Hi all,
I am trying to use CY7C68013 to grab image sensor data. But I am confused about the hardware connection between CY7C68013 and CMOS sensor.
The CMOS has following interface:
- sysclk (in)
- exposure (in)
- line_valid (out)
- frame_valid (out)
- pix_clk (out)
- Data:D0-D7 (out)
- I2C
My questions are:
1. Where can I interface the line_valid, frame_valid, pix_clk signal?
I found a case from web:
- pix_clk==>IFCLK,
- line_valid==>SLWR,
- frame_valid==>GPIO.
Is this correct? If frame_valid==>GPIO, how can this GPIO control the data transfer?
2. If I want an external camera triggering architecture, the CMOS_exposure should be connnected to CY7C68013 and then use the external_trigger signal to trigger a GPIO interrupt of CY7C68013? Or just connect the external_trigger to CMOS_exposure dirctly?
3. Is it possible to use the CLKOUT of CY7C68013 to source the CMOS_sysclk? (such as 26.66MHz)
4. Which mode is more suited for this application? Slave FIFO or GPIF?
Thanks in advance.
Best,
Zheng Rong
