Hi i am Kumar
I encountered an issue with the RZ/A1H (R7S721000VCFP) processor. When I do not connect GND to pin 209 (VIN2A), the processor gets damaged at video pin 208 (VIN1A) and other functionality working fine.
This is my circuit diagram.
I am using PAL format video quality ok with PAL camera.
And I checked the video (PAL) output of the Raspberry Pi 4 with our RZ/A1H. The video quality was normal, but I noticed some jitter lines. How can I solve this issue?
But this same Raspberry Pi 4 video signal works fine on other devices like TVs and other display systems.
Hi,I am not really sure if I fully understand your issue.What do you mean by the processor gets damaged?For the jitter lines could be many reasons: bad capacitor, interlaced video mode...Kind Regards.
PT_Renesas said:For the jitter lines could be many reasons: bad capacitor, interlaced video mode...
Hi,
1. Which capacitor bad? 2. I will check interlaced mode. 3. what is the video frame rate for the processor?
Hi PT1. I changed the capacitor, but the issue remains.
2. I took both signals with an oscilloscope—one working and one non-working (jitter line). I compared both video signals and found a timing mismatch of 0.21µs. Could this be causing the issue?
Non-working (jitter line) waveform:Working Waveform:
RegardsKumar
Hi PT
I used interlaced mode.