Need advice PicoMiteHDMI PS/2 PCB layout

Author	Message
Amnesie Guru Joined: 30/06/2020 Location: Germany Posts: 746	Posted: 03:51pm 02 Jul 2025         matherp said   I can't demonstrate any issue on my reference design. If I run my finger across the row of keys from q to p as fast as I can there are never any missing characters. I would suspect a electrical issue or non-compliant host wiring of the PICO when using the micro-USB as a host connector. If anyone can demonstrate an issue with my reference design and give me a protocol for testing I will look at it further but until then ..... Peter, there is no electrical issue. I am not the only one, the user "ebbandflow" discovered the same and he is solving this issue exactly like me.   Quote   non-compliant host wiring of the PICO when using the micro-USB as a host connector. I even tried direct soldering. Wire to wire. And different keyboards. Your reference design has a Hub IC integrated, maybe this solves it? Did you tried a bare pico with a normal passive (OTG) adaptor cable? Greetings Daniel