Pulse Width Modulator (PWM)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_PWMTABLE is an array of pointers located at ROM_APITABLE[8].
ROM_PWMGenIntTrigEnable is a function pointer located at ROM_PWMTABLE[14].
Parameters:
ui32Base is the base address of the PWM module.
ui32Gen is the PWM generator to have interrupts and triggers enabled. Must be one of
PWM_GEN_0, PWM_GEN_1, PWM_GEN_2, or PWM_GEN_3.
ui32IntTrig specifies the interrupts and triggers to be enabled.
Description:
Unmasks the specified interrupt(s) and trigger(s) by setting the specified bits of the inter-
rupt/trigger enable register for the specified PWM generator. The ui32IntTrig parameter
is the logical OR of PWM_INT_CNT_ZERO, PWM_INT_CNT_LOAD, PWM_INT_CNT_AU,
PWM_INT_CNT_AD, PWM_INT_CNT_BU, PWM_INT_CNT_BD, PWM_TR_CNT_ZERO,
PWM_TR_CNT_LOAD, PWM_TR_CNT_AU, PWM_TR_CNT_AD, PWM_TR_CNT_BU, or
PWM_TR_CNT_BD.
Returns:
None.
15.2.1.17 ROM_PWMGenPeriodGet
Gets the period of a PWM generator block.
Prototype:
uint32_t
ROM_PWMGenPeriodGet(uint32_t ui32Base,
uint32_t ui32Gen)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_PWMTABLE is an array of pointers located at ROM_APITABLE[8].
ROM_PWMGenPeriodGet is a function pointer located at ROM_PWMTABLE[3].
Parameters:
ui32Base is the base address of the PWM module.
ui32Gen is the PWM generator to query. Must be one of PWM_GEN_0, PWM_GEN_1,
PWM_GEN_2, or PWM_GEN_3.
Description:
This function gets the period of the specified PWM generator block. The period of the generator
block is defined as the number of PWM clock ticks between pulses on the generator block zero
signal.
If the update of the counter for the specified PWM generator has yet to be completed, the
value returned may not be the active period. The value returned is the programmed period,
measured in PWM clock ticks.
Returns:
Returns the programmed period of the specified generator block in PWM clock ticks.
166 April 8, 2013
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