Allied Vision Technologies AVT Stingray Manual de instrucciones Pagina 28
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FireWire
STINGRAY Technical Manual V2.2.0
27
Image transfer via 1394a and 1394b
Technical detail 1394a 1394b
Transmission mode Half duplex (both pairs needed)
400 Mbit/s data rate
aka: a-mode, data/strobe (D/S)
mode, legacy mode
Full duplex (one pair needed)
1 Gbit/s signaling rate, 800
Mbit/s data rate
10b/8b coding (Ethernet), aka:
b-mode (beta mode)
Devices Up to 63 devices per network
Number of cameras Up to 16 cameras per network
Number of DMAs 4 to 8 DMAs (parallel) cameras / bus
Real time capability Image has real time priority
Available bandwidth acc. IIDC
(per cycle 125 µs)
4096 bytes per cycle
~ 1000q @ 400 Mbit/s
8192 bytes per cycle
~ 2000q @ 800 Mbit/s
(@1 GHz clock rate)
For further detail read Chapter Frame rates on page 203.
Max. image bandwidth 31.25 MByte/s 62.5 MByte/s
Max. total bandwidth ~45 MByte/s ~85 MByte/s
Number of busses Multiple busses per PC
limit: PCI bus
Multiple busses per PC
limit: PCI (Express) bus
CPU load Almost none for DMA image transfer
Gaps Gaps negatively affect asynchro-
nous performance of widespread
network (round trip delay),
reducing efficiency
No gaps needed, BOSS mode for
parallel arbitration
Table 5: Technical detail comparison: 1394a and 1394b
Note
L
The bandwidth values refer to the fact:
1 MByte = 1024 kByte
- Technical Manual 1
- AVT Stingray 1
- Legal notice 2
- Contents 3
- Introduction 11
- Manual overview 14
- More information 17
- Before operation 17
- STINGRAY cameras 19
- Declarations of conformity 20
- FireWire 21
- FireWire in detail 22
- 1394b port 26
- 1394a camera 26
- 1394a port 26
- 1394b camera 26
- 1394b bandwidths 29
- Operating system support 35
- Filter and lenses 36
- Camera lenses 37
- Specifications 39
- STINGRAY F-046B/C (fiber) 41
- STINGRAY F-080B/C (fiber) 43
- STINGRAY F-145B/C (fiber) 45
- STINGRAY F-146B/C (fiber) 47
- STINGRAY F-201B/C (fiber) 49
- Spectral sensitivity 51
- Camera dimensions 57
- Tripod adapter 59
- Cross section: CS-Mount 68
- Cross section: C-Mount 69
- Stingray board level: C-Mount 73
- Camera interfaces 74
- Status LEDs 78
- Normal conditions 79
- Error conditions 79
- Stingray board level models) 90
- Pixel data 93
- Color cameras 97
- White balance 98
- Automatic white balance 101
- Auto shutter 102
- Auto gain 104
- Manual gain 107
- Horizontal mirror function 109
- Shading correction 110
- How to store shading image 111
- Output = f (Input) 117
- Vertical binning 121
- What is sub-sampling? 126
- Description of sub-sampling 126
- Description of the data path 130
- Why new timing modes? 134
- ☺ Disadvantage 136
- Packed 12-Bit Mode 139
- Deferred image transport 141
- HoldImg mode 142
- FastCapture mode 144
- Sharpness 147
- Hue and saturation 148
- Color correction 149
- Color conversion (RGB YUV) 151
- Bulk Trigger 151
- Level Trigger 151
- Serial interface 152
- Name Field Bit Description 153
- Controlling image capture 157
- Trigger delay 162
- Exposure time offset 164
- Minimum exposure time 165
- Extended shutter 165
- One-shot 167
- Exposure 169
- Multi-shot 170
- ISO_Enable / free-run 170
- Asynchronous broadcast 170
- Jitter at start of exposure 171
- Sequence mode 173
- SetupMode to 177
- Disable SetupMode 177
- SIS: Definition 182
- SIS: Scenarios 182
- Area of interest (AOI) 201
- Autofunction AOI 203
- Frame rates 204
- Frame rates Format_7 208
- Test images 217
- Test images for color cameras 218
- Configuration of the camera 219
- ADV_FNC_INQ 222
- Sample program 223
- Example FireStack API 224
- Configuration ROM 225
- 424h + 000004 x 4 = 434h 226
- 440h + 0000xx * 4 = 444h 226
- = value of directory entry 226
- 0-7 8-15 16-23 24-31 226
- Camera initialize register 228
- PIO_Control_Quadlet_Offset 241
- SIO_Control_Quadlet_Offset 241
- Strobe_Output_Quadlet_Offset 241
- Name Description 245
- Format_7 250
- Temperature register 252
- Advanced registers summary 253
- Advanced feature inquiry 258
- Camera status 260
- Maximum resolution 261
- Time base 261
- Look-up tables (LUT) 265
- [8..31] In bytes 268
- Frame information 272
- Input/output pin control 272
- Auto shutter control 274
- Auto gain control 275
- Mirror image 278
- Soft reset 279
- Maximum ISO packet size 281
- Parameter-List Update 285
- Format_7 mode mapping 286
- Secure image signature (SIS) 288
- Cycles Seconds 289
- Cycle count 290
- User profiles 293
- GPDATA_BUFFER 297
- Firmware update 298
- Appendix 299
- , 102, 104, 105, 107, 251 300
- , 115, 118 304
- , 184, 218 304
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