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GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > CTDB / V5-2-2

Constituent: sumt_bc_sib     Tag: rad750

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CO1553_util.c File Reference

Function definitions for 1553 common utility library. More...

#include "CTDB/CO1553_util.h"
#include "CO1553_util_private.h"

Include dependency graph for CO1553_util.c:

Functions
unsigned short	CO1553_utilCmdCreate (unsigned short rtAddr, unsigned short subAddr, unsigned short wordCount, int txFlag)
	Creates a 1553 command word.
unsigned short	CO1553_utilCmdGetRTAddr (unsigned short cmdWord)
	Gets the RT address value from a 1553 command word.
unsigned short	CO1553_utilCmdGetSubAddr (unsigned short cmdWord)
	Gets the subaddress value from a 1553 command word.
unsigned short	CO1553_utilCmdGetWordCount (unsigned short cmdWord)
	Gets the word count value from a 1553 command word.
int	CO1553_utilCmdGetTxFlag (unsigned short cmdWord)
	Gets the Tx flag value from a 1553 command word.
void	CO1553_utilCmdSetRTAddr (unsigned short *cmdWord, unsigned short rtAddr)
	Sets the RT address value in a 1553 command word.
void	CO1553_utilCmdSetSubAddr (unsigned short *cmdWord, unsigned short subAddr)
	Sets the sub-address value in a 1553 command word.
void	CO1553_utilCmdSetWordCount (unsigned short *cmdWord, unsigned short wordCount)
	Sets the word count value in a 1553 command word.
void	CO1553_utilCmdSetTxFlag (unsigned short *cmdWord, int txFlag)
	Sets the TX flag value in a 1553 command word.

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Detailed Description

Function definitions for 1553 common utility library.

Author:

D.L. Wood

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Function Documentation

unsigned short CO1553_utilCmdCreate (  unsigned short  rtAddr, unsigned short  subAddr, unsigned short  wordCount, int  txFlag )

Creates a 1553 command word. Constructs a 1553 bus command word out of components. This function can be used to create both data transfer and mode code commands. The subAddr value should be '0' to indicate a mode code command. If the command is a regular data transfer command, then the wordCount value indicates the number of 16-bit data words in the message. If the command is a mode code command, then the wordCount value is the mode code. Parameters: rtAddr  The remote terminal address value. subAddr  The subaddress value. wordCount  The word count or mode code value. txFlag  The transmit flag: 0 = RT receive, 1 = RT transmit. Returns: The new 1553 command word.

unsigned short CO1553_utilCmdGetRTAddr (  unsigned short  cmdWord  )

Gets the RT address value from a 1553 command word. Extracts the remote terminal address value from a 1553 bus command word. Parameters: cmdWord  The 1553 command word. Returns: The RT address value.

unsigned short CO1553_utilCmdGetSubAddr (  unsigned short  cmdWord  )

Gets the subaddress value from a 1553 command word. Extracts the subaddress value from a 1553 bus command word. Parameters: cmdWord  The 1553 command word. Returns: The subaddress address value.

int CO1553_utilCmdGetTxFlag (  unsigned short  cmdWord  )

Gets the Tx flag value from a 1553 command word. Determines if cmdWord represents a transmit or receive command. Remember that the direction is with respect to the remote terminal: transmit = RT->BC, receive = BC->RT. Parameters: cmdWord  The 1553 command word. Return values: 0  The command is a receive command. 1  The command is a transmit command.

unsigned short CO1553_utilCmdGetWordCount (  unsigned short  cmdWord  )

Gets the word count value from a 1553 command word. Extracts either the word count value or the mode code value from a 1553 bus command word. If the embedded subaddress value is '0', then cmdWord is a mode code command and the returned value is the mode code. Otherwise, the returned value is the data word count. Parameters: cmdWord  The 1553 command word. Returns: The word count or mode code value.

void CO1553_utilCmdSetRTAddr (  unsigned short *  cmdWord, unsigned short  rtAddr )

Sets the RT address value in a 1553 command word. Inserts the remote terminal address value into a 1553 bus command word. Parameters: cmdWord  The 1553 command word. rtAddr  The new RT address value to assign.

void CO1553_utilCmdSetSubAddr (  unsigned short *  cmdWord, unsigned short  subAddr )

Sets the sub-address value in a 1553 command word. Inserts the subaddress value into a 1553 bus command word. Parameters: cmdWord  The 1553 command word. subAddr  The new sub-address value to assign.

void CO1553_utilCmdSetTxFlag (  unsigned short *  cmdWord, int  txFlag )

Sets the TX flag value in a 1553 command word. Determines if cmdWord represents a transmit or receive command. Remember that the direction is with respect to the remote terminal: transmit = RT->BC, receive = BC->RT. Parameters: cmdWord  The 1553 command word. txFlag  The TX flag value: 0 = receive, 1 = transmit.

void CO1553_utilCmdSetWordCount (  unsigned short *  cmdWord, unsigned short  wordCount )

Sets the word count value in a 1553 command word. Inserts either the word count value or the mode code value into a 1553 bus command word. If the embedded subaddress value is '0', then cmdWord is a mode code command and the inserted value is the mode code. Otherwise, the inserted value is the data word count. Parameters: cmdWord  The 1553 command word. wordCount  The new word count or mode code value to assign.

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