Types and definitions.

Device Firmware Update module type and definitions. More...

Data Structures
struct	dfu_update_packet_t
	Structure holding a bootloader packet received on the UART. More...
struct	dfu_update_status_t
	Structure holding DFU complete event. More...

Macros
#define	NRF_UICR_BOOT_START_ADDRESS   (NRF_UICR_BASE + 0x14)
#define	PACKET_SIZE   512
#define	PACKET_HEADER_SIZE   sizeof(uint32_t)
#define	CODE_REGION_1_START   0x00014000
#define	BOOTLOADER_REGION_START   0x0003C800
#define	BOOTLOADER_SETTINGS_ADDRESS   0x0003FC00
#define	DFU_REGION_TOTAL_SIZE   (BOOTLOADER_REGION_START - CODE_REGION_1_START)
#define	DFU_APP_DATA_RESERVED   0x0000
#define	DFU_IMAGE_MAX_SIZE_FULL   (DFU_REGION_TOTAL_SIZE - DFU_APP_DATA_RESERVED)
#define	DFU_IMAGE_MAX_SIZE_BANKED   (((DFU_REGION_TOTAL_SIZE)/2) - DFU_APP_DATA_RESERVED)
#define	DFU_BANK_0_REGION_START   CODE_REGION_1_START
#define	DFU_BANK_1_REGION_START   (DFU_BANK_0_REGION_START + DFU_IMAGE_MAX_SIZE_BANKED)
#define	CODE_PAGE_SIZE   1024
#define	EMPTY_FLASH_MASK   0xFFFFFFFF
#define	INVALID_PACKET   0x00
#define	INIT_PACKET   0x01
#define	START_DATA_PACKET   0x02
#define	DATA_PACKET   0x03
#define	STOP_DATA_PACKET   0x04

Typedefs
typedef void(*	dfu_complete_handler_t )(dfu_update_status_t dfu_update_status)
	Update complete handler type.

Enumerations
enum	dfu_update_status_code_t {   DFU_UPDATE_COMPLETE, DFU_BANK_0_ERASED, DFU_BANK_1_ERASED, DFU_TIMEOUT,   DFU_RESET }
	DFU status error codes. More...

Functions
	STATIC_ASSERT ((((0x0000)&(1024-1))==0x00))

Detailed Description

Device Firmware Update module type and definitions.

Macro Definition Documentation

#define BOOTLOADER_REGION_START   0x0003C800

This field should correspond to start address of the bootloader, found in UICR.RESERVED, 0x10001014, register. This value is used for sanity check, so the bootloader will fail immediately if this value differs from runtime value. The value is used to determine max application size for updating.

#define BOOTLOADER_SETTINGS_ADDRESS   0x0003FC00

The field specifies the page location of the bootloader settings address.

#define CODE_PAGE_SIZE   1024

Size of a flash codepage. Used for size of the reserved flash space in the bootloader region. Will be runtime checked against NRF_UICR->CODEPAGESIZE to ensure the region is correct.

#define CODE_REGION_1_START   0x00014000

This field should correspond to the size of Code Region 0, (which is identical to Start of Code Region 1), found in UICR.CLEN0 register. This value is used for compile safety, as the linker will fail if application expands into bootloader. Runtime, the bootloader will use the value found in UICR.CLEN0.

#define DATA_PACKET   0x03

Packet identifies for a Data Packet.

#define DFU_APP_DATA_RESERVED   0x0000

Size of Application Data that must be preserved between application updates. This value must be a multiple of page size. Page size is 0x400 (1024d) bytes, thus this value must be 0x0000, 0x0400, 0x0800, 0x0C00, 0x1000, etc.

#define DFU_BANK_0_REGION_START   CODE_REGION_1_START

Bank 0 region start.

#define DFU_BANK_1_REGION_START   (DFU_BANK_0_REGION_START + DFU_IMAGE_MAX_SIZE_BANKED)

Bank 1 region start.

#define DFU_IMAGE_MAX_SIZE_BANKED   (((DFU_REGION_TOTAL_SIZE)/2) - DFU_APP_DATA_RESERVED)

Maximum size of a application, excluding save data from the application.

#define DFU_IMAGE_MAX_SIZE_FULL   (DFU_REGION_TOTAL_SIZE - DFU_APP_DATA_RESERVED)

Maximum size of a application, excluding save data from the application.

#define DFU_REGION_TOTAL_SIZE   (BOOTLOADER_REGION_START - CODE_REGION_1_START)

Total size of the region between SD and Bootloader.

#define EMPTY_FLASH_MASK   0xFFFFFFFF

Bit mask that defines an empty address in flash.

#define INIT_PACKET   0x01

Packet identifies for initialization packet.

#define INVALID_PACKET   0x00

Invalid packet identifies.

#define NRF_UICR_BOOT_START_ADDRESS   (NRF_UICR_BASE + 0x14)

Register where the bootloader start address is stored in the UICR register.

#define PACKET_HEADER_SIZE   sizeof(uint32_t)

Size of the data packet header.

#define PACKET_SIZE   512

Size of each data packet. Also used for initial receiving of packets from transport layer.

#define START_DATA_PACKET   0x02

Packet identifies for the Data Start Packet.

#define STOP_DATA_PACKET   0x04

Packet identifies for the Data Stop Packet.

Enumeration Type Documentation

enum dfu_update_status_code_t

DFU status error codes.

Enumerator
DFU_UPDATE_COMPLETE	Status update complete.
DFU_BANK_0_ERASED	Status bank 0 erased.
DFU_BANK_1_ERASED	Status bank 1 erased.
DFU_TIMEOUT	Status timeout.
DFU_RESET	Status Reset to indicate current update procedure has been aborted and system should reset.