How to change default 42/72/128 MHz to 8/16Mhz

rogerclarkmelbourne / Arduino_STM32

Arduino STM32. Hardware files to support STM32 boards, on Arduino IDE 1.8.x including LeafLabs Maple and other generic STM32F103 boards

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Closed gopalreddylakki closed 4 months ago

gopalreddylakki commented 4 months ago

I need the STM32F103 to run on 8 or 16 MHz how we can run it on this frequency.

my application have low power application

stevstrong commented 4 months ago

Sorry but 8MHz frequency is not supported by this core. More information about how this core sets the CPU frequency you can find here: https://github.com/rogerclarkmelbourne/Arduino_STM32/blob/338020bee1491a3876d4b0bdd26ea0a395c89c38/STM32F1/variants/generic_stm32f103c/wirish/boards_setup.cpp#L45-L96 and in the user's manual RM0008.

To setup 16 MHz you have to change the value of ...build.f_cpu of the corresponding board to 16000000.

gopalreddylakki commented 4 months ago

Ok thank you i need 8Mhz i will try