I test regularly above 600MHz , you can see thermal images (FLIR) on my thread, it's not getting so hot as some expect.>>About overclocking: https://forums.raspberrypi.com/viewtopic.php?t=375975
did you do a test recently as your data goes to 636Mhz?? did it get hot?? I see CPU 1 boots to WFI, does your test load both cores and to what extent?? I'm guessing the on chip regulator is the hold up.
I wonder if the overclocked ADC can be timed with a varying number of digital pulses to obtain rise/fall time, that would be interesting.
Actually CORE1 is parked in a loop, spending a lot in WFE (not WFI), this is live from debugger (which wakes up WFE):
Code:
116:ee30 f710 rcp_canary_status APSR_nzcv, delay I was looking for long term stable working conditions at room temperature, not to establish the world record for a millisecond like Pimoroni guys did: https://learn.pimoroni.com/article/over ... the-pico-2.
Funny fact, they used an original Pico2, I used their Pimoroni Pico Plus 2 (but not so much that they didn't bother even to mention my tests done in August).
Also keep in mind, it's not just the cores overclocked (as many other vendors do), it's the whole internal system: switching fabric, SRAM, DMA, peripherals (with some exceptions - USB), and external GPIO - managed to get out the system clock at 600 MHz, though unusable, but recognizable on oscilloscope, you know just to be sure.
I've overclocked the ADC, as well, beyond recognition, it's in another thread.
BTW all the chips involved are still alive and kicking.
Statistics: Posted by gmx — Thu May 08, 2025 7:35 pm