Hello, im debugging the default official demo ceu_ek_ra8d1_ep for EK-RA8D1.I notice that the latency of ceu_operation (image capture operation) is close to 200 ms (5 FPS) for the VGA (640x480 pixels) configuration of CMOS OV3640 Arducam. Here thought : RA8D1 Evaluation Kit - Renesas | Mouser, it is stated that the latency for a QXGA (2048x1536 pixels) resolution image capture is 15 FPS. Given that the camera first captures the image as a QXGA and then converts it as VGA, is this final latency of 5 FPS expected ?
Hello sir,
Thanks for reaching out Renesas Engineering Community.
To adjust the frame rate you should generally change the resolution of the camera to a lower one and adjust also the frequency input clock provided from the GPT timer to the camera module XCLK.
Also I would suggest to you to check the manufacturer's datasheet to see how you can adjust the frame rate and see what settings needs to be done:
https://www.arducam.com/downloads/modules/OV3640/3-OV3640%20Software%20application%20notes.pdf
Hope it helps.
Best Regards,
IK_Renesas