The ATF1502BE device is an In-System Programming (ISP) device. It uses the industry-standard
4-pin JTAG interface (IEEE Std. 1149.1), and is fully compliant with JTAG’s Boundary-scan
Description Language (BSDL).
这时最简单的一个程序,运行后,三个LED在闪,因为程序没有初始化串口,所以运行后超级终端没有反应-At that time the most simple of a process running, the three LED in flash, because the procedure did not initialize serial port, so after running HyperTerminal no response