用AVR端口模拟SPI和AD9517的通信,AVR port with SPI and AD9517 analog communication

压缩包中为AD9517的C语言单片机控制源代码，已在实际电路调试成功，使用AD9517内部VCO，LVDS和LVPECL输出模式可选。 -Compressed package for the AD9517 single-chip control of the C language source code, has been successful in the actual circuit debugging, use the AD9517 internal VCO, LVDS and LVP

AD9517的配置程序，寄存器参数根据需要自己改，双差分输出，verilog-AD9517 configuration program, register yourself to change the parameters as needed, dual differential output, verilog

clk测试程序时钟输入连接ad9517跟adf4351，输出看的clk(Clk test program clock input connection ad9517 with adf4351, the output look clk)