1 /* 2 * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include "esp_private/systimer.h" 8 9 /** 10 * @brief When systimer's clock source is XTAL (32MHz), it has a fixed fractional divider (2). 11 * So the resolution of the systimer is 32MHz/2 = 16MHz. 12 */ systimer_ticks_to_us(uint64_t ticks)13uint64_t systimer_ticks_to_us(uint64_t ticks) 14 { 15 return ticks / 16; 16 } 17 systimer_us_to_ticks(uint64_t us)18uint64_t systimer_us_to_ticks(uint64_t us) 19 { 20 return us * 16; 21 } 22