Problem with signing spins on Cylone GX IV

[Altera_Forum]

I got this error when signing spin on Cyclone GX IV: 

  Error: Pin C1 does not support I/O standard 1.5 V for TDm Error: Pin C2 does not support I/O standard 1.5 V for TDp   Can anyone help me solve this issue? :confused:

[Altera_Forum]

I am not sure, but aren't these transceiver pins? If yes, then You can't choose LVTTL, 3.3V, 2.5V, etc voltages for those pins...

[Altera_Forum]

I thought the voltage for transceiver pins would be 1.5-V PCML. But when I changed the I/O Standard to 1.5-V PCML, it created a differential pin, and I don't know what it is for. :confused:

[Altera_Forum]

Well that's correct, the transceiver uses differential signaling.

[Altera_Forum]

This is the error I got: 

 Error: Differential I/O output pin TDp is assigned to a non differential location C2. However, it must be assigned to a differential output location Error: Differential I/O output pin TDp(n) is assigned to a non differential location C1. However, it must be assigned to a differential output location   How to solve this issue? :)

[Altera_Forum]

When You select pin as differential, Pin Planner automatically creates positive and negative pins, so assign a signal to proper pins.

[Altera_Forum]

Can you tell me the name of the differential pins for transceiver on Cyclone GX IV? :)

[Altera_Forum]

which device exactly?

[Altera_Forum]

--- Quote Start ---  which device exactly?  --- Quote End ---    EP4CGX15BF14C8 :p

[Altera_Forum]

C1, C2 for TX1 

E1, E2 for RX1 G1, G2 for TX0 J1, J2 for RX0

[Altera_Forum]

I got this error: 

 Error: Differential I/O output pin TDp is assigned to a non differential location G2. However, it must be assigned to a differential output location Error: Differential I/O output pin TDp(n) is assigned to a non differential location G1. However, it must be assigned to a differential output location   :p

[Altera_Forum]

Add a screenshot of pin planner

[Altera_Forum]

http://img545.imageshack.us/img545/7495/pinplanner.png

[Altera_Forum]

Why did You assign TDp to negative pair node?

[Altera_Forum]

--- Quote Start ---  Why did You assign TDp to negative pair node?  --- Quote End ---    Can you tell me how to assign TDp to positive pair node? I'm just a newbie. :D

[Altera_Forum]

Delete both assignments and assign positive to positive, so negative will be assigned automatically.

[Altera_Forum]

I can't imagine how to do. I added all screenshots of the steps I did in Pin Planner. Please tell me which step I did wrong. 

 Step 1 http://img851.imageshack.us/img851/2745/pinplanner1.png   Step 2 http://img830.imageshack.us/img830/3834/pinplanner2.png   Step 3 http://img545.imageshack.us/img545/7495/pinplanner.png

[Altera_Forum]

Can anyone help me solve this issue? I can attach the source file if you want. :(