package ecad // import "github.com/anviod/EtherCAT/ecad"

Package ecad defines EtherCAT Slave Controller (ESC) register addresses.
包 ecad 定义了 EtherCAT 从站控制器（ESC）寄存器地址。

All constants map to the physical register layout specified in ETG.1000
(EtherCAT Hardware Data Link Layer).

所有常量映射到 ETG.1000（EtherCAT 硬件数据链路层）规范的物理寄存器布局。

Register map overview:

    0x0000-0x000F: ESC Information
    0x0010-0x001F: Station Address
    0x0040-0x004F: ESC Reset
    0x0100-0x010F: Data Link Layer
    0x0120-0x013F: Application Layer
    0x0140-0x014F: PDI Control
    0x0200-0x02FF: Interrupt / Event
    0x0500-0x050F: EEPROM Interface
    0x0600-0x07FF: FMMU
    0x0800-0x0FFF: Sync Manager

CONSTANTS

const (
	Type                 = 0x0000 // ESC type identifier
	Revision             = 0x0001 // ESC revision number
	Build                = 0x0002 // ESC build number
	FMMUsSupported       = 0x0004 // Number of supported FMMUs
	RAMSize              = 0x0006 // RAM size in KB
	PortDescriptor       = 0x0007 // Physical port descriptor
	ESCFeaturesSupported = 0x0008 // ESC feature flags
)
const (
	ConfiguredStationAddress = 0x0010 // Configured station address (16-bit)
	ConfiguredStationAlias   = 0x0012 // Configured station alias (16-bit)
)
const (
	DLControl = 0x0100 // Data Link Control register
	DLStatus  = 0x0110 // Data Link Status register
)
const (
	ALControl    = 0x0120 // Application Layer Control register
	ALStatus     = 0x0130 // Application Layer Status register
	ALStatusCode = 0x0134 // Application Layer Status Code register
)
const (
	ESIEEPROMInterface   = 0x0500 // EEPROM Interface (alias for EEPROMConfiguration)
	EEPROMConfiguration  = 0x0500 // EEPROM Configuration register
	EEPROMPDIAccessState = 0x0501 // EEPROM PDI Access State register
	EEPROMControlStatus  = 0x0502 // EEPROM Control/Status register
	EEPROMAddress        = 0x0504 // EEPROM Address register (32-bit)
	EEPROMData           = 0x0508 // EEPROM Data register (64-bit)
)
const (
	SyncManagerChannelLen          = 0x08 // Channel stride
	SyncManagerPhysStartAddrOffset = 0x00 // Physical start address offset
	SyncManagerLengthOffset        = 0x02 // Length offset
	SyncManagerControlOffset       = 0x04 // Control register offset
	SyncManagerStatusOffset        = 0x05 // Status register offset
	SyncManagerActivateOffset      = 0x06 // Activate register offset
	SyncManagerPDIControlOffset    = 0x07 // PDI Control offset
)
    Sync Manager channel layout (each channel is 8 bytes):

const ECATEventMask = 0x0200 // EtherCAT event mask register
const ESCResetECAT = 0x0040 // ESC reset register for EtherCAT unit
const FMMUBase = 0x0600 // Base address for FMMU configuration
const PDIControl = 0x0140 // Process Data Interface Control register
const (
	SyncMangerBase = 0x0800 // Base address for Sync Manager configuration
)