GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > CCSDS / V3-4-0
Constituent: ccsds_pri     Tag: linux-gcc
#include "CCSDS/CCSDS_msg.h"
Include dependency graph for CCSDS_pkt.h:
This graph shows which files directly or indirectly include this file:
Packet Header Functions | |
unsigned int | CCSDS_pktHdrCreate (void *pkt, CCSDS_Pkt_Type type, unsigned short apid, CCSDS_Pkt_Seq_Flags seqFlags, unsigned short seqCount, unsigned short length, unsigned int secs, unsigned int fc_ss) |
Create a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrSizeof (CCSDS_Pkt_Type type) |
Get the size of a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrVerify (const void *pkt) |
Verify the prescience of a valid CCSDS packet header. | |
unsigned int | CCSDS_pktHdrSetApid (void *pkt, unsigned short apid) |
Set the application ID value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrSetLength (void *pkt, unsigned short length) |
Set the packet length value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrSetSeqCount (void *pkt, unsigned short seqCount) |
Set the sequence count value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrSetSeqFlags (void *pkt, CCSDS_Pkt_Seq_Flags seqFlags) |
Set the sequence flags value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrSetTime (void *pkt, unsigned int sec, unsigned int subSec) |
Set the timestamp value in a CCSDS telemetry packet header. | |
unsigned int | CCSDS_pktHdrSetFuncCode (void *pkt, unsigned short funcCode) |
Set the function code value in a CCSDS command packet header. | |
unsigned int | CCSDS_pktHdrGetLength (const void *pkt, unsigned short *length) |
Get the packet length value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrGetType (const void *pkt, unsigned short *type) |
Get the packet type value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrGetApid (const void *pkt, unsigned short *apid) |
Get the application ID value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrGetSeqCount (const void *pkt, unsigned short *seqCount) |
Get the packet sequence count value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrGetSeqFlags (const void *pkt, unsigned short *seqFlags) |
Get the packet grouping value in a CCSDS packet header. | |
unsigned int | CCSDS_pktHdrGetTime (const void *pkt, unsigned int *sec, unsigned int *subSec) |
Get the timestamp value in a CCSDS telemetry packet header. | |
unsigned int | CCSDS_pktHdrGetFuncCode (const void *pkt, unsigned short *funcCode) |
Get the function code value in a CCSDS command packet header. | |
Packet Checksum Functions | |
unsigned short | CCSDS_pktChksumCalc (const void *pkt, int size) |
Calculate a packet checksum value. | |
unsigned int | CCSDS_pktChksumInsert (void *pkt, int size) |
Calculate and insert a packet checksum. | |
unsigned int | CCSDS_pktChksumVerify (const void *pkt, int size) |
Verify a packet checksum value. | |
unsigned int | CCSDS_pktChksumSizeof (void) |
Get the size of a CCSDS telecommand packet checksum. | |
Typedefs | |
typedef enum _CCSDS_Pkt_Version | CCSDS_Pkt_Version |
typedef enum _CCSDS_Pkt_Type | CCSDS_Pkt_Type |
typedef enum _CCSDS_Pkt_Sec_Hdr_Flag | CCSDS_Pkt_Sec_Hdr_Flag |
typedef enum _CCSDS_Pkt_Seq_Flags | CCSDS_Pkt_Seq_Flags |
Enumerations | |
enum | _CCSDS_Pkt_Version { CCSDS_PKT_VERSION_1 = 0x0000 } |
enum | _CCSDS_Pkt_Type { CCSDS_PKT_TYPE_TELEM = 0x0000, CCSDS_PKT_TYPE_CMD = 0x1000 } |
enum | _CCSDS_Pkt_Sec_Hdr_Flag { CCSDS_PKT_SEC_HDR_FALSE = 0x0000, CCSDS_PKT_SEC_HDR_TRUE = 0x0800 } |
enum | _CCSDS_Pkt_Seq_Flags { CCSDS_PKT_SEQ_MID = 0x0000, CCSDS_PKT_SEQ_FIRST = 0x4000, CCSDS_PKT_SEQ_LAST = 0x8000, CCSDS_PKT_SEQ_NONE = 0xc000 } |
The specifications for the CCSDS Packet header formats may be found in the following documents:
Telecommand - CCSDS Telecommand Part 3 (203.0-B-1 Blue Book)
Telemetry - CCSDS Packet Telemetry (102.0-B-5 Blue Book)
Time Formats - CCSDS Time Code Formats (301.0-B-2 Blue Book)
GLAST Specific Formats - GLAST LAT - SC Interface Control Document
CCSDS Packet Library User Manual
There is a function CCSDS_pktHdrCreate(), which will create a new packet header in user memory from scratch. All header member values must be specified. For each of the header members, the function CCSDS_pktHdrGetXXX() and CCSDS_pktHdrSetXXX() will selectively retrive or alter an existing CCSDS packet header in user memory. The packet checksum functions are primarily intented for telecommand packets, and implement the checksum algoritm detailed in the SC-LAT ICD.
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The typedef for _CCSDS_Pkt_Sec_Hdr_Flag. |
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The typedef for _CCSDS_Pkt_Seq_Flags |
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The typedef for _CCSDS_Pkt_Type. |
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The typedef for _CCSDS_Pkt_Version. |
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CCSDS packet secondary header flag. The functions in this library support using either a 6 byte telemetry secondary header or a 2 byte telecommand secondary header. |
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CCSDS packet sequence flags. |
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CCSDS packet type. |
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CCSDS packet version number. Only CCSDS_PKT_VERSION_1 specifics are supported by the library functions. |