 15:13:30 GMT

Thanks, I did not know that.