Measurement-computing ADLIB WIN Uživatelský manuál Strana 111
- Strana / 191
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Chapter 34 Data Offsets
25-1
25. DATA OFFSETS
Data Offsets allows the random ordering of Bipolar and Unipolar channel input types to be programmed
into the board channel RAM list.
The Pci55xx Series has 16 channels of analog inputs with programmable gain that’s multiplexed to the 12
or 16-bit A/D converter and supported by 176 elements of channel list RAM. This allows the board to
access individual channels, with different Data Offset settings.
25.1 AL_SetDataOffsetList
Prototype C\C++
ERRNUM AL_SetDataOffsetList(LHLD lhld, LPDATAOFFSETLIST
lpDataOffsetlist);
Visual Basic for Windows
Function AL_SetDataOffsetList(ByVal lhld As Long, lpDataOffsetlist As
DATAOFFSETLIST) As Long
LHLD lhld handle of the LDSD
LPCHANLIST lpchanlist address of the user DATAOFFSET list structure
The AL_SetDataOffsetList function sets the DataOffset list settings in the LDSD. The DataOffset listing
is comprised of a channel number and DataOffset type. The DataOffset list may contain
Channel/DataOffset settings that are not currently set in the channel listing itself, only those channels
selected within the channel list will be set to the appropriate DataOffset type when running. The
DataOffset ID setting in the array can be obtained from the capabilities file.
Parameter Description
lhld Identifies the instance of the logical device subsystem.
lpDataOffsetlist Specifies a 32 bit far pointer to a DATAOFFSET information structure. The
structure has been pre-defined in the ADLIB include file and is defined as
follows:
typedef struct tagDATAOFFSETLIST
{
long lType; /* 0 = Not Defined */
/* 1 = Use string list */
/* 2 = Use array of ints */
char achDataOffsetList[MAX_DATAOFFSET_STRLEN];
long lNumElements;
long alDataOffsetList[MAX_DATAOFFSET_LIST_ARRAYLEN];
}DATAOFFSET;
typedef DATAOFFSET FAR * LPDATAOFFSETLIST;
Returns:
On success ERRNUM is set to 1 and the information contained in the lpDataOffsetlist structure is
transferred to the LDSD, otherwise ERRNUM contains the last error code that occurred during the call.
- ADLIB WIN 1
- Contents 9
- 1. INTRODUCTION 11
- • One CD drive 12
- • One fixed disk drive 12
- 2. INSTALLATION 13
- 4. APPLICATION DEVELOPMENT 17
- AL_CHECK_BUFFER 18
- AL_POSTMESSAGE 18
- AL_POSTMESSAGE_PARAMS 18
- AL_CALLBACK 18
- 5. PROGRAM DEVELOPMENT 21
- 6. MEMORY BUFFER ALLOCATION 25
- 8. ERROR HANDLING 33
- 10. BOARD FUNCTIONS 41
- 17. ANALOG OUTPUT 63
- 18. DIGITAL INPUT/OUTPUT 65
- 19. TRIGGERING MODES 69
- 20. CLOCKING MODES 77
- 21. GATING MODES 85
- 22. BURST MODES 91
- 23. CHANNEL SELECTIONS 95
- Pci55xx Series: ADC0 98
- 24. INPUT CONFIGURATIONS 105
- 25. DATA OFFSETS 111
- 26. COUNTER / TIMERS 117
- AL_GetBufferDoneHandler 129
- 30. ADLIB ERROR CODES 151
- BOARD STRUCTURE 152
- LOGICAL DEVICE HANDLES 152
- LDS STRUCTURE 153
- CAPS STRUCTURE 153
- ENVIRONMENT STRUCTURE 154
- OPTIONS STRUCTURE 154
- FILE I/O 154
- INI FILE 155
- INI FILE - continued 156
- CAPABILITIES FILE 157
- DRIVER 158
- COMMON DEVICE SETTINGS 159
- ADC - continued 161
- CONFIGURATION FILE 162
- DEVICE SUBSYSTEM CHANNELS 163
- TRIGGERS 167
- TRIGGER SOURCES 168
- TRIGGER SIGNALS 168
- TRIGGER OUTPUTS 168
- CLOCKING 168
- CLOCK SIGNALS 168
- CLOCK OUTPUTS 169
- DATA CODE 169
- DATA OFFSET 169
- INTERRUPTS 170
- SIGNAL PATHS 170
- DATA TRANSFER METHOD 170
- CYCLE MODE 170
- DATA SPAN 170
- DATA RANGE 171
- INPUT CONFIG 171
- OUTPUT CONFIG 171
- BUFFER NOTIFICATION METHOD 171
- START DEVICE 171
- DATA BUFFER CONTROL ERRORS 172
- BURST MODE CONTROL ERRORS 172
- GATE LEVELS 173
- DRIVERS 174
- DRIVERS - continued 175
- DEVICE DRIVER HANDLES 177
- RUNTIME ERRORS 177
- FILTERS 177
- HANDSHAKE 177
- PORT RESOLUTION 178
- CTR MODE 178
- CTR MODE (continued) 178
- ADLIB INTERNAL ERROR CODES 180
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