ChibiOS Free Embedded RTOS

Posted: **Wed Dec 12, 2012 11:25 am**

Hi all,
I'm using PWM in STM32. I read in pwm.h file:

/**
 * @brief   Standard output modes mask.
 */
#define PWM_OUTPUT_MASK                         0x0F

I don't understand the "output modes mask" of PWM. Please explain to me.
Thanks in advance.

Posted: **Wed Dec 12, 2012 11:59 am**

Hi,

It is not an actual mode, it is the mask of the bits reserved for the output mode in that word (4 bits), an AND operation with that constant allows to isolate the actual mode.

Giovanni

ChibiOS Free Embedded RTOS

Problem in PWM: PWM_OUTPUT_MASK

Problem in PWM: PWM_OUTPUT_MASK

Re: Problem in PWM: PWM_OUTPUT_MASK