What error is this?? -- Orcad Capture

Hi frnds...

What about these errors???? Here, 2v8 - 2.8 power supply net alias
1v8 - 1.8 power supply net alias
others - other net aliases.


Checking Electrical Rules
WARNING [DRC0004] Possible pin type conflict GSM 2V8 Passive Port Connected to Passive Port: VTSS, 1.GSM (1.20, 2.80)
WARNING [DRC0004] Possible pin type conflict U1,GPIO23/2V8 Bidirectional Connected to Output Port: VTSS, 1.GSM (3.90, 4.00)
WARNING [DRC0004] Possible pin type conflict U1,GPIO22/2V8 Bidirectional Connected to Output Port: VTSS, 1.GSM (3.90, 4.10)
WARNING [DRC0004] Possible pin type conflict U1,GPIO24/2V8 Bidirectional Connected to Output Port: VTSS, 1.GSM (6.50, 4.10)
WARNING [DRC0004] Possible pin type conflict GSM 1V8 Passive Port Connected to Passive Port: VTSS, 1.GSM (1.20, 2.60)


Thank u so much...
Yrs..
Prince...

Hello,

Those warnings tell you that you connected ports of different types together. Those rules are fixed in orcad Tools-->Design Rules Check --> ERC Matrix.
There is a default matrix but you can set it up as you want.

Regards,
Franck.

Just to add to that:

Output connected to an input is usually OK.
Input connected to an input is usually an error.
Input connected to a bi-directional could be an error so you get a warning - you need to decide if it is OK.
Input connected to power could be an error so you get a warning - again, you need to decide if it is OK.
Passive connected to passive could be an error so you get a warning - you need to decide if it is OK.

Keith.