DLPU082C August   2021  – March 2024 DLPC7540

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Scope
  5. 2 References
  6. 3 Acronyms
  7. 4 System Boot
    1. 4.1 Data In flash
    2. 4.2 Bootloader Application
    3. 4.3 Main Application
    4. 4.4 Commands Supported by Bootloader and Main Applications
    5. 4.5 Debug Terminal
    6. 4.6 HOST_IRQ/SYSTEM_BUSY
    7. 4.7 Heartbeat
    8. 4.8 Low-Level Fault
  8. 5 System Status
  9. 6 Version
  10. 7 Power Modes
  11. 8 Display Modes
  12. 9 Source Detection and Configuration
  13. 10Internal Sources
    1. 10.1 Test Patterns (TPG)
    2. 10.2 Solid Field (SFG) Color
    3. 10.3 Curtain
  14. 11Display Formatting
  15. 12Image Processing
  16. 13Warping
    1. 13.1 Control Point Table
    2. 13.2 Manual Warp Table
    3. 13.3 Table Constraints
    4. 13.4 Example Warp Table
    5. 13.5 Manual Warping Commands
      1. 13.5.1 CMD_SetManualWarpControlPoints [Command ID: 0x35, Destination: 4]
      2. 13.5.2 CMD_GetManualWarpControlPoints [Command ID: 0x35, Destination: 4]
      3. 13.5.3 CMD_WriteManualWarpTable [Opcode: 0x34, Destination: 4]
      4. 13.5.4 CMD_ReadManualWarpTable [Opcode: 0x34, Destination: 4]
      5. 13.5.5 CMD_ConfigureSmoothWarp [Command ID: 0x38, Destination: 4]
      6. 13.5.6 CMD_ApplyManualWarping [Command ID: 0x36, Destination: 4]
    6. 13.6 Optical (Lens) Distortion Correction
  17. 14Introduction to Blending
    1. 14.1  Blend Map Control Points
    2. 14.2  Blend Map Gain Values
    3. 14.3  Blend Map Offset Value
    4. 14.4  Constraints
    5. 14.5  Manual Blending Commands
      1. 14.5.1 CMD_EnableEdgeBlending [Command ID: 0x2F]
      2. 14.5.2 CMD_SetBlendMapControlPoints [Opcode: 0x2E]
      3. 14.5.3 CMD_ GetBlendMapControlPoints [Command ID: 0x2E]
      4. 14.5.4 CMD_SetBlendMapGainValues [Command ID: 0x2B]
      5. 14.5.5 CMD_ GetBlendMapGainValues [Command ID: 0x2B]
      6. 14.5.6 CMD_ SetBlendMapOffsetValues [Command ID: 0x2D]
      7. 14.5.7 CMD_ GetBlendMapOffsetValues [Command ID: 0x2D]
      8. 14.5.8 CMD_ApplyBlendMap [Command ID: 0x2C]
    6. 14.6  Manual Blending Application Commands
      1. 14.6.1 CMD_SetEdgeBlendingSystemParams [Command ID: 0x3D]
      2. 14.6.2 CMD_GetEdgeBlendingSystemParams [Command ID: 0x3D]
      3. 14.6.3 CMD_SetEdgeBlendingConfiguration [Command ID: 0x3E]
      4. 14.6.4 CMD_GetEdgeBlendingConfiguration [Command ID: 0x3E]
    7. 14.7  Cropping of Input Image for Blending Setup
    8. 14.8  Storing Edge Blend Configuration in EEPROM
    9. 14.9  Storing in EEPROM or Secondary Flash
    10. 14.10 Manual Blending GUI in Control Program
  18. 15Illumination Control
  19. 16Peripherals
    1. 16.1 GPIO
    2. 16.2 PWM
  20. 17Interface Protocol
    1. 17.1 Supported Interfaces
    2. 17.2 I2C Target
    3. 17.3 USB
  21. 18Command Protocol
    1. 18.1 Command Packet
    2. 18.2 Response Packet
    3. 18.3 Destination Details
    4. 18.4 Error Handling and Recovery
    5. 18.5 System Busy - I2C scenarios
      1. 18.5.1 GPIO Implementation
      2. 18.5.2 Short Status Response
    6. 18.6 Support for Variable Data Size
  22. 19Auto-Initialization Batch File
  23. 20Command Descriptions
  24. 21System Commands
    1. 21.1  3D
    2. 21.2  Administrative
    3. 21.3  Autolock
    4. 21.4  Bootloader
    5. 21.5  Calibration
    6. 21.6  Blending
    7. 21.7  Debug Internal
    8. 21.8  Debug
    9. 21.9  General Operation
    10. 21.10 Illumination
    11. 21.11 Image Processing
    12. 21.12 Manual WPC
    13. 21.13 Peripherals
    14. 21.14 Vision
    15. 21.15 Warping
  25.   Revision History

13.4 Example Warp Table

Figure 13-4 shows a butterfly like warping use case with 4 × 3 control points on a 3840 × 2160 product resolution. For simplicity, this example uses symmetric warping and integer positions. Customers can define an asymmetric map and real number positions in fixed point 13.3 format.

GUID-20230112-SS0I-KDZK-PZJ8-H6CVDXHJQGJJ-low.jpg Figure 13-4 Example of Warping

Table Dimension

Number of Rows : 3

Number of Columns : 4

Control Points / Source Points

Number of Horizontal Control Points : 4 (= number of columns)

Number of Vertical Control Points : 3 (= number of rows)

The following map is generated:

[0.0, 0.0] [1279.4, 0.0] [2559.6, 0.0] [3839.0, 0.0]

[0.0, 1079.0] [1279.4, 1079.0] [2559.6, 1079.0] [3839.0, 1079.0]

[0.0, 2159.0] [1279.4, 2159.0] [2559.6, 2159.0] [3839.0, 2159.0]

Following equation calculates the control points for a given DMD resolution and warp map dimension:

Xi = (DMDWidth - 1) / (NumColumns - 1) × ColumnNumber

Yi = (DMDHeight - 1) / NumRows - 1) × RowNumber

Warping Map Points

[ 0.0, 0.0] [1280.0, 200.0] [2560.0, 200.0] [3839.0, 0.0]

[200.0, 1080.0] [1280.0, 1080.0] [2560.0, 1080.0] [3640.0, 1080.0]

[ 0.0, 2159.0] [1280.0, 1960.0] [2560.0, 1960.0] [3839.0, 2159.0]

Table 13-1 Manual Warp Table
Table Index Floating Point Format 13.3 Fixed Point Format
0 0.0 0
1 0.0 0
2 1280.0 10240
3 200.0 1600
4 2560.0 20480
5 200.0 1600
6 3839.0 30712
7 0.0 0
8 200.0 1600
9 1080.0 8640
10 1280.0 10240
11 1080.0 8649
12 2560.0 20480
13 1080.0 8649
14 3640.0 29120
15 1080.0 8649
16 0.0 0
17 2159.0 17272
18 1280.0 10240
19 1960.0 15680
20 2560.0 20480
21 1960.0 15680
22 3839.0 30712
23 2159.0 17272