STM32W108B-SK STMicroelectronics, STM32W108B-SK Datasheet - Page 121
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
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Part Number
Manufacturer
Quantity
Price
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STM32W108CB, STM32W108HB
Figure 33. PWM input mode timing
10.1.7
For example, to measure the period in the TIMx_CCR1 register and the duty cycle in the
TIMx_CCR2 register of the PWM applied on TI1, use the following procedure depending on
CK_INT frequency and prescaler value:
●
●
●
●
●
●
●
Forced output mode
In output mode (CCyS bits = 00 in the TIMx_CCMR1 register), software can force each
output compare signal (OCyREF and then OCy) to an active or inactive level independently
of any comparison between the output compare register and the counter.
To force an output compare signal (OCyREF/OCy) to its active level, write 101 in the
TIM_OCyM bits in the corresponding TIMx_CCMR1 register. OCyREF is forced high
(OCyREF is always active high) and OCy gets the opposite value to the TIM_CCyP polarity
bit. For example, TIM_CCyP = 0 defines OCy as active high, so when OCyREF is active,
OCy is also set to a high level.
Select the active input for TIMx_CCR1: write the TIM_CC1S bits to 01 in the
TIMx_CCMR1 register (TI1 selected).
Select the active polarity for TI1FP1, used both for capture in the TIMx_CCR1 and
counter clear, by writing the TIM_CC1P bit to 0 (active on rising edge).
Select the active input for TIMx_CCR2by writing the TIM_CC2S bits to 10 in the
TIMx_CCMR1 register (TI1 selected).
Select the active polarity for TI1FP2 (used for capture in the TIMx_CCR2) by writing the
TIM_CC2P bit to 1 (active on falling edge).
Select the valid trigger input by writing the TIM_TS bits to 101 in the TIMx_SMCR
register (TI1FP1 selected).
Configure the slave mode controller in reset mode by writing the TIM_SMS bits to 100
in the TIMx_SMCR register.
Enable the captures by writing the TIM_CC1E and TIM_CC2E bits to 1 in the
TIMx_CCER register.
Doc ID 16252 Rev 8
General-purpose timers
121/209
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