TI1 control two timer starts

1. Main mode trigger output (TIMx_CR2 MMS):
   choose what output signal as a trigger *** *** for the configuration TRGO
   
   2. Select from the mode input pin (TIMx_SMCR)
   for receiving a pin TI *** trigger input ***
   

2. Choose from a mode

4. By writing MSM = 1 (TIMx_SMCR register) a timer configured as a master / slave mode

The timer trigger input pin selection 2 (TS TIM2_SMCR register = 000)

to select one of the pin and TRGO timer 1 is connected to specific internal connection as follows:

6. 2 configured to trigger the timer mode (TIM2_SMCR register SMS = 110).

At this point, you can simultaneously control two timer started simultaneously by TI pin For the corresponding need to stop timer CEN cleared.

Flowchart:
TI1-> 1 from the timer mode (Trigger) - (trigger)> From the Timer Mode 2 -> 1 master timer mode (enabled) -> TGRO-> Timer 2 (ITR0)