JTAG 接口中EMU引脚是否可以不用的情况下,同时可以使用XDS100/200/560仿真器
关于JTAG的EMU引脚的具体有什么作用
Susan Yang:
关于EMU以及JTAG,请您参考下面的wiki页面
dev.ti.com/…/node
dev.ti.com/…/node
Q: What are the EMU0/1 pins used for?
A: The EMU0/1 pins can be used for cross-core triggering (ex: one device halts and signals the others to halt, see Advanced Event Triggering or, in some selected devices, these pins are used for Wait in Reset and transfer instrumentation and trace information. Please see the device datasheet/TRM for details.
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Susan Yang:
另外附上JTAG/MPSD Emulation Technical Reference
www.ti.com/…/spdu079a.pdf
www.ti.com/…/spru655i.pdf
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huaxiong huang:
对于这些问题我还是有点模糊,可以直接不用EMU引脚的情况下是否影响仿真器的使用和在线仿真的功能
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Susan Yang:
很抱歉,之前miss掉了您的回复
附上一个XDS100V1的sch,您可以看一下连接情况
xds100schematic.pdf
您是可以不使用EMU 0/1的
另外附上E2E内相关的讨论
https://www.ti2k.com/wp-content/uploads/ti2k/DeyiSupport_Hercules_what-is-the-functionality-excluded-if-removed-emu0-emu1-pins-on-xds100v1