Problems with 7 Segment display

[jayanth.devarayanadurga]

I need to display 4 three digit numbers (integers) on 7 Segment displays. I have written a code but it is not displaying properly. Only one digit lights up. I am attaching files (mikroC + Proteus). There are two problems and I don't know what are causing those problems.

1. The SSD[][] array's 2nd, 3rd, 4th rows are being loaded with wrong SSD data.
2. Displays doesn't light up properly.

CA SSDs are used. First I used interrupt to display the data but it didn't work. So I have commented the Timer initialization and have placed the code inside while(1) loop. Now ISR doesn't work. I am only testing code inside while(1) loop.

I have debugged the code in mikroC Compiler, then in Proteus, and finally in hardware using mikroProg but the same problem in all. The array gets loaded with wrong data.

Please somebody solve the problem.

 

[FvM]

The simulation problem is caused by 1 ms "Minimum Trigger Time" of Display model.

I didn't check if the display timing is suitable for real hardware.

 

[jayanth.devarayanadurga]

What is the solution if any?

Why wrong data is being loaded to SSD[]1, SSD[2] and SSD[3]? display[] contains right data.

Edit:

Oops... Sorry, I read the data backwards. The data are correct.


Edit2: Thank you very much FvM. I edited the SSD model timing property and it now displays fine. I still have to make it work in hardware. Working simulation attached.

 

[jayanth.devarayanadurga]

It is working fine in simulation but I see something strange. In the above image, the number[] array should be showing 1, 91, 181, 271 but it is showing some other values but display[][] and SSD[][] contain right data. How? display[][] gets data loaded from number[].

 

[embpic]

sir u should switch all segment within 1/60 th second so it will look like stable that is perception of vision. and according to me u should put data on seven segment in interrupt which will periodic and handle stabality.will you post your code.

 

[jayanth.devarayanadurga]

SSD rev1.rar attached in post #3.


ULN version attached.

 

[embpic]

i don't have protues software provide in zip.