RTOS/CC2640R2F: RTOS: How to set up code for multi peroid Clock (or Timer) driving to same LED (or GPIO-OUT)

richard payne

Part Number: CC2640R2F

Tool/software: TI-RTOS

I'm have a working clock code that flash LED every 1 second (see below). I like to modify the code that generate Pattern based LED

Every 1 second

Period = 200mSec ON

Period = 400mSec OFF

Period = 500mSec ON

Period = 1000mSec OFF

repeat above every 1 second forever (include sleep to save power).Each Peroid has it own fxn interrupt function code that set/clear the LED (and also do another purpose).

I like to use static implementation, how to do that?

// Example code

Clock_HB_Counter = 1000;
Clock_State=0;
Clock_Params_init(&clkParams_HB);
clkParams_HB.period = 1000000/Clock_tickPeriod; // Set to 1Sec
clkParams_HB.startFlag = TRUE;

/* Construct a periodic Clock Instance */
Clock_construct(&clkStruct_HB, (Clock_FuncPtr)LED_Clock_HeartBeat_Fxn, 1000000/Clock_tickPeriod, &clkParams_HB);
clkParams_HB.period = 0;
clkParams_HB.startFlag = TRUE;
clkHandle_HB = Clock_handle(&clkStruct_HB);

Clock_start(clkHandle_HB);

over 6 years ago

0 Klas Lofstedt over 6 years ago

TI__Intellectual 1945 points

Hi Richard,

you can use Clock_setPeriod to reschedule your period. More about the API here: software-dl.ti.com/.../Clock.html

Regards,

Klas

0 Markel Robregado over 6 years ago

Guru 86235 points

Hi Richard,

I suggest you use util clock functions. Example use of util clock function can be seen at simple peripheral periodic clock. You need to initialize a one shot periodic clock with 0 timeout. Then call util_restartClock(). But, if you need to have led on period and led off interval, then you need to implement some code to handle that.

/**
 * @brief   Restart a clock by changing the timeout.
 *
 * @param   pClock - pointer to clock struct
 * @param   clockTimeout - longevity of clock timer in milliseconds
 */
extern void Util_restartClock(Clock_Struct *pClock, uint32_t clockTimeout);

- kel

0 Klas Lofstedt over 6 years ago in reply to Markel Robregado

TI__Intellectual 1945 points

What Markel said makes sense,

More about the util API can be found here: dev.ti.com/.../group___util.html

Regards,

Klas

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RTOS/CC2640R2F: RTOS: How to set up code for multi peroid Clock (or Timer) driving to same LED (or GPIO-OUT)