esp-idf/components/esp_psram/include/esp_private/esp_psram_io.h
2022-06-14 15:44:27 +08:00

32 lines
517 B
C

/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <stddef.h>
#include <stdbool.h>
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief get psram CS IO
*
* This interface should be called after PSRAM is enabled, otherwise it will
* return an invalid value -1/0xff.
*
* @return psram CS IO or -1/0xff if psram not enabled
*/
uint8_t esp_psram_io_get_cs_io(void);
#ifdef __cplusplus
}
#endif