DM8148 hang up issue

Devang panchal

Hi,

We are working on DM8148 based custom product. In our project we are using ezsdk_dm814x-evm_5_05_01_04, we have designed our own application in reference with the capture_encode demo.

We captured video on port VIN[0]A from sdi decoder(gs2971a), we are using attenuator in between video source and custom board. When we attenuate the signal of video source DM8148 hangs up, we are not even able to access the system using telnet or serial port.

Any idea on this issue?

Please let me know if you have any query.

Thanks,

Devang

over 10 years ago

0 Pavel Botev over 10 years ago

TI__Guru**** 170625 points

Hi Devang,

Do you have any console output when the DM814x board hangs?

Regards,
Pavel

0 Pavel Botev over 10 years ago in reply to Pavel Botev

TI__Guru**** 170625 points

Devang,

Please have a look in the below e2e threads, might be in help:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/341096.aspx

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/p/135027/485599.aspx#485599

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/341282.aspx

http://e2e.ti.com/support/embedded/linux/f/354/t/168995.aspx

http://e2e.ti.com/support/embedded/linux/f/354/t/254362.aspx

Regards,
Pavel

0 Devang panchal over 10 years ago in reply to Pavel Botev

Expert 1050 points

Hi Pavel,

Thanks for your quick reply,

No, we are not getting any output on console on system hang up, we are getting only application prints like "short read, read -5 frames" before system hang up.

Thanks,

Devang

0 Devang panchal over 10 years ago in reply to Devang panchal

Expert 1050 points

Hi Pavel,

Thanks for sharing e2e links, but we couldn't get any help from this links about this hang issue.

Our system is working fine with each resolution, but we are facing hang problem when we attenuate the video source signals.

Thanks,
Devang

0 Eason Wang over 10 years ago in reply to Devang panchal

TI__Genius 13460 points

Hi ,

I suggest you using CCS+Emulator to check if A8 core or M3 core is dead or not.

As the gs2971a is a SDI decoder, I doubt the signals output by gs2971a has something wrong so it makes the DM8148 hang. Check gs2971a datasheet , if it will stop output when weak signal detected, or the output format is not correct. This might cause the capture of DM8148 run into abnormal status. Do you have any logs when you attenuate the signal? I believe it could give us a clue.

BR,

Eason

0 Devang panchal over 10 years ago in reply to Eason Wang

Expert 1050 points

Hi Eason,

We have checked using ICE debugger and we found that A8 core is working,

Please find attached log of our application & hdvpss for your reference,

0525.Hdvpss_log.txt.

Fullscreen 2664.application_log.txt Download

root@dm814x-evm:/home/cvic# ./evm_streaming_app_a8host_debug.xv5T
All parameters parsed
================================================================
                         PARSED PARAMS
================================================================
Encoded video output file : sample.h264
Encoder's Frame-Rate : 50
Video encoder's bit-Rate : 200000
Scaler enabled: 0
Scaled width : 1280
Scaled height : 720
De-interlacer enabled : 1
No of Frames to Encode : 10000
No of B-Frames : 0
No of P-Frames : 8000
Rate-control parameter preset : 1
Rate-control algorithm : 0
Initial QP value for I-Frame : -1
Initial QP value for P-Frame : -1
Initial QP offset for B-Frame : 4
QP max value for I-Frame : 36
QP max value for P-Frame : 44
QP max value for B-Frame : 44
Allow No of Frames to skip to achive disered bit-rate : 1
Inter-coding parameter preset : 0
Horizontal Search Range for P-Frames : 0
Vertical Search Range for P-Frames : 0
Horizontal Search Range for B-Frames
Vertical Search Range for B-Frames : 0
Min Block size for P-Frames : 0
Min Block size for B-Frames : 0
Encoded audio output file : sample.aac
No of Audio Channels : 2
Audio encoder's bit-Rate : 192000
Audio sample rate : 44100
================================================================
          RUNNING LIVE-U EVM STREAMING APPLICATION
================================================================
OMX_Init completed
UIAClient is ready to send a UIA configuration command
UIAClient received UIA_CONFIGURE_ACK
UIAClient is done sending requests
UIAClient is ready to send a UIA configuration command
UIAClient received UIA_CONFIGURE_ACK
UIAClient is done sending requests
CVIC_LU200


Openeing 'sample.h264' file for writing encoded data
Openeing 'sample.aac' file for writing encoded data
 capture compoenent is created
Video detected successfully... : d
detected std : 13
 Detected video starndard : 1080P_60
Buffer Size computed: 3110400
set input port params (width = 1920, height = 1080)######## function IL_ClientSetCaptureParams line 1589 ##########
enable capture output port
got eventEnable/Disable Event
 dei compoenent is created
set input port params (width = 1920, height = 1080)
set output port params (width = 1920, height = 1080)
set output port params (width = 1920, height = 1080)
set number of channels
set input resolution
set output resolution
enable dei input port
got eventEnable/Disable Event
enable dei output port 0
got eventEnable/Disable Event
enable dei output port 1
got eventEnable/Disable Event
 encoder compoenent is created
success OMX_IndexParamVideoAvc getparams
success OMX_IndexParamVideoAvc setparams
found handle 0x12b4a8 for component OMX.TI.VPSSM3.VFDC
 got display handle
found handle 0x12f4b0 for component OMX.TI.VPSSM3.CTRL.DC
Buffer Size computed: 1555200
set input port params (width = 1920, height = 1080)setting input and output memory type to defaultenable input port
got eventEnable/Disable Event
 connect call for capture-Dei
  connect call for dei- encoder
  connect call for dei-display
  Capture outport buffers allocated
 got eventState changed to: OMX_StateIdle
 Capture is in IDLE state
 Dei input port use buffer done
  DEI outport buffers allocated
 got eventState changed to: OMX_StateIdle
 DEI is in IDLE state
 encoder input port use buffer done
  encoder outport buffers allocated
 got eventState changed to: OMX_StateIdle
 Encoder state IDLE
 got eventState changed to: OMX_StateIdle
 ctrl-dc state IDLE
  display buffers allocated
 waiting for IDLEgot eventState changed to: OMX_StateIdle
 display state IDLE
 got eventState changed to: OMX_StateExecuting
 display control state execute
 got eventState changed to: OMX_StateExecuting
 display state execute
 got eventState changed to: OMX_StateExecuting
 encoder state execute
 got eventState changed to: OMX_StateExecuting
 dei state execute
 got eventState changed to: OMX_StateExecuting
 capture state execute
 Component transitioned from Idle to Execute
Here in the CVIC_LU200 case #################
using periodsize 1025 instead of 1024
 file write thread created
  encode connect thread created
  dei connect thread created
  capture connect thread created
  display connect thread created
  executing the application now!!
Camera Monitor event
Camera Monitor event
etb called

Thanks,
Devang

0 Devang panchal over 10 years ago in reply to Devang panchal

Expert 1050 points

Hi Eason,

Yes you are right, sdi decoder(gs2971a) may be culprit but We have another custom board in which we captured video from VIN[1]A, And we have used same sdi decoder(gs2971a) in that board.

We tested same scenario on that board but we didn't observed this hang issue, capture video on port VIN[1]A while attenuate the video signals.

Is there any port specific settings in hdvpss capture driver for related this?

Thanks,
Devang

0 Eason Wang over 10 years ago in reply to Devang panchal

TI__Genius 13460 points

Would you let me know the RDK version of these 2 boards? Are they running the same SW ?

BR,

Eason

0 Devang panchal over 10 years ago in reply to Eason Wang

Expert 1050 points

Hi Eason,

Yes, we are using same ezsdk version ezsdk_dm814x-evm_5_05_01_04 in these boards.

We are not using RDK.

Thanks,
Devang

0 Devang panchal over 10 years ago in reply to Devang panchal

Expert 1050 points

Hi Eason,

Any update on this?
Please let me know if you have any query.

Thanks,
Devang

Processors

Processors forum

DM8148 hang up issue