ACD_map.h File Reference

Defines the interface to the mapping arrays that translate between ACD electronics channel numbering and ACD geometric channel numbering. More...

Functions
static __inline unsigned char	ACD__mapEdx (int board, int channel)
	Returns the electronics index of an ACD channel by its FREE board (or cable) number and its FREE board channel number.
static __inline unsigned char	ACD__mapEtoG (int board, int channel)
	Remaps an ACD electronics channel, defined by its FREE board (or cable) number and its FREE board channel number to its corresponding geometic (or GEM) channel number.
static __inline unsigned char	ACD__mapGdx (int list, int channel)
	Returns the geometric or GEM index for the tile specified by its GEM list identifier and channel number within the list.
static __inline unsigned char	ACD__mapGtoE (int list, int channel)
	Remaps an ACD geometric (or GEM) tile, specified by its list id (XZ , YZ, XY, RGN) and channel number, into its equivalent electronics channel index/number defined by its FREE board (or cable) number and its FREE board channel number. See ACD__mapEdx for the definition of electronics index.
Variables
const unsigned char	ACD_MapEtoG [256]
	Maps an ACD electronics channel, defined by its cable/board number and its free board channel number to the geometric numbering scheme.
const unsigned char	ACD_MapGtoE [256]

---

Detailed Description

Defines the interface to the mapping arrays that translate between ACD electronics channel numbering and ACD geometric channel numbering.

Author:

JJRussell - russell@slac.stanford.edu

   CVS $Id: ACD_map.h,v 1.1 2006/02/07 18:26:47 russell Exp $

---

Function Documentation

static __inline unsigned char ACD__mapEdx	(	int	board,
		int	channel
	)			[static]

Returns the electronics index of an ACD channel by its FREE board (or cable) number and its FREE board channel number.

Parameters:

	board	The FREE board/cable number
	channel	The FREE board channel number

This defines the electronics index for the 18 channels or each of the 12 FREE boards. The electronics index actually covers the range 0-255 in order to match the space covered by the geometric index. The electronics index can be broken into three distinct pieces

1. Assigned, electronics channels that service a tile
2. Not Assigned, electronics channels that do not service a tile
3. Non Existent, these are values >= 192 that do map to an electronics channel They exist merely for convenience so that one can conveniently map all geometric channels into electronics space and back again.

The value returned by this function can be used to index the ACD array used to map a electronics index to a geometric index, ACD_MapEtoG.

static __inline unsigned char ACD__mapEtoG	(	int	board,
		int	channel
	)			[static]

Remaps an ACD electronics channel, defined by its FREE board (or cable) number and its FREE board channel number to its corresponding geometic (or GEM) channel number.

Returns:

The equivalanet geometric (or GEM) channel number.

Parameters:

	board	The FREE board/cable number
	channel	The FREE board channel number

References ACD_MapEtoG.

Referenced by ACD_tileNameE().

static __inline unsigned char ACD__mapGdx	(	int	list,
		int	channel
	)			[static]

Returns the geometric or GEM index for the tile specified by its GEM list identifier and channel number within the list.

Parameters:

	list	The list identifier, (0-3) XZ plane = list 0, YZ plane = list 1, XY plane = list 2 RBN ribbons and not assigned channels = list 3
	channel	The channel within the list (0-31). This is in a little endian sense, where the least significant bit is channel 0.

The value returned by this function can be used to index the ACD array used to map a geometric index to a electronics index, ACD_MapGtoE.

static __inline unsigned char ACD__mapGtoE	(	int	list,
		int	channel
	)			[static]

Remaps an ACD geometric (or GEM) tile, specified by its list id (XZ , YZ, XY, RGN) and channel number, into its equivalent electronics channel index/number defined by its FREE board (or cable) number and its FREE board channel number. See ACD__mapEdx for the definition of electronics index.

Returns:

The equivalent electronics channel number

Parameters:

	list	The list identifier, (0-3) XZ plane = list 0, YZ plane = list 1, XY plane = list 2 RBN ribbons and not assigned channels = list 3
	channel	The channel within the list (0-31). This is in a little endian sense, where the least significant bit is channel 0.

---

Variable Documentation

const unsigned char ACD_MapEtoG[256]

Maps an ACD electronics channel, defined by its cable/board number and its free board channel number to the geometric numbering scheme.

Maps a geometric tile number to its corresponding ACD electronics channel, where an electronics channel is defined by its cable/board number and its free board channel number.

Referenced by ACD__mapEtoG().