200MHz Clock Support for RP2040

#1

Previously the standard clock speed for the RP2040 in Earle Philhower’s Raspberry Pi Pico/RP2040 core was 133 MHz, and the higher clock speeds from 150 MHz upwards were marked “Overclocked”.

Now the latest release of the pico-sdk released yesterday includes the change:

RP2040 has now been certified to run at a system clock of 200Mhz when using a regulator voltage of at least 1.15 volts.

For more details see: pico-sdk 2.1.1

Using 200 MHz as the standard clock frequency should improve all the uLisp RP2040 benchmarks by 50%. I’ll update the Performance specs accordingly.

#2

For some interesting discussions about this on GitHub see:

200MHz Clock Support for RP2040

#3

Earle Philhower has now released a new version of his Raspberry Pi Pico/RP2040 core (version 4.5.0) that adopts the certified 200 MHz clock as the default.

I’ve rerun the benchmarks for the RP2040 boards with the new default clock rate; see Performance. There is typically a 40% improvement in the benchmark times.