Management of the AT45DBX DataFlash component.
Copyright (c) 2010-2018 Microchip Technology Inc. and its subsidiaries.
#include "conf_at45dbx.h"Macros | |
| #define | AT45DBX_SECTOR_BITS 9 |
| Number of bits for addresses within logical sectors of file system. More... | |
| #define | AT45DBX_SECTOR_SIZE (1 << AT45DBX_SECTOR_BITS) |
| Logical sector size of file system in bytes. More... | |
Available AT45DBX Sizes | |
Number of address bits of available AT45DBX data flash memories.
| |
| #define | AT45DBX_500KB 19 |
| #define | AT45DBX_1MB 20 |
| #define | AT45DBX_2MB 21 |
| #define | AT45DBX_4MB 22 |
| #define | AT45DBX_8MB 23 |
Functions | |
| static bool | at45dbx_check_address (uint32_t address) |
| Check the address passed is valid. More... | |
Control Functions | |
| bool | at45dbx_init (void) |
| Initializes the data flash controller and the SPI channel by which the DF is controlled. More... | |
| bool | at45dbx_mem_check (void) |
| Performs a memory check on all DataFlash memories. More... | |
| bool | at45dbx_read_sector_open (uint32_t sector) |
| Opens a DataFlash memory in read mode at a given sector. More... | |
| bool | at45dbx_read_byte_open (uint32_t ad) |
| Opens a DataFlash memory in read mode at a given byte address. More... | |
| void | at45dbx_read_close (void) |
| Unselects the current DataFlash memory. More... | |
| bool | at45dbx_write_sector_open (uint32_t sector) |
| This function opens a DataFlash memory in write mode at a given sector. More... | |
| bool | at45dbx_write_byte_open (uint32_t ad) |
| This function opens a DataFlash memory in write mode at a given address. More... | |
| void | at45dbx_write_close (void) |
| Fills the end of the current logical sector and launches page programming. More... | |
Single-Byte Access Functions | |
| uint8_t | at45dbx_read_byte (void) |
| Performs a single byte read from DataFlash memory. More... | |
| bool | at45dbx_write_byte (uint8_t b) |
| Performs a single byte write to DataFlash memory. More... | |
Single-Sector Access Functions | |
| bool | at45dbx_read_sector_to_ram (void *ram) |
| Reads one DataFlash sector to a RAM buffer. More... | |
| bool | at45dbx_write_sector_from_ram (const void *ram) |
| Writes one DataFlash sector from a RAM buffer. More... | |
Functions to connect the DataFlash driver with the SPI Multiple-Sector Access Functions | |
| void | at45dbx_spi_init (void) |
| Initialize SPI external resource for AT45dbx DataFlash driver. More... | |
| void | at45dbx_spi_select_device (uint8_t mem_id) |
| Select one external DataFlash component. More... | |
| void | at45dbx_spi_deselect_device (uint8_t mem_id) |
| Unselect one external DataFlash component. More... | |
| void | at45dbx_spi_write_byte (uint8_t data) |
| Send one byte to the DataFlash. More... | |
| void | at45dbx_spi_read_byte (uint8_t *data) |
| Get one byte (read) from the DataFlash. More... | |
| void | at45dbx_spi_read_packet (void const *data, size_t len) |
| Receive a sequence of bytes from a DataFlash. More... | |
| void | at45dbx_spi_write_packet (void const *data, size_t len) |
| Send a sequence of bytes to a DataFlash from. More... | |
|
inlinestatic |
Check the address passed is valid.
Driver-internal function for checking the DataFlash address is in memory range configuration.
| address | The address to be checked |
Referenced by at45dbx_read_byte_open(), at45dbx_read_sector_open(), at45dbx_write_byte_open(), and at45dbx_write_sector_open().
1.8.5