LM3S317 Luminary Micro, Inc, LM3S317 Datasheet - Page 153
![no-image](/images/no-image-200.jpg)
LM3S317
Manufacturer Part Number
LM3S317
Description
Lm3s317 Arm Microcontroller
Manufacturer
Luminary Micro, Inc
Datasheet
1.LM3S317.pdf
(376 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM3S317-EQN25-C2
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S317-EQN25-C2T
Manufacturer:
Texas Instruments
Quantity:
10 000
Company:
Part Number:
LM3S317-IGZ25-C2
Manufacturer:
TI
Quantity:
168
Company:
Part Number:
LM3S317-IQN25-C2
Manufacturer:
Texas Instruments
Quantity:
135
Company:
Part Number:
LM3S317-IQN25-C2
Manufacturer:
TI
Quantity:
78
Part Number:
LM3S317-IQN25-C2
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
LM3S317-IQN25-C2T
Manufacturer:
Texas Instruments
Quantity:
10 000
- Current page: 153 of 376
- Download datasheet (3Mb)
9.3.5
9.3.6
February 6, 2007
4.
5.
6.
7.
8.
9.
In Input Edge Count Mode, the timer stops after the desired number of edge events has been
detected. To re-enable the timer, ensure that the TnEN bit is cleared and repeat steps 4-9.
16-Bit Input Edge Timing Mode
A timer is configured to Input Edge Timing mode by the following sequence:
1.
2.
3.
4.
5.
6.
7.
8.
In Input Edge Timing mode, the timer continues running after an edge event has been detected,
but the timer interval can be changed at any time by writing the GPTMTnILR register. The change
takes effect at the next cycle after the write.
16-Bit PWM Mode
A timer is configured to PWM mode using the following sequence:
1.
2.
3.
4.
5.
6.
Configure the type of event(s) that the timer captures by writing the TnEVENT field of the
GPTM Control (GPTMCTL) register.
Load the timer start value into the GPTM Timern Interval Load (GPTMTnILR) register.
Load the desired event count into the GPTM Timern Match (GPTMTnMATCHR) register.
If interrupts are required, set the CnMIM bit in the GPTM Interrupt Mask (GPTMIMR) register.
Set the TnEN bit in the GPTMCTL register to enable the timer and begin waiting for edge
events.
Poll the CnMRIS bit in the GPTMRIS register or wait for the interrupt to be generated (if
enabled). In both cases, the status flags are cleared by writing a 1 to the CnMCINT bit of the
GPTM Interrupt Clear (GPTMICR) register.
Ensure the timer is disabled (the TnEN bit is cleared) before making any changes.
Write the GPTM Configuration (GPTMCFG) register with a value of 0x4.
In the GPTM Timer Mode (GPTMTnMR) register, write the TnCMR field to 0x1 and the TnMR
field to 0x3.
Configure the type of event that the timer captures by writing the TnEVENT field of the GPTM
Control (GPTMCTL) register.
Load the timer start value into the GPTM Timern Interval Load (GPTMTnILR) register.
If interrupts are required, set the CnEIM bit in the GPTM Interrupt Mask (GPTMIMR) register.
Set the TnEN bit in the GPTM Control (GPTMCTL) register to enable the timer and start
counting.
Poll the CnERIS bit in the GPTMRIS register or wait for the interrupt to be generated (if
enabled). In both cases, the status flags are cleared by writing a 1 to the CnECINT bit of the
GPTM Interrupt Clear (GPTMICR) register. The time at which the event happened can be
obtained by reading the GPTM Timern (GPTMTnR) register.
Ensure the timer is disabled (the TnEN bit is cleared) before making any changes.
Write the GPTM Configuration (GPTMCFG) register with a value of 0x4.
In the GPTM Timer Mode (GPTMTnMR) register, set the TnAMS bit to 0x1, the TNCMR bit to
0x0, and the TnMR field to 0x2.
Configure the output state of the PWM signal (whether or not it is inverted) in the TnEVENT
field of the GPTM Control (GPTMCTL) register.
Load the timer start value into the GPTM Timern Interval Load (GPTMTnILR) register.
Load the GPTM Timern Match (GPTMTnMATCHR) register with the desired value.
Preliminary
LM3S317 Data Sheet
153
Related parts for LM3S317
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![LM3S1110](/images/no-image3.png)
Part Number:
Description:
Lm3s1110 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1133](/images/no-image3.png)
Part Number:
Description:
Lm3s1133 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1138](/images/no-image3.png)
Part Number:
Description:
Lm3s1138 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1150](/images/no-image3.png)
Part Number:
Description:
Lm3s1150 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1162](/images/no-image3.png)
Part Number:
Description:
Lm3s1162 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1165](/images/no-image3.png)
Part Number:
Description:
Lm3s1165 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1332](/images/no-image3.png)
Part Number:
Description:
Lm3s1332 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1435](/images/no-image3.png)
Part Number:
Description:
Lm3s1435 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1439](/images/no-image3.png)
Part Number:
Description:
Lm3s1439 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1512](/images/no-image3.png)
Part Number:
Description:
Lm3s1512 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1538](/images/no-image3.png)
Part Number:
Description:
Lm3s1538 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1601](/images/no-image3.png)
Part Number:
Description:
Lm3s1601 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1607](/images/no-image3.png)
Part Number:
Description:
Lm3s1607 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet:
![LM3S1608](/images/no-image3.png)
Part Number:
Description:
Lm3s1608 Arm Microcontroller
Manufacturer:
Luminary Micro, Inc
Datasheet: