please help and advice : Error: Pack:1107 - Unable to combin

[Eyyub Can Odacioglu]

How can I solve this error?

ERRORack:1107 - Unable to combine the following symbols into a
single IOB
component:
BUF symbol "TXD_OBUF" (Output Signal = TXD)
PAD symbol "TXD" (Pad Signal = TXD)
Each of the following constraints specifies an illegal physical
site for a
component of type IOB:
Symbol "TXD" (LOC=R7)
Please correct the constraints accordingly.

E.Can ODACIOGLU

 

[Gabor]

On Jul 28, 7:47 am, Eyyub Can Odacioglu <ecodacio...@gmail.com> wrote:

How can I solve this error?

ERRORack:1107 - Unable to combine the following symbols into a
single IOB
   component:
        BUF symbol "TXD_OBUF" (Output Signal = TXD)
        PAD symbol "TXD" (Pad Signal = TXD)
   Each of the following constraints specifies an illegal physical
site for a
   component of type IOB:
        Symbol "TXD" (LOC=R7)
   Please correct the constraints accordingly.

E.Can ODACIOGLU

Get out the datasheet for your part. What type of pin is location
R7? If it is
not an I/O pin (i.e. input only or special purpose pin) you can't use
it as an
output pin.

Regards,
Gabor

 

pin atiyorsun ya BASYS yada diger FPGA boardlarýnýn bazýlarýnde switch ler yada button larýn tamamý I/O pini olarak gecmiyor
attýgýn pinleri degistir baska yerlere ata o zaman calýsmasý lazým