Use the Roadrunner ISC Image Sensor Controller port
This page describes how to configure and use of the ISC port on Roadrunner SOM.
The basic knowledge used to write this article comes from this page:
Hardware used
Omnivision OV7670 camera available on Amazon
Wirings
| Signal | SAMA5D2 pin | Camera pin
|-----------|-------------|------------
| ISC_D0 | PB26 | GND
| ISC_D1 | PB27 | GND
| ISC_D2 | PB28 | GND
| ISC_D3 | PB29 | GND
| ISC_D4 | PB30 | D0
| ISC_D5 | PB31 | D1
| ISC_D6 | PC0 | D2
| ISC_D7 | PC1 | D3
| ISC_D8 | PC2 | D4
| ISC_D9 | PC3 | D5
| ISC_D10 | PB24 | D6
| ISC_D11 | PB25 | D7
| | |
| ISC_VSYNC | PC5 | VSYNC OUT Active High Frame Valid; indicates active frame
| ISC_HSYNC | PC6 | HREF OUT Active High: Line/Data Valid; indicates active pixels
| ISC_MCK | PC7 | XCLK INP Master Clock into Sensor
| ISC_PCK | PC4 | PCLK OUT Pixel Clock output from sensor
| | |
| TWCK1 | PD5 | SCL I2C Clock
| TWD1 | PD4 | SDA I2C Data
| | |
| PB11 | PB11 | RST INP Sensor reset signal, active low
| PB12 | PB12 | PWON INP Power down input, active high
| | |
| 3V | | VCC
| GND | | GND
Device tree
This is the device tree used:
Read from user space
ffmpeg -y -r 25 -t 5 -i /dev/video0 out.mp4
