DLPC7540: DLPC7540+ITE6807E Test Pattern 和HDMI信号无法显示

? ?

Prodigy 10 points

Part Number: DLPC7540

我们新做的7540的板子打板回来，可以正常开机和显示logo，但是外部信号和test pattern显示不了，已排除edid的问题。

带dlp logo的splash和SFG的画面都可以显示，稍微复杂点的图片和外部信号(compser里面get sourc config出来的数据是正常的)就显示不了，这会是什么原因？

备注：我们的板子是10层板，原理图基本和开发板一致.

2 年多前

0 Sophie Chen 2 年多前

TI__Expert 4380 points

test pattern显示不了？棋盘格打不出来？切不过去吗？还是怎么？

0 ? ? 2 年多前

Prodigy 10 points

是的，棋盘格打不出来。

DLP Control program里面可以正常设定到test pattern或者external信号，读取设定状态也是对的，但就是显示不出来，一直是黑画面。

0 Jeremy_Wu 2 年多前回复 ? ?

TI__Mastermind 30820 points

核对这里配置是否和硬件链接一致。DLPC7540和DMD。

0 ? ? 2 年多前回复 Jeremy_Wu

Prodigy 10 points

硬件确认和软件配置是一致的。如果不一致，开机DLP logo和SFG显示也会不正常的。

0 ? ? 2 年多前回复 Jeremy_Wu

Prodigy 10 points

切换Test Pattern和HDMI信号的dbmsg, 供参考！

Blank screen is set to TPG 
dispfmt_CalculateDisplayArea:  X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt: minPan, pan, maxPan:0, 0, 0
         data = { 3840, 0, 3840 }
dispfmt: minScan, scan, maxScan:0, 0, 0
         data = { 2160, 0, 2160 }
dispfmt_CalculateCroppedArea:  X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt:apply_disp: activeSource = 3, dispSrc = 0

datapath: Transition to IDLING on Vx1(ITE0)
Command 0x11 execution took 215698 us (greater than allowed 50 ms)
mbSend: mbx: 2b610   msg: 0005   tID: 2b348
mbRecv: mbx: 2b610   msg: 0005    us (greatesource: SPLASH address:  0x1053045c
source: DisplaySplash size = 3840 x 2160
Blank screen is set to splash 
dispfmt_CalculateDisplayArea:  X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt: minPan, pan, maxPan:0, 0, 0
         data = { 3840, 0, 3840 }
dispfmt: minScan, scan, maxScan:0, 0, 0
         data = { 2160, 0, 2160 }
dispfmt_CalculateCroppedArea:  X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt:apply_disp: activeSource = 2, dispSrc = 2

------------------- SCANNING CONNECTOR : Vx1(ITE0) ----------------
Warning: No AFE1000/HW communcation found while attempting to place stand-by (However connector table seem to have a VGA entry)
digcontrol: Decoder 5 powerStandby complete
digcontrol: ConfigureForSearch complete

datapath: Transition to SCANNING on Vx1(ITE0)
Event: Source Change Detected on channel
mbSend: mbx: 2b610   msg: 0004   tID: 28798
mbRecv: mbx: 2b610   msg: 0004   data:0000
Event: DSM Locked on channel
mbSend: mbx: 2b610   msg: 0003   tID: 28798
mbRecv: mbx: 2b610   msg: 0003   data:0000
digcontrol: FillSourceConfig - srcConfig:
        TotalArea.PixelsPerLine  - 4400,
        TotalArea.LinesPerFrame  - 2250,
        ActiveArea.FirstPixel    - 384,
        ActiveArea.FirstLine     - 82,
        ActiveArea.PixelsPerLine - 3840,
        ActiveArea.LinesPerFrame - 2160,
        PixelClockFreqInkHz      - 297000,
        inputFrameRate           - 60,
        srcColorType                        - YUV420.
        srcConfig->IsInterlaced             - FALSE,
digcontrol: FillSourceConfig complete
Is3D = FALSE
dispfmt: DEI Disabled, Field Scaling Disabled
dispfmt: Input frame rate is 60Hz 
dispfmt: input resolution: 3840 x 2160
dispfmt_CalculateDisplayArea:  X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt: minPan, pan, maxPan:0, 0, 0
         data = { 3840, 0, 3840 }
dispfmt: minScan, scan, maxScan:0, 0, 0
         data = { 2160, 0, 2160 }
dispfmt_CalculateCroppedArea:  X, Y, Width, Height = 0, 0, 3840, 2160
dispfmt:apply_disp: activeSource = 0, dispSrc = 0
******* Try to set Color Profile 0 *******
pictcont: Active Display is 0 
pictcont: Set White Peaking: 0
pictcont: Set gamma 0
pictcont: Sharpness 0 
pictcont: cscIndex 0 
pictcont: tableIndex 4 

datapath: Transition to MONITORING on Vx1(ITE0)