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ROBINTsrl / LeptonVid

Lepton 3 SPI / GPIO streaming console application
BSD 2-Clause "Simplified" License
6 stars 2 forks source link

INVALID FRAME #1

Closed albflo closed 4 years ago

albflo commented 4 years ago

Hi,

I am currently using your implementation on a RPi 0 W (Raspbian with 4.19.118+) with a Lepton 3.5 and the original breakout board v1.4 and v2. I was able to set everything up and I am able to run your script, but I can't get any frames. By activating DEBUG mode I am able to see that the IRQ are received, but it always tells me that it received a INVALID FRAME. The error gets caused in the LeptonVid.c file at line 124 where:

ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);

returns -1. Did you or someone else experience a problem like that? Overall the wiring doesn't show any problems for /dev/spidev0.0 and the i2c bus and I use 20 cm long wires which shouldn't be too long for this.

albflo commented 4 years ago

Okay now I tested it on the v2 board and it works on that, but not on the v1.4.

weirdgyn commented 4 years ago

Try again with v1.4 and but triple check Lepton module to correctly fit inside board socket I found it to be the cause of malfunction in 90% of cases.

weirdgyn commented 4 years ago

I've gone a little further with new FLIR Lepton SDK (released together with v2.0 I/F board) IMHO this works a lot better than my approach but I never tested it on RPi0. With RPi3A+ I'm currently streaming standard video trough Raspicam module plus IR video trough Lepton and play them realtime on a self made Android app. And BTW I'm still using the old v1.4 board without any issue (but I need to press the Lepton module inside the socket to prevent abnormal behaviours). I designed also a prototype board to hold both RaspiCam module and FLIR Lepton.

albflo commented 4 years ago

Sry for the late responds, yes it helped to replug the camera again, now it works on the v1.4 too! That's great, I looked into that approach and it could be possible to cross compile the RPi0 kernel to add those FLIR modules. I will let you know if I do that and if it was successful!