esp-idf/components/esp_hw_support/port/esp32p4/systimer.c

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/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "esp_private/systimer.h"
/**
* //TODO: IDF-7487
* @brief systimer's clock source is fixed to XTAL (40MHz), and has a fixed fractional divider (2.5).
* So the resolution of the systimer is 40MHz/2.5 = 16MHz.
*/
uint64_t systimer_ticks_to_us(uint64_t ticks)
{
return ticks / 16;
}
uint64_t systimer_us_to_ticks(uint64_t us)
{
return us * 16;
}