why stm32 TIM5 has no ETR pin?

coolmailbox · ‎2009-02-17

Posted on February 18, 2009 at 06:41

coolmailbox · ‎2011-05-17

Posted on May 17, 2011 at 13:03

Hello!

I need to detect 6 channels pulse input, but I find that TIM5 has no ETR pin, please refer to the table 5(High-density STM32F103xx pin definitions)in STM32_Datasheet, there is no definition of TIM5_ETR.

Thanks for help!

[ This message was edited by: coolmailbox on 18-02-2009 05:38 ]

coolmailbox · ‎2011-05-17

Posted on May 17, 2011 at 13:03

Is TIM5 different from the other timer? From tim1 to tim4, and tim8, all have ETR pin, only tim5 has no ETR pin, why? :o