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Merge branch 'feature/support_64mbit_psram' into 'master'

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feature(psram): add support for 64MBit psram of 1.8v and 3.3v.

See merge request idf/esp-idf!2696
This commit is contained in:
Jiang Jiang Jian
2018-08-03 17:59:36 +08:00
parent 4f1e8df367 6e9c59bfc3
commit ad739ee791
4 changed files with 275 additions and 125 deletions
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29
components/esp32/include/esp_spiram.h
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@@ -18,8 +18,37 @@
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include "esp_err.h"
typedef enum {
ESP_SPIRAM_VOLT_3V3 = 0, /*!< SPI RAM voltage is 3.3v */
ESP_SPIRAM_VOLT_1V8 = 1, /*!< SPI RAM voltage is 1.8v */
ESP_SPIRAM_VOLT_INVALID, /*!< SPI RAM voltage is invalid*/
} esp_spiram_volt_t;
typedef enum {
ESP_SPIRAM_SIZE_32MBITS = 0, /*!< SPI RAM size is 32 MBits */
ESP_SPIRAM_SIZE_64MBITS = 1, /*!< SPI RAM size is 64 MBits */
ESP_SPIRAM_SIZE_INVALID, /*!< SPI RAM size is invalid */
} esp_spiram_size_t;
/**
* @brief get SPI RAM voltage
* @return
* - ESP_SPIRAM_VOLT_INVALID if SPI RAM not enabled or not valid.
* - SPI RAM voltage
*/
esp_spiram_volt_t esp_spiram_get_chip_volt();
/**
* @brief get SPI RAM size
* @return
* - ESP_SPIRAM_SIZE_INVALID if SPI RAM not enabled or not valid
* - SPI RAM size
*/
esp_spiram_size_t esp_spiram_get_chip_size();
/**
* @brief Initialize spiram interface/hardware. Normally called from cpu_start.c.
*