labview ，虚拟示波器2003 改进版 for USB多功能数据采集卡-labview, improved 2003 version of the virtual oscilloscope for USB Multifunction Data Acquisition Card

Flowcode USB example complete with VB code for creating your own oscilloscope on a USB enabled PIC.

Two-Channel PC Based Oscilloscope USB More and more experiments are now ‘PC-assisted.’ Also conventional acquisition systems are very expensive. Since portable PCs are today common and a USB link is a better solutionhere we present an oscilloscope