Is it possible without STM32F103 'crystal'?

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myksj1105
Posts: 86
Joined: Sun Jun 18, 2023 11:35 am
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Is it possible without STM32F103 'crystal'?

Post by myksj1105 »

Is it possible without STM32F103 'crystal'?

hello. Nice to meet you.
Looking at the circuit diagram, we confirmed that it was implemented without a 'crystal' or 'oscillator'.

Q1) Is it possible to operate without ‘crystal’?
Q2) Is there a way to code in 'Arduino IDE'?

I wonder. help me~.
by ag123 » Tue Oct 10, 2023 3:00 pm
yes, that is running on HSI (internal RC oscillator), system clock may drift but for some apps it is ok.
I think if you want to do that you can try one of the 'generic' variants in stm core
https://github.com/stm32duino/Arduino_Core_STM32

if you are new to this
it would help to check out the wiki
https://github.com/stm32duino/Arduino_Core_STM32/wiki
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ag123
Posts: 1738
Joined: Thu Dec 19, 2019 5:30 am
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Re: Is it possible without STM32F103 'crystal'?

Post by ag123 »

yes, that is running on HSI (internal RC oscillator), system clock may drift but for some apps it is ok.
I think if you want to do that you can try one of the 'generic' variants in stm core
https://github.com/stm32duino/Arduino_Core_STM32

if you are new to this
it would help to check out the wiki
https://github.com/stm32duino/Arduino_Core_STM32/wiki
myksj1105
Posts: 86
Joined: Sun Jun 18, 2023 11:35 am
Answers: 2

Re: Is it possible without STM32F103 'crystal'?

Post by myksj1105 »

@ag123

Thank you for quick response.
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