1 /* 2 * SPDX-FileCopyrightText: 2022 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 systimer's clock source can be switch between XTAL (40MHz) and APB (80MHz). 11 * But the resolution of the systimer is configured to fix to 80MHz. 12 */ 13 systimer_ticks_to_us(uint64_t ticks)14uint64_t systimer_ticks_to_us(uint64_t ticks) 15 { 16 return ticks / 80; 17 } 18 systimer_us_to_ticks(uint64_t us)19uint64_t systimer_us_to_ticks(uint64_t us) 20 { 21 return us * 80; 22 } 23