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Increasing the ports speed of stm32f103

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mohammad60

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i want to increase speed of ports of st32f103 ?
i have 4mhz with set and reset of one pin?
but i want to receive 18mhz?
please help me
 

Ave_Rapina

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Re: stm32f103

Hello,

First , you need to configure the clock pll and then chose the correct value of the prescaler to provide to the gpio divice attached to the port.

Instructions regarding the commads to configure the clock you can find at stm.

And 18 Mhz?? Hum i think is not so high. I never tested.

If you need sample code, and the libraries, send email

Regards
 

bobcat1

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Re: stm32f103

Hi

The STM32 DS says it can switch I/O as fast as 50MHz

But you have to configer the clock & PLL to work as fast as this micro can - 72MHz

All the best

Bobi

The microcontroller specialist
 

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