AN4539 datasheet(9/33 Pages) STMICROELECTRONICS

9 / 33 page

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AN4539

Getting the kitchen ready

/* Enable HRTIM clock*/

__HRTIM1_CLK_ENABLE();

/* DLL calibration: periodic calibration enabled, period set to 14µs */

HRTIM1->sCommonRegs.DLLCR = HRTIM_CALIBRATIONRATE_14| HRTIM_DLLCR_CALEN;

/* Check DLL end of calibration flag */

while(HRTIM1->sCommonRegs.ISR & HRTIM_IT_DLLRDY == RESET);

HRTIM1->sCommonRegs.OENR = HRTIM_OENR_TD1OEN; /* Enable TD1 output */

GPIO_HRTIM_outputs_Config();

/* Initialize HRTIM outputs */

while(1)

{

/* Set and reset TD1 by software */

HRTIM1->sTimerxRegs[HRTIM_TIMERINDEX_TIMER_D].SETx1R = HRTIM_SET1R_SST;

HRTIM1->sTimerxRegs[HRTIM_TIMERINDEX_TIMER_D].RSTx1R = HRTIM_RST1R_SRT;

}

The snippet reproduced here is available in the HRTIM_Snippets and HRTIM_BasicPWM

examples. In both cases the example must be selected with the #define HRTIM_CHECK

statement.

For the remaining part of this document, the clock and DLL initialization part will not be

repeated, it will be replaced by a call to the HRTIM_Minimal_Config() function.

AN4539 Datasheet(PDF) 9 Page - STMicroelectronics