myzhar / lepton3_bbb Goto Github PK

It seems there is some kind of regarding relocatable code and the LEPTON_SDK.a library.

[100%] Linking CXX executable opencv_demo
/usr/bin/ld: ../grabber_lib/Lepton_SDK/lib/LEPTON_SDK.a(bbb_I2C.o): relocation R_ARM_THM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC
../grabber_lib/Lepton_SDK/lib/LEPTON_SDK.a: error adding symbols: Bad value
collect2: error: ld returned 1 exit status
opencv_demo/CMakeFiles/opencv_demo.dir/build.make:96: recipe for target 'opencv_demo/opencv_demo' failed

Change default 14 bit RAW mode to RGB888 to get coloured images

1. Disable Radiometry
2. Enable AGC
3. Change 14bit to RGB888
4. Select LUT

Documentation:

• FLIR LEPTON® Software IDD pg 85, 93, 72-73
• FLIR LEPTON® 3 Long Wave Infrared (LWIR) Datasheet pg 30-47

Useful commands:

LEP_GetOemVideoOutputFormat ()
LEP_SetOemVideoOutputFormat ()
LEP_GetAgcEnableState()
LEP_SetAgcEnableState()
LEP_GetVidPcolorLut()
LEP_SetVidPcolorLut()

Hi, I try to implement your project on my new BBBlack.

But, I have question about which OS you use debian or ubuntu?, and how to install OpenCV currently?

Use the command LEP_ SetSysTelemetryEnableState() from Lepton SDK to enable telemetry and to check the status of the sensor.

Documentation:

• FLIR LEPTON® Software IDD pg 47-48
• FLIR LEPTON® 3 Long Wave Infrared (LWIR) Datasheet pg 23-25, 30-47

Useful commands:

LEP_ GetSysTelemetryEnableState()
LEP_ SetSysTelemetryEnableState()
LEP_ GetSysTelemetryLocation()
LEP_ SetSysTelemetryLocation()

Import Lepton SDK to be compiled together with the library

Hi Walter,

Thank you for sharing your awesome code.
After compiling the code nd running "opencv_demo 1" I receive these results and I have no idea what causes this issue.
OpenCV demo for Lepton3 on BeagleBoard Blue
Debug level: 1

• Radiometry disabled
• AGC enabled
• RGB enabled
• Gain mode: High
  Grabber thread started ...
  Opening SPI device: /dev/spidev1.0
  SPI mode: 3
  SPI bits per word: 8
  SPI max speed: 16000000
  VoSPI segment acquire freq: 166667 hz
  Wrong Packet ID for TTT in segment
  .
  .
  .

and the result of running "opencv_demo 2" is:
OpenCV demo for Lepton3 on BeagleBoard Blue
Debug level: 2

• Radiometry disabled
• AGC enabled
• RGB enabled
• Gain mode: High
  Grabber thread started ...
  Opening SPI device: /dev/spidev1.0
  SPI mode: 3
  SPI bits per word: 8
  SPI max speed: 16000000
  SPI fd: 14

Thread period: 6 usec - VoSPI Available: -2147483648 usec
VoSPI segment acquire freq: 166667 hz
{0} Wrong Packet ID for TTT in segment
VoSPI segment read time 3502 usec
VoSPI segment check time 2 usec

Thread period: 6928 usec - VoSPI Available: -2147483648 usec
VoSPI segment acquire freq: 144.342 hz
{0} Wrong Packet ID for TTT in segment
VoSPI segment read time 15155 usec
VoSPI segment check time 2 usec
…

I really appreciate if you can help to find out what causes the problem.

Thanks