Hi,
What is the external XOSC frequency and default clk_sys on the Tiny 2040?
12Mhz & 133Mz respectively? Like the RPI Pico?
Thank you
I think pretty much every RP2040 board on the market (at least that you can buy that’s not part of something) uses a 12mhz crystal. That is because that’s the only input clock on XIN that works with the USB boot loader on the RP2040. The multiplier is completely controlled in software, so, it depends on what you use with the board. I’d assume things would usually default to the specified speed (133mhz, like you mentioned), but, some frameworks might differ for some reason.
In the 2350, it’s possible to run it other ways, but, without bypassing the builtin boot loader, you still have to start the chip with 12mhz to have typical operation.
Best regards,
Michael.