About cp19

cp19 · 2023-12-11

The MCU is STM32G031J6 on a STM32G0316-DISCO board.The maximum software pin toggling speed I am able to achieve is about 0.7 us.It looks a bit slow for a M0+ running at 48 mhz.Looking at listing file, there is no library overhead (I am using LL).Can ...

cp19 · 2023-12-11

Solved, thank you all.My bad. Inexperienced with Stm32Cube, I was always flashing the MCU with the Debug build.Attached there are the listing of the main loop and the output.

cp19 · 2023-12-11

>the MCU with bus traffic to the AHB/APB, which realistically is going to take at least 4 machine cycles.As far as I know, this MCU features the 'single cycle' IOPORT.

cp19 · 2023-12-11

Yes, it does indeed run at 48 mhz, I checked it with a scope on pin 5, configured as MCO.I have not the listing at hand, I'll post it as soon as I can.

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Pin toggling speed on STM32G031

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