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ComputerNerd / ov7670-no-ram-arduino-uno

Allows you to use a non fifo ov7670 on the arudino uno without external spi ram like other examples. Sends the data to UART.
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Request corresponding frame grabber for desktop side to be added into GitHub repository #2

Open jnshadow opened 9 years ago

jnshadow commented 9 years ago

Hi Mr Arduino,

Excellent efficient code for the Arduino-side -- nice use of register shifts, ports, etc. in order to reduce processing time!

To duplicate what you have done, I have an Arduino, a non-FIFO OV7670, and an understanding of the required electrical hookups, i.e., the required pull-ups to 3.3V for SIO_C and SIO_D, the voltage divider for pin 11 PWM.

I would like to use the exact frame grabber you have used on the desktop side. It appears you have kindly provided 2 different versions of frame grabber code for the desktop-side: (1) a version in the link off the Arduino forum (not to GitHub) but this code uses a 2MB baud rate but fails to compile on my MAC (only change I made is to line 279 for my UART port name and baud rate to 1MB); and (2) what appears to be an older version of the frame grabber on GitHub under sst39sf040-computerside that uses RS232.c/RS232.h but also is not aligned with the ov7670-no-ram-arduino-uno. It also does not compile.

I request that you post to this repository the version of the frame grabber you successfully used with the current ov7670-no-ram-ardunio-uno that is already in this repository -- I will then work with it and provide feedback on issues I can't solve myself. Thanks!

ComputerNerd commented 9 years ago

The code is no where near as good for the frame grabber as this code is. I wrote the frame grabber when I was a newer coder and I forgot to do a rewrite which is needed by the way. Things such as a fixed width and height controlled by

define Width_G 640

define Height_G 480

This does not make sense for a frame grabber. Instead there should be GUI control or command line arguments to specify width and height. Also I would prefer to make the protocol not fixed in code. Maybe Lua support or even a basic configuration file. The code I have currently is modified to use a slightly different protocol. You can for now use the one I posted on the Arduino form until I find time to write a better one. Or maybe someone from the community contributes a better one. That would be very good if such were to happen.

ComputerNerd commented 9 years ago

You can try this: https://github.com/ComputerNerd/simpleFrameGrabber