Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 45 / 352

Analog to Digital Converter (ADC)
as ADC_PHASE_0 and ADC_PHASE_180 ) and having each ADC module sample the same
analog input, it is possible to increase the sampling rate of the analog input (with samples N,
N+2, N+4, and so on, coming from the first ADC and samples N+1, N+3, N+5, and so on,
coming from the second ADC). The ADC module has a single phase delay that is applied to all
sample sequences within that module.
Returns:
None.
5.2.1.15 ROM_ADCProcessorTrigger
Causes a processor trigger for a sample sequence.
Prototype:
void
ROM_ADCProcessorTrigger(uint32_t ui32Base,
uint32_t ui32SequenceNum)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_ADCTABLE
is an array of pointers located at
ROM_APITABLE[5]
.
ROM_ADCProcessorTrigger
is a function pointer located at
ROM_ADCTABLE[13]
.
Parameters:
ui32Base
is the base address of the ADC module.
ui32SequenceNum
is the sample sequence number, with
ADC_TRIGGER_WAIT
or
ADC_TRIGGER_SIGNAL optionally ORed into it.
Description:
This function triggers a processor-initiated sample sequence if the sample sequence trigger
is configured to
ADC_TRIGGER_PROCESSOR . If ADC_TRIGGER_WAIT is ORed into the
sequence number, the processor-initiated trigger is delayed until a later processor-initiated
trigger to a different ADC module that specifies
ADC_TRIGGER_SIGNAL , allowing multiple
ADCs to start from a processor-initiated trigger in a synchronous manner.
Returns:
None.
5.2.1.16 ROM_ADCReferenceGet
Returns the current setting of the ADC reference.
Prototype:
uint32_t
ROM_ADCReferenceGet(uint32_t ui32Base)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_ADCTABLE
is an array of pointers located at
ROM_APITABLE[5]
.
ROM_ADCReferenceGet
is a function pointer located at
ROM_ADCTABLE[23]
.
April 8, 2013 45