I bought an AT89S52 learning board with two interfaces. One is a USB interface. After connecting it, the power button can control the microcontroller. But the other one is an ISP parallel port to USB
The device is DT-X7, a barcode device produced by Casio, and the system is WinCE5.0. The development is VS2005 C#. The problem now is that no matter on the real machine or the simulator, when the curs
[i=s]This post was last edited by dontium on 2015-1-23 11:32[/i] WEBENCH is a filter launched by Texas Instruments (TI) that can complete the design of active filters in minutes. Now let the engineers
I am a student at school. I made a double-layer board, about 10*10 in size, which requires 130 components, mainly resistors, capacitors, inductors, op amps, diodes, transistors, etc. It is not mass pr