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是否有“白痴指南”如何为第三方设置Zynq 7000系列进行边界扫描? 我有一个测试工作,但我得到间歇性的测试结果取决于Zynq在其启动过程中的位置。 我的希望是将Zynq置于一个“自由切换”状态,它不会尝试配置或与内存通信,但允许我的第三方过度访问所有边界扫描单元。 谢谢你的帮助! 以上来自于谷歌翻译 以下为原文 Hi Everyone, Is there a "Idiot's Guide" to how to setup a Zynq 7000 series for boundary scan by a third party? I have a test that sort of works, but I get intermittant test results depending on where the Zynq is in it's boot process. My hope would be to put the Zynq in a "lobotomized" state where it's not trying to configure or talk to memory, but allows my 3rd party tool access to all the boundary scan cells. Thanks for any help! |
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有没有人对这个问题有所了解?
我想找到相同的信息。 我也正在编写边界扫描测试,我遇到了同样的问题。 (间歇性故障取决于Zynq在引导过程中的位置。) 我一直在搜索文档,试图找到可能定义的位置。 在UG470 v1.10中,第80页指出可以通过在初始化期间将INIT_B保持为低来延迟配置。 这是Xilinx FPGA过去一直以来的工作方式。 但是,UG585 v1.10,第219页声明不应在Zynq 7000上进行此操作,因为这不会向PS指示。 虽然文档说明不这样做,但我找不到替代方案。 在初始化期间将INIT_B保持为低电平似乎是在保持PL配置,但PS仍然在做它的事情。 将PL和PS保持在允许1149.1测试的状态的适当方法是什么? 以上来自于谷歌翻译 以下为原文 Does anyone have an answer to this question? I am trying to find the same information. I am also writing a boundary scan test and am having the same issues. (Intermittent failures depending on where the Zynq is in the boot process.) I have been searching through documentation trying to find where this might be defined. In UG470 v1.10, page 80 states that configuration can be delayed by holding INIT_B low during initialization. This is what has always worked for me with Xilinx FPGAs in the past. However, UG585 v1.10, page 219 states that this should NOT be done on the Zynq 7000 because this is not indicated to the PS. While the documentation states not to do this, I cannot find what the alternative is. Holding INIT_B low during initialization seems to be keeping the PL from configuring, but the PS is still doing its thing. What is the appropriate method for keeping both the PL and the PS in a state that allows 1149.1 testing? |
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