Went through two rounds of phone interviews and then flew out to Texas for the on-site. Got a call a week later saying they want to hire me and they’re just trying to find me a team. Everything was good up until this point. When I heard back they said they found me a team in California. Someone from that team reached out to me and asked if I was available for a phone call. I already went through all of the interview rounds and was told they were going to give me an offer, so I assumed it was just an informational call. Next thing I know they’re interviewing me like it’s round 1 again. They threw technical questions at me that I wasn’t prepared for since no one told me it was another interview. I haven’t heard back since that call and don’t expect to. I’ve never been so frustrated with lack of communication before. To make it all the way to the offer stage and then be thrown back to square one without a word of warning was ridiculous. They essentially lied to me.

Basic digital design, clock domain crossing ,fifo for analog prepare rc circuit. keep your basic clear and dont try to make interviewer fool. Approach to problem is checked rather than answers.