HC-SR04超声波测距Verilog驱动程序，包含了驱动代码和测试程序，其中驱动程序输出的是回响高电平持续的时间长度，单位us，测量精度高达0.17mm，程序改进过很多次，本次的程序应该没什么问题了。-HC-SR04 Ultrasonic Ranging Verilog drivers, including the driver code and test procedures, which the driver sustained high output is echoed the leng

fpga 超声波测试 verilog源码，测试可用，也可当参考-fpga verilog source of ultrasonic testing, the test is available, it can be used as a reference

VHDL超声波测距代码，大家看看吧，测试过能用,实体名我改成了LED-VHDL ultrasonic ranging code, you have a look, tested can be used, the entity name I changed it to LED