What limit would be that ?May not be an issue for most but be aware that neither of the Pimoroni boards will overclock above about 320MHz. The Pico2 is no issue up to 400MHz.The issue is not the PSRAM as even with that removed the limit is still there. I need 372 MHz for best 720P performance so the PGA2350 won;t work for me.
I used Pimoroni Pico Plus 2 to overclock above 600 MHz with PSRAM, in Python.
In my case it was not overheating, just got warm.
At 400 MHz, I tried in C with default settings from SDK, with GPIO "unlatch" test, generating a perfect 200 MHz signal, bitbang from CPU to SIO. It went not even warm, without any heatsink.
Code:
vreg_set_voltage(VREG_VOLTAGE_1_35); set_sys_clock_hz(400000000, 0); stdio_uart_init_full(uart1, 115200, 4, 5); printf("Start\n"); printf("System Clock Frequency is %d Hz\n", clock_get_hz(clk_sys));Statistics: Posted by gmx — Fri Sep 13, 2024 11:59 pm