【摘要】 JTA G广泛应用于 CPU,F PGA,DSP中 ,是目前对芯片调试的主要手段 ,本文首先介绍了 JTAG及其状态机实现的基本原理 ,接着给出了利用 PC并口进行 JTA G目标机联接的原理图 ,最后给出了利用 JTAG进行在线编程的软件流程及其使用说明 ,并做了应用举例。利用本软件可以大大方便系统的调试 ,缩短开发时间 ,具有较高的实用价值更多还原

【Abstract】 JTAG is been extensive to apply in CPU, FPGA, DSP , which is the main means for adjusting tryings, this paper introduced the basic principle that JTAG and its appearance machines realizes first, giving to make use of immediately after the PC combines a people’s proceeding the JTAG target machine connect of principle diagram, finally give the JTAG of making use of software process and its usages proceed the online plait distance explains, combining to make the application give examples Making use of this software can the consumedly convenient system adjust to try, shortenning to develop time, having the higher and practical value更多还原