Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 163 / 352

Pulse Width Modulator (PWM)
15.2.1.12 ROM_PWMGenFaultTriggerSet
Configures the set of fault triggers for a given PWM generator.
Prototype:
void
ROM_PWMGenFaultTriggerSet(uint32_t ui32Base,
uint32_t ui32Gen,
uint32_t ui32Group,
uint32_t ui32FaultTriggers)
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_PWMGenFaultTriggerSet
is a function pointer located at
ROM_PWMTABLE[25]
.
Parameters:
ui32Base is the base address of the PWM module.
ui32Gen is the PWM generator whose fault triggers are being set. Must be one of
PWM_GEN_0 , PWM_GEN_1 , PWM_GEN_2 , or PWM_GEN_3 .
ui32Group indicates the subset of possible faults that are to be configured. This must be
PWM_FAULT_GROUP_0 or PWM_FAULT_GROUP_1 .
ui32FaultTriggers defines the set of inputs that are to contribute towards generation of the
fault signal to the given PWM generator. For PWM_FAULT_GROUP_0 , this is the log-
ical OR of PWM_FAULT_FAULT0 , PWM_FAULT_FAULT1 , PWM_FAULT_FAULT2 ,
or PWM_FAULT_FAULT3 . For PWM_FAULT_GROUP_1 , this is the logical
OR of PWM_FAULT_DCMP0 , PWM_FAULT_DCMP1 , PWM_FAULT_DCMP2 ,
PWM_FAULT_DCMP3 , PWM_FAULT_DCMP4 , PWM_FAULT_DCMP5 ,
PWM_FAULT_DCMP6 , or PWM_FAULT_DCMP7 .
Description:
This function allows selection of the set of fault inputs that is combined to gener-
ate a fault condition to a given PWM generator.
By default, all generators use only
FAULT0 (for backwards compatibility) but if ROM_PWMGenConfigure() is called with flag
PWM_GEN_MODE_FAULT_SRC in the ui32Config parameter, extended fault handling is en-
abled and this function must be called to configure the fault triggers.
The fault signal to the PWM generator is generated by ORing together each of the sig-
nals whose inputs are specified in the
ui32FaultTriggers parameter after having adjusted
the sense of each FAULTn input based on the configuration previously set using a call to
ROM_PWMGenFaultConfigure() .
Note:
This function is only available on devices supporting extended PWM fault handling.
Returns:
None.
15.2.1.13 ROM_PWMGenIntClear
Clears the specified interrupt(s) for the specified PWM generator block.
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