用的c8051f321芯片，他带usb控制器，用来通过usb口把数据传给电脑，信号来源是容栅传感器，里面有最大数保存、最小数保存、快速跟踪、清0等功能。程序的控制用汇编写的，其他部分用c言语写的-C8051f321 used in chips, he brought usb controller, I used the data through the usb to the computer, the signal from the capacitive sensors, which have