I have no idea how come it happen, I just want to open my project, it opens for some reason in top bar saying (Read Only), and I see no schematic sheets!
How come it be gone?
I'v browsed internet for that kind of problem, it was amazing to see that it is a "common" Cadence software problem for Capture schematic to be gone like that, and typical workaround is to add .dsn file by hand and it should work.
Well, I tried that, I click on Design Resources with right button, browse to .dsn file inside my project, and press Add, and nothing happens!
what has gone wrong?
This is really a nasty problem right in the middle of a project!!
I found some typical troubleshooting on this page:
But nothing worked out in my case! The project was completed, layed out, and sent to fab anyhow.
However, I cannot just open the schematics again! Can anyone at least tell me what could have gone wrong?
Or what caused this?
If this kind of crap can occur randomly I am not even sure if I want to use this Software for the next bigger project
Can you let us know the exact version of software you are running from Help - About ?
Allegro Design Entry CIS, 16.6-S007
OK - do you have a filename.dbk file in the project directory ? if so rename it to backup.dsn and then try and open that.
Ok well... that worked!
I had the following file: TEST_CHIP_RR_0.DBK
And my original DSN file was: test_chip_rr.dsn
I have renamed TEST_CHIP_RR_0.DBK to backup.dsn and opened it as design, there was a window to create new schematic, I just clicked OK, and now I see my schematic pages popped out.
So, any idea why would that happen?
Or this method you described should then cure the design again if this problem happens?