Hello,
Apologies for the delayed response.
" Original reference design I'm using has 32 bit data lines, I made changes for 16 bit data lines in GPIF design. Attaching the firmware."
=> From this i understand that you have made the GPIF bus width as 16-bit and might not have updated the counters based on the bus width being used.
Please refer to section 3.5 GPIF II State Machine of the AN75779 app note which explains the formula for updating the LD_ADDR_COUNT and LD_DATA_COUNT actions in the GPIF II state machine as below:
"I'm not getting any output in video stream so wanted to debug if frames are coming or not. So enabled DEBUG_PRINT_FRAME_COUNT and checked serial output on putty on UART port."
=> Can you checking for the same on Tera Term application and share the screenshot of the prints.
Also, can you please try the steps mentioned in this KBA: FX3: CyU3PDebugPrint Not Printing UART Debug Message - KBA229813 ?
Regards,
Yashwant
