STM32W108B-SK STMicroelectronics, STM32W108B-SK Datasheet - Page 120
STM32W108B-SK
Manufacturer Part Number
STM32W108B-SK
Description
STARTER KIT FOR STM32W108
Manufacturer
STMicroelectronics
Series
STM32r
Type
MCUr
Datasheets
1.STM32W108B-KEXT.pdf
(3 pages)
2.STM32W108B-KEXT.pdf
(209 pages)
3.STM32W108B-KEXT.pdf
(27 pages)
4.STM32W108B-KEXT.pdf
(6 pages)
5.STM32W108B-SK.pdf
(21 pages)
6.STM32W108B-KEXT.pdf
(14 pages)
7.STM32W108B-KEXT.pdf
(36 pages)
Specifications of STM32W108B-SK
Featured Product
STM32 Cortex-M3 Companion Products
Contents
Board
Silicon Manufacturer
ST Micro
Core Architecture
ARM
Core Sub-architecture
Cortex - M3
Silicon Core Number
STM32
Silicon Family Name
STM32W108xx
Kit Contents
Board
Features
IEEE
Mfg Application Notes
STM32W108 Adjacent Channel Rejection Measurements
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
*
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- STM32W108B-KEXT PDF datasheet
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- STM32W108B-KEXT PDF datasheet #4
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- STM32W108B-KEXT PDF datasheet #6
- STM32W108B-KEXT PDF datasheet #7
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- Download datasheet (3Mb)
General-purpose timers
Note:
10.1.6
120/209
cleared by software writing a 1 to its bit or reading the captured data stored in the
TIMx_CCRy register. To clear the INT_TIMMISSCCyIF bit, write a 1 to it.
The following example shows how to capture the counter value in the TIMx_CCR1 when the
TI1 input rises.
●
●
●
●
●
●
●
To detect missed captures reliably, read captured data in TIMxCCRy before checking the
missed capture/compare flag. This sequence avoids missing a capture that could happen
after reading the flag and before reading the data.
Software can generate IC interrupt requests by setting the corresponding TIM_CCyG bit in
the TIMx_EGR register.
PWM input mode
This mode is a particular case of input capture mode. The procedure is the same except:
●
●
●
Select the active input: TIMx_CCR1 must be linked to the TI1 input, so write the
TIM_CC1S bits to 01 in the TIMx_CCMR1 register. As soon as TIM_CC1S becomes
different from 00, the channel is configured in input and the TIMx_CCR1 register
becomes read-only.
Program the required input filter duration with respect to the signal connected to the
timer, when the input is one of the TIy (ICyF bits in the TIMx_CCMR1 register).
Consider a situation in which, when toggling, the input signal is unstable during at most
5 internal clock cycles. The filter duration must be longer than these 5 clock cycles. The
transition on TI1 can be validated when 8 consecutive samples with the new level have
been detected (sampled at PCLK frequency). To do this, write the TIM_IC1F bits to
0011 in the TIMx_CCMR1 register.
Select the edge of the active transition on the TI1 channel by writing the TIM_CC1P bit
to 0 in the TIMx_CCER register (rising edge in this case).
Program the input prescaler: In this example, the capture is to be performed at each
valid transition, so the prescaler is disabled (write the TIM_IC1PS bits to 00 in the
TIMx_CCMR1 register).
Enable capture from the counter into the capture register by setting the TIM_CC1E bit
in the TIMx_CCER register.
If needed, enable the related interrupt request by setting the INT_TIMCC1IF bit in the
INT_TIMxCFG register.
When an input capture occurs:
–
–
–
Two ICy signals are mapped on the same TIy input.
These two ICy signals are active on edges with opposite polarity.
One of the two TIyFP signals is selected as trigger input and the slave mode controller
is configured in reset mode.
The TIMx_CCR1 register gets the value of the counter on the active transition.
INT_TIMCC1IF flag is set (capture/compare interrupt flag). The missed
capture/compare flag INT_TIMMISSCC1IF in INT_TIMxMISS is also set if another
capture occurs before the INT_TIMCC1IF flag is cleared.
An interrupt may be generated if enabled by the INT_TIMCC1IF bit.
Doc ID 16252 Rev 8
STM32W108CB, STM32W108HB
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