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  • DroneOverLord's Avatar
    07-21-2022, 12:47 AM
    Upon further reading the 1.8v and 3.3v pin is set based on the voltage supplied to NVCC_GPIO pins. According to the Teensy 4.1 schematic those pins are wired to 3.3v. So that's not software programable. The e-fuses...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-20-2022, 05:04 PM
    Yes, USB serial is what I'm using to debug. That and system tic are the only things I could think that would be running. BUT again, I don't know if there is documentation other than the source code for how the Teensy...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-20-2022, 12:09 PM
    After reading, re-reading the ref manual I've come to the conclusion the problem has to be with the Teensy interrupts. My while(data_valid) loop needs 12 usec to execute uninterrupted, does anyone know how often the...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-20-2022, 02:35 AM
    I tried pinMode(DATA_VALID, INPUT) and digitalReadFast(DATA_VALID). You can see that in my first post. It's not acting as it should (hanging in the while(!DATA_VALID) even though the pin is toggling). I'm trying to...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-19-2022, 05:44 PM
    My bad. It defined as: #define IMXRT_GPIO7_DIRECT (*(volatile uint32_t *)0x42004000) #define DATA_VALID_PIN (IMXRT_GPIO7_DIRECT & 0b00000000000000000000100000000000) //Direct read of Data Valid pin Combing...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-19-2022, 03:48 AM
    KurtE, yea it's a bit pricey but has great image quality. It's not configurable to 4-bit transfers but could do 8bits. I have it wired for 16-bit data on GPIO6_AD_B1_00-15 so I can do a quick DR. The problem I'm having...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-18-2022, 01:06 AM
    Thanks for the reply. Yes, I've read that thread and code, that's what gave me the idea but the OV7670 is slower. I'm wondering what the fastest input speed anyone has reliable captured and is there anything more...
    13 replies | 347 view(s)
  • DroneOverLord's Avatar
    07-17-2022, 09:55 PM
    I have a project reading a 320x356 16bit image from a FLIR Boson Camera. It uses a standard CSI type interface (V Sync, H Sync, Pixel Clock and Data Valid) but for the life of me I can't seem to figure out how to get...
    13 replies | 347 view(s)
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FLIR Camera with Teensy 4.1 07-21-2022 12:47 AM
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