7 segment count down timer

[lirdsecurities]

Hello,
I'm a new user of flowcode 5, I'm working on a design which has to be completed urgently. I need a design which would count from at least 20 downwards on a seven segment display.The design should have three buttons or switches, One for increment, one for decrements. The two switches should be used to increase the number on the seven segments from 0 to 20 and from 20 to 0 respectively. and the last switch should be the enter button which when pressed should make the counter count downwards from the number enter, also when it gets to 00 i want an LED to come on. I'm using 16F887A. I'm trying to prove to my organization that flowcode is the way forward, i really need this design to buttress that point. thanks for your help

[kersing]

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