3BABY
Member level 5
- Joined
- Jan 14, 2011
- Messages
- 91
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,286
- Location
- New Zealand
- Activity points
- 2,252
Hi All
would anyone be able to help me out, or point me in the right direction of some documentation for this, i have searched the web and read through xilinx documents but cant seem to find an answer:
i have a project for targer XC9500 series CPLD, has top level shematic and a pin.ucf file. in order not to clutter up my only schematic i opened/created a new .sch file (test1.sch) and built some logic (PISO shift register) in it, named the I/O lines, i have created a symbol (called it "PISO") and attached it to this schematic. everything ok. i have created an library and included this symbol. Now, i have added this symbol "PISO" to my schematic in my project and wired it up:
![1.gif 1.gif](https://www.edaboard.com/data/attachments/54/54402-f97241552e0708e9b398ab578eec3903.jpg)
now my Design hierarchy is looking like the below figure:
![2.gif 2.gif](https://www.edaboard.com/data/attachments/54/54403-a6fbc21e8bb444d1e4ec6aa3694224c8.jpg)
the "orange question mark" means what exactly?
when i go to synthesize the top model i get the error:
![3.gif 3.gif](https://www.edaboard.com/data/attachments/54/54404-452c08585f4cb9fa574987071b335bef.jpg)
im obviously missing some step between creating my symbol "PISO" and it being usefull to another project file. could anyone help me out on this? thanks in advance!![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
would anyone be able to help me out, or point me in the right direction of some documentation for this, i have searched the web and read through xilinx documents but cant seem to find an answer:
i have a project for targer XC9500 series CPLD, has top level shematic and a pin.ucf file. in order not to clutter up my only schematic i opened/created a new .sch file (test1.sch) and built some logic (PISO shift register) in it, named the I/O lines, i have created a symbol (called it "PISO") and attached it to this schematic. everything ok. i have created an library and included this symbol. Now, i have added this symbol "PISO" to my schematic in my project and wired it up:
![1.gif 1.gif](https://www.edaboard.com/data/attachments/54/54402-f97241552e0708e9b398ab578eec3903.jpg)
now my Design hierarchy is looking like the below figure:
![2.gif 2.gif](https://www.edaboard.com/data/attachments/54/54403-a6fbc21e8bb444d1e4ec6aa3694224c8.jpg)
the "orange question mark" means what exactly?
when i go to synthesize the top model i get the error:
![3.gif 3.gif](https://www.edaboard.com/data/attachments/54/54404-452c08585f4cb9fa574987071b335bef.jpg)
im obviously missing some step between creating my symbol "PISO" and it being usefull to another project file. could anyone help me out on this? thanks in advance!