Issue while Packing more than 4096 bytes

UVM
1

Hi,I am Facing an Issue when packing the data more than 4096 bytes. Tool is not giving any Error. But if the data is more than 4096 bytes, the tool itself is appending zero’s after 4096 bytes, Irrespective of what we are sending from sequence. I think there is an limitation for packing. Can any one help on this.

2

Hi,

Use +define+UVM_MAX_STREAMBITS=70000 with the command you run.

Let me know in case of any concern.

Best Regards,
Chetan Shah
Sr. ASIC Verification Engineer

Product Engineering Services
Software | Embedded | Semiconductor
www.einfochips.com
Frost & Sullivan Company of the Year 2013-14

3

In reply to cashah85:

Hi Chetan,

I have used +define+UVM_MAX_STREAMBITS=70000 in the command line, but still it is appending zero’s after 4096 bytes.

Thanks & Regards,
Nagaraju N

4

In reply to naga4a2:

Hi Nagarjun,

Please use +define+UVM_PACKER_MAX_BYTES=70000+. It will do pack for Maximum 70000 bytes, so packer will not fill zero till (70000*8) bits.

Use +define+UVM_PACKER_MAX_BYTES=70000+ .

Let mew know how it goes. I do not see any other issue apart from this. Also You have passed wrong argument as i forgot to append + sign after the command.

Just try with above define and it should work.

Best Regards,
Chetan Shah
Sr. ASIC Verification Engineer

Product Engineering Services
Software | Embedded | Semiconductor
www.einfochips.com
Frost & Sullivan Company of the Year 2013-14

5

In reply to cashah85:

Hi Chetan,

I tried using +define+UVM_MAX_STREAMBITS=70000+ as well as +define+UVM_PACKER_MAX_BYTES=70000+ in the command line,but still it is appending zero’s after 4096 bytes.

Thanks & Regards,
Nagaraju N

6

In reply to naga4a2:

Hi,

Can you please share your code as well as run command.

Regards,
Chetan Shah

7

In reply to cashah85:

HI Chetan,

I got the issue, the issue is with the Questa release which i was using. Thanks for helping.

Thanks & Regards,
Nagaraju N

8

In reply to naga4a2:

I am trying this with version 10.6c of Questa: which version are you using which fixes this issue?

9

In reply to wpiman:

Hi,

I think i was using 10.3c, use the switch +define+UVM_MAX_STREAMBITS=70000 in the command line.It should work.

Regards,
Nagaraju N