* arch/xtensa/src/esp32/esp32_clockconfig.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_XTENSA_SRC_ESP32_ESP32_CLOCKCONFIG_H
#define __ARCH_XTENSA_SRC_ESP32_ESP32_CLOCKCONFIG_H
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "esp_private/esp_clk.h"
* Public Function Prototypes
****************************************************************************/
* Name: esp32_update_cpu_freq
*
* Description:
* Set the real CPU ticks per us to the ets, so that ets_delay_us
* will be accurate. Call this function when CPU frequency is changed.
*
* Input Parameters:
* ticks_per_us - CPU ticks per us
*
* Returned Value:
* None
*
****************************************************************************/
void esp32_update_cpu_freq(uint32_t ticks_per_us);
* Name: esp32_set_cpu_freq
*
* Description:
* Switch to one of PLL-based frequencies.
* Current frequency can be XTAL or PLL.
*
* Input Parameters:
* cpu_freq_mhz - new CPU frequency
*
* Returned Value:
* None
*
****************************************************************************/
void esp32_set_cpu_freq(int cpu_freq_mhz);
* Name: esp32_clockconfig
*
* Description:
* Called to initialize the ESP32. This does whatever setup is needed to
* put the SoC in a usable state. This includes the initialization of
* clocking using the settings in board.h.
*
****************************************************************************/
void esp32_clockconfig(void);
#endif