CHIPSCOPE的原理和应用设计

【作者】 冯波；

【机构】 武汉邮电科学研究院烽火通信股份有限公司微电子部；

【摘要】 本文介绍了CHIPSCOPE(芯片内部波形观测)技术的原理,分析了其采样机制和触发条件,提出了CHIPSCOPE的电路结构图,并利用CHIPSCOPE电路观测到具体电路在PGA内部信号波形。CHIPSCOPE采用JTAG链实时检测内部信号,改变了传统的测试方法,为调试和故障定位提供了极大的便利,缩短了新产品开发时间。更多还原

【Abstract】 The mechanism of CHIPSCOPE technology is introduced in the paper, the sampling mechanism and triggering condition are also analyzed here. The circuit architecture of CHIPSCOPE is presented. The wave of internal signal of FPGA is monitored by CHIPSCOPE. CHIPSCOPE makes use of JTAG to monitor internal signals, and this changes the traditional debugging methods. CHIPSCOPE has great advantages in debugging and locating the failure position and decreases the period of research of new products.更多还原