How to change main frequency without IDF?

[traversebitree]

How to change main frequency without IDF?

Presently, my ESP32-S3 runs on 40MHz. How to increase to 240MHz?

Chip type:         esp32s3 (revision v0.2)
Crystal frequency: 40 MHz
Flash size:        32MB
Features:          WiFi, BLE
MAC address:       84:fc:e6:7e:4e:74

[jessebraham]

The crystal frequency is not the same as the CPU clock rate. You can specify the CPU clock rate during initialization of the HAL, e.g. to use the maximum clock for a given device:

let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
let peripherals = esp_hal::init(config);

[traversebitree]

Thank you very much!