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你好,我给了一个10kHz的时钟到PSOC3套件的两个引脚:P1〔2〕和P3〔2〕。两者都被配置在“数字输出”引脚的示意图中……当我检查CRO上的输出时,我得到方波(如预期)…但是两个波的振幅是不同的……它对于P1(2)大约为3伏,对于P3(2)来说是4.4V左右。我........................ VDDD是3.3和VDDA 5。-----------------------------------------------------------------现在,HTTP://www. CyPress。DoCID=42947。这个链接表明端口3应该被用作模拟,而端口1应该是数字的……所以这可以解释它……但我有“配置”为“数字输出引脚。那么为什么振幅不同呢????
以上来自于百度翻译 以下为原文 Hi there....I am giving a 10KHz clock to two pins of PSoC3 kit : P1[2] and P3[2]. Both have been configured in the schematic as "DIGITAL OUTPUT" pins...... When I check the output on a CRO, I get square waves [as expected] ...BUT the amplitude of both the waves is different.............it is around 3 volts for P1[2] and around 4.4volts for P3[2]. ........................my VDDD is 3.3 and VDDA is 5. ------------------------------------------------------------------------------------------------------------------- NOW, http://www.cypress.com/?docID=42947 This link suggests that Port 3 should be used as analog while Port 1as digital......SO this might explain it.............. But I have "configured" the pins as "DIGITAL" OUTPUT . So why varying amplitudes??? |
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11个回答
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你使用的是PSOC3套件?第一次接触,A - 030或A - 001。我想看一下示意图。
鲍勃 以上来自于百度翻译 以下为原文 WHICH PSoC3 kit are you using? a FirstTouch, a -030 or a -001. I'd like to have a look into the schematic. Bob |
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我用的是-030。此外,我已经设置跳线设置为5V模拟…3.3数字。
以上来自于百度翻译 以下为原文 I am using -030. Also I have set the jumper settings to be 5V analog...3.3 Digital. |
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其原因是不同的IO端口被绑定到不同的电压轨。看看这030个工具包的原理图。这表明,vddio1和vddio2连接到Vddd(数字轨道),而vddio3和vddio0连接到Vdda(模拟轨道)。
P3口[ 3 ]是由vddio3,它被设置为5V,P1口[ 2 ]是由vddio1,它被设置为3.3V。所以一切就应该是这样的:) 记住:电脑你告诉他们,不是你想让他们做的事情… 以上来自于百度翻译 以下为原文 The reason is that the different IO ports are bound to different voltage rails. Have a look at the schematic for the -030 kit. It shows that Vddio1 and Vddio2 are connected to Vddd (the digital rail), while Vddio3 and Vddio0 are connected to Vdda (the analog rail). Port P3[3] is powered by Vddio3, which is set to 5V. Port P1[2] is powered by Vddio1, which is set to 3.3V. So everything is how it should be :) Remember: Computers to what you tell them, not what you want them to do... |
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我不知道是我自己设计/调试问题和问题的原因!
非常令人不安的信息披露… 问候,Dana。 以上来自于百度翻译 以下为原文 I had no ideas that I was the cause of my own design/debugging issues and problems ! Very disturbing disclosure Hli..... Regards, Dana. |
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这是我调试问题的黄金法则:总是假设它是你自己的错。这可能是95%的时间,也节省了我很多时间(还有公众的尴尬……)
以上来自于百度翻译 以下为原文 This is my golden rule for debugging problems: always assume its your own fault. Its true for maybe 95% of the time, and saves much of my time (and public embarrassment too...) |
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好的……我一直认为,设置跳线设置为3.3数字将意味着该工具包将永远给3.3伏特的数字情况。
但随着港口作为模拟和数字,它可能甚至3.3跳线设置]的…甚至达到5V数字[ . 好的逆境……在某些情况下是有用的!!!! 谢谢!!!!!!! 以上来自于百度翻译 以下为原文 ok.......i always thought that setting the jumper settings to 3.3 digital would mean that the kit will always give 3.3 volt for digital cases. But with the ports behaving as analog and digital, it gets possible to achieve even 5v digital [even with 3.3 jumper settings].... . good versatality.........will prove useful in some cases!!! Thanks !!!!! |
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这实际上是(MIS?)董事会的特点,而不是PSoC。PSoC有模拟电源的概念,数字电源和IO电源电压。所有的模拟电源和数字电源的模拟部分,数字部分的所有。然后有四种不同的IO库,每一个都可以由一个单独的电压供电。现在的030盒的设计,3家银行均由模拟电源电压供电,与其他两个数字电源电压。所以这是误导,如果不深入看看板子的原理图。我认为这是与包好的实践集模拟和数字电压相同的时间价值。这将避免混乱。只有当设计你自己的董事会应该看哪个IO银行应该有一个不同的电压(或如果你有一个很好的理由这样做的工具,并明白你在做什么)。此外,它可能是好的如果柏延伸套件文档解释的这一特点,突出的地方,以避免这样的困惑。
以上来自于百度翻译 以下为原文 This actually is a (mis-?)feature of the board, not of PSoC. PSoC has the notion of analog supply, digital supply and IO supply voltages. The analog supply powers all analog components, and the digital supply all the digital components. Then there are four different IO banks, each of which can be powered by a separate voltage. Now the design of the -030 kit is so that 3 banks are powered by the analog supply voltage, and the other two by the digital supply voltage. So this can be misleading if one doesn't deeply look at the schematic of the board. I think it is good practice with the kits to set analog and digital voltage to the same value all the time. This will avoid confusions. Only when designing your own board one should look at which IO bank should have a different voltage (or if you have a very good reason to do so with the kit, and understand what you are doing). Also, it might be good if Cypress extends the kit documentation to explain this feature in a prominent place to avoid such confusions. |
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鹅
你应该提高支持的情况下,他们可以把一个bug修复要求的团队 以上来自于百度翻译 以下为原文 @Goose, You should raise a support case so they can put a bug fix request to the team |
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我同意。应该修改工具箱文档,以解释将来的初学者。
呃,我已经注册了一个关于这个问题的支持案例!!!! 以上来自于百度翻译 以下为原文 I agree..the kit documentation should be modified to explain this thing for future beginners. @ H L, I have registered a support case regarding this issue!!! |
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