Use DSP48 marco on Zedboard

1. add (*use_dsp48 ="yes"*) before module
can use before module wire and compute section but only useful in low bits design 

2.use  dsp 48 marco use like IP core can full customized by user

example : 48-bits and gate use dsp 48 slice




ref
1.Dsp48 user guide

Zedboard cross compiler install

Install file

1.Open terminal -> chmod +x xilinx-2011.09-50-arm-xilinx-linux-gnueabi.bin -> sudo -s

2.Dpkg-reconfigure dash -> choose no

3./xilinx-2011.09-50-arm-xilinx-linux-gnueabi.bin

4.Export cross=/root/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/bin

5.$cross/arm-xilinx-linux-gnueabi-gcc file1.c -o file2.o