Triggering SDADC (stm32f373) from RTC (LSE)

mailbox · ‎2016-09-22

Posted on September 22, 2016 at 15:19

Hello,

I have a project based on stm32f373,

I'd like to trigger sdadc conversion with RTC synchronyzed frequency,

are there any solutions to do this without external routing MCO output(LSE) -> Timer Input -> Triggering SDADC from timer?

#rtc #sdadc #stm32f373

Walid FTITI_O · ‎2016-09-22

Posted on September 22, 2016 at 18:06

Hi ryabov.alexander,

You can use the interconnection between timers and SDADC without using any external path. Just configure the timer to trigger internally the SDADC for conversion. I recommend that you take a look to the application note AN4651 ''STM23F3 series peipheral interconnect matrix'' , part ''3.2 From TIM and EXTI to SDADC'' table 15.

You can user CubeMx tool to generate the initialization code.

-Hannibal-