gaom9
Full Member level 4
i/o pad
Hi, everybody
I am sorry to ask such a simple question here.
I want to know should we insert the I/O PAD before or after the DC when synthesis?
In other word, should we insert the I/O in the RTL code before importing it to DC, or should we insert the PAD in the output gate-code from DC after synthesis?
I think if we insert PAD in RTL, DC will consider the delay and other effect of the PAD in synthesis to make a better result, is that right?
Because the new version DC does not support the insert_pad command, I read some topic about this, and it tells that we just insert PAD through rewrite the code "Do not automatically insert pad use DC, do it by yourself!!!", is that right or is there any other method?
If we should insert the PAD not automatically, I think we will easily get a mistake when the NO. of PADs are too large.
Can anyone give me some advice, please?
Thank you!
Best regards!
Hi, everybody
I am sorry to ask such a simple question here.
I want to know should we insert the I/O PAD before or after the DC when synthesis?
In other word, should we insert the I/O in the RTL code before importing it to DC, or should we insert the PAD in the output gate-code from DC after synthesis?
I think if we insert PAD in RTL, DC will consider the delay and other effect of the PAD in synthesis to make a better result, is that right?
Because the new version DC does not support the insert_pad command, I read some topic about this, and it tells that we just insert PAD through rewrite the code "Do not automatically insert pad use DC, do it by yourself!!!", is that right or is there any other method?
If we should insert the PAD not automatically, I think we will easily get a mistake when the NO. of PADs are too large.
Can anyone give me some advice, please?
Thank you!
Best regards!