DocID024597 Rev 5 907/1830
RM0351 Advanced-control timers (TIM1/TIM8)
981
the Center-aligned mode (up/down counting) on page 887.
Figure 248 shows some center-aligned PWM waveforms in an example where:
• TIMx_ARR=8,
• PWM mode is the PWM mode 1,
• The flag is set when the counter counts down corresponding to the center-aligned
mode 1 selected for CMS=01 in TIMx_CR1 register.
Figure 248. Center-aligned PWM waveforms (ARR=8)
Hints on using center-aligned mode
• When starting in center-aligned mode, the current up-down configuration is used. It
means that the counter counts up or down depending on the value written in the DIR bit
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