Esp32/Components/spi_flash/include/esp_spi_flash.h File Reference
#include <esp32/rom/spi_flash.h>
#include <esp_app_format.h>
#include <user_config.h>
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Classes | |
struct | SPIFlashInfo |
SPI Flash memory information block. Copied from bootloader header. See esp_image_header_t . More... | |
Macros | |
#define | SPI_FLASH_RESULT_OK 0 |
#define | INTERNAL_FLASH_WRITE_UNIT_SIZE 4 |
Flash memory access must be aligned and in multiples of 4-byte words. More... | |
#define | INTERNAL_FLASH_READ_UNIT_SIZE 4 |
#define | FLASH_TOTAL_SEC_COUNT (flashmem_get_size_sectors()) |
#define | SYS_PARAM_SEC_COUNT 4 |
Number of flash sectors reserved for system parameters at start. More... | |
#define | FLASH_WORK_SEC_COUNT (FLASH_TOTAL_SEC_COUNT - SYS_PARAM_SEC_COUNT) |
#define | INTERNAL_FLASH_SECTOR_SIZE SPI_FLASH_SEC_SIZE |
#define | INTERNAL_FLASH_SIZE ((FLASH_WORK_SEC_COUNT)*INTERNAL_FLASH_SECTOR_SIZE) |
Enumerations | |
enum | SPIFlashMode { MODE_QIO = 0, MODE_QOUT = 1, MODE_DIO = 2, MODE_DOUT = 15, MODE_SLOW_READ = 0xFE, MODE_FAST_READ = 0xFF, MODE_QIO = ESP_IMAGE_SPI_MODE_QIO, MODE_QOUT = ESP_IMAGE_SPI_MODE_QOUT, MODE_DIO = ESP_IMAGE_SPI_MODE_DIO, MODE_DOUT = ESP_IMAGE_SPI_MODE_DOUT, MODE_FAST_READ = ESP_IMAGE_SPI_MODE_FAST_READ, MODE_SLOW_READ = ESP_IMAGE_SPI_MODE_SLOW_READ } |
enum | SPIFlashSpeed { SPEED_40MHZ = 0, SPEED_26MHZ = 1, SPEED_20MHZ = 2, SPEED_80MHZ = 15, SPEED_40MHZ = ESP_IMAGE_SPI_SPEED_40M, SPEED_26MHZ = ESP_IMAGE_SPI_SPEED_26M, SPEED_20MHZ = ESP_IMAGE_SPI_SPEED_20M, SPEED_80MHZ = ESP_IMAGE_SPI_SPEED_80M } |
enum | SPIFlashSize { SIZE_4MBIT = 0, SIZE_2MBIT = 1, SIZE_8MBIT = 2, SIZE_16MBIT = 3, SIZE_32MBIT = 4, SIZE_1MBIT = 0xFF, SIZE_1MBIT = ESP_IMAGE_FLASH_SIZE_1MB, SIZE_2MBIT = ESP_IMAGE_FLASH_SIZE_2MB, SIZE_4MBIT = ESP_IMAGE_FLASH_SIZE_4MB, SIZE_8MBIT = ESP_IMAGE_FLASH_SIZE_8MB, SIZE_16MBIT = ESP_IMAGE_FLASH_SIZE_16MB, SIZE_32MBIT = 0xFF } |
Functions | |
uint32_t | flashmem_get_address (const void *memptr) |
Obtain the flash memory address for a memory pointer. More... | |
uint32_t | flashmem_write (const void *from, uint32_t toaddr, uint32_t size) |
Write a block of data to flash. More... | |
uint32_t | flashmem_read (void *to, uint32_t fromaddr, uint32_t size) |
Read a block of data from flash. More... | |
bool | flashmem_erase_sector (uint32_t sector_id) |
Erase a single flash sector. More... | |
SPIFlashInfo | flashmem_get_info () |
Get flash memory information block. More... | |
uint8_t | flashmem_get_size_type () |
Returns a number indicating the size of flash memory chip. More... | |
uint32_t | flashmem_get_size_bytes () |
get the total flash memory size More... | |
uint16_t | flashmem_get_size_sectors () |
Get the total number of flash sectors. More... | |
uint32_t | flashmem_find_sector (uint32_t address, uint32_t *pstart, uint32_t *pend) |
Helper function: find the flash sector in which an address resides. More... | |
uint32_t | flashmem_get_sector_of_address (uint32_t addr) |
Get sector number containing the given address. More... | |
uint32_t | spi_flash_get_id (void) |
Function Documentation
◆ spi_flash_get_id()
uint32_t spi_flash_get_id | ( | void | ) |