Hello All... One urgent help is required... I have done my diploma in electrical engineering follow

Hello All... One urgent help is required... I have done my diploma in electrical engineering followed by three years of bachelor degree in the same field...now I am looking for MS in Embedded systems...and many webpages of the Universities are saying that one year masters is required for people having three years of bachelor...I don't have any one year of masters and I am planning for Fall 2020...is it going to create any trouble?? Please let me know...any help will be appreciated...it's urgent... TIA