Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 170 / 352

Pulse Width Modulator (PWM)
Prototype:
void
ROM_PWMOutputFaultLevel(uint32_t ui32Base,
uint32_t ui32PWMOutBits,
bool bDriveHigh)
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_PWMOutputFaultLevel
is a function pointer located at
ROM_PWMTABLE[22]
.
Parameters:
ui32Base is the base address of the PWM module.
ui32PWMOutBits are the PWM outputs to be modified. Must be the logical OR of
any of PWM_OUT_0_BIT , PWM_OUT_1_BIT , PWM_OUT_2_BIT , PWM_OUT_3_BIT ,
PWM_OUT_4_BIT , PWM_OUT_5_BIT , PWM_OUT_6_BIT , or PWM_OUT_7_BIT .
bDriveHigh determines if the signal is driven high or low during an active fault condition.
Description:
This function determines whether a PWM output pin that is suppressed in response to a
fault condition is driven high or low. The affected outputs are selected using the parameter
ui32PWMOutBits . The parameter bDriveHigh determines the output level for the pins identi-
fied by ui32PWMOutBits . If bDriveHigh is true then the selected outputs are driven high when
a fault is detected. If it is false , the pins are driven low.
In a fault condition, pins which have not been configured to be suppressed via a call to
ROM_PWMOutputFault() are unaffected by this function.
Note:
This function is available only on devices which support extended PWM fault handling.
Returns:
None.
15.2.1.24 ROM_PWMOutputInvert
Selects the inversion mode for PWM outputs.
Prototype:
void
ROM_PWMOutputInvert(uint32_t ui32Base,
uint32_t ui32PWMOutBits,
bool bInvert)
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_PWMOutputInvert
is a function pointer located at
ROM_PWMTABLE[12]
.
Parameters:
ui32Base is the base address of the PWM module.
170 April 8, 2013