This a convolutional encoder in xilinx virtex-5 ML506 board FPGA. This program use matlab for comunicating with FPGA. The convolutional encoder using rate 1/2, and 1/3.The register are 3,4,5,6 and 7.-This is a convolutional encoder in xilinx virtex-5 ML506 board FPGA. This program use matlab for comunicating with FPGA. The convolutional encoder using rate 1/2, and 1/3.The register are 3,4,5,6 and 7.