I put a clistctrl on the form, and I hope that every time the mouse clicks on an item, a certain position of the form will be redrawn. What I do is: I customize a message in CNewDlg.h: #define WM_MYMS...
The basic RFID system consists of RFID tags , RFID readers , and application support software. The figure below shows a basic RFID system, which shows three different forms of RFID tags . RFID tags co...
In the current rapidly developing third-generation wireless communication systems, highly complex modulation systems are required to achieve higher transmission rates, which brings new challenges to e...
My program has an undefined instruction exception. In r14 under svc and irq, I checked the address of lr, which belongs to two functions that I have been calling in C language. These two functions can...
When programming a microcontroller, doesn't a programmer need one? Why can I program directly using the serial port to ISP interface on the development board I bought?...