FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
6359 Discussions

about DSPB_Type

Altera_Forum
Honored Contributor II
‎09-16-2007 04:00 AM
1,520 Views

Yesterday ,I designed a 14 filiter using dspbuilder 7.1 with the block of ALTBus,shift taps and Multiplify Adder . I apply two channel sine wave as source , but when I simulate it , the process is failed because the source data's(coming form the sum of the two sine wave) type is double ,conflicting with the ALTBus's tye (I defined it is "signed integer"), what can I do for it ? and how to design the sine wave to signed integer? 

Thks
0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎09-17-2007 09:13 AM
553 Views

You need to use Input and Output blocks to mark the borders of the synthesizable system. The AltBus block now is only used to convert types inside the system.

0 Kudos
Copy link
Reply

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.