这个代码时用全志FPGA开发板写的，语音用的是veiloge,功能是用FPGA实现VGA接口硬件连接的实验，FPGA芯片为ALTER EPC4-When this code is used to write full blog FPGA development board, the voice used is veiloge, function experiments using FPGA VGA interface hardware connections, FPGA chip ALTER E