Qualcomm interview questions

First I had phone interview which was primarily about what I know, one projects which I feel is challenging. It went for about 1 hour. After phone interview I had an on site interview after one month. There were 5 technical round each 45 mins, and one HR round. Technical rounds were mostly about timing, delay, setup & hold time. Since there were dealing with DDR memory controller interface with DDR memory, so they were mostly focusing on PVT variations and impact on timing.

First they carried out telephonic interview. The telephonic interview was mainly based around Real Time OS concepts, C programming. After telephonic interview got call for onsite interview.