如何使用PSOC5测量CPU时间？

一个带有中断计数的ARMISCORM一个变量的解决方案。
HTTP://www. CyPress？COM/？RID＝38267 AN51460
一些DSO范围扩展了处理长期事件的时基，
所以用一个引脚来触发启动，并且它的另一个边停止测量。
问候，Dana。



     以下为原文
  ARM Systick with an interrupt incing a count variable one solution.
     
        
              http://www.cypress.com/?rID=38267     AN54460

     
    Some DSO scopes have extended time bases to handle long events,
    so use a pin to trigger start, and its other edge to stop to measure.
     
    Regards, Dana.

这可能也有帮助。
HTTP://www. CyPress？COM/？APP =论坛和ID ID＝2233和；RID＝49587
你可以使用一个插销和一个外部周期计数器。
它必须是一个倒数计数器或具有这种能力。
问候，Dana。



     以下为原文
  This might help as well -
     
        
              http://www.cypress.com/?app=forum&id=2233&rID=49587
     
    You could alwyas use a pin and and gate an external period counter.
    It would have to be a reciprocal counter or have that capability.
     
    Regards, Dana.

如果你有备用的别针。你可以在一个例程上发送一个脉冲，并在另一个例程上发送2个脉冲。然后你可以使用一个CRO捕捉脉冲来检查它们之间的时间。并且通过在较长时间内记录脉冲来检查变化。



     以下为原文
   If you have a spare pin. You can sent one pulse on one routine and send 2 pulses on the other. Then you can use a CRO to capture the pulse to check the time between them.  and also check for variation by recording the pulse over a longer time as well.

检查你的CRO（DSO），大多数，不是全部，有最大扫描速率lt；10秒/ div，
因此不能测量1小时（3600秒）/360 dVIEW事件。在那
情况下，你最好用数据记录器，或者使用另一个PSoC。
测量延长周期。任何PSoC都能做到这一点。
如果我没有弄错的话，HLI在前一段时间贴了一个倒数计数器。
在论坛上，这可能是长期测量系统的基础。
在互惠计数器附加信息。
问候，Dana。
计数器9Zip
13.5兆字节



     以下为原文
  Check your CRO (DSO), most, not all, have max sweep rates < 10 sec/div,
    therefore cannot measure 1 hour (3600 sec)/360 dvision) events. In that
    case you would be better off with a datalogger, or use another psoc to
    measure extended periods. Any PSOC could do that.
     
    If I am not mistaken hli posted a reciprocal frequency counter some time ago
    on the forum, that could be the basis of a long period measurement system.
     
    Attached info on reciprocal counters.
     
    Regards, Dana.

•   Counters9.zip 13.5 MB  
  
  

愚蠢的我。我总是认为时间在第二个范围内。



     以下为原文
  Silly me. I always think time being task in sub-second range.

很好的文档，虽然阅读它们花了我一些时间。
鲍勃



     以下为原文
  Nice documentation, although reading them all took me some time.
     
    Bob

你也可以使用计时器。时钟在1Hz，使用“全局信号的组成部分，它可以给你一个PPS。然后，您可以启动和停止计时器时，要看所用的时间在几秒钟内直接。
或者你把32 kHz晶体使用RTC组件（但它没有时间概念，UNIX，所以你需要自己进行计算）。



     以下为原文
  You can also use a timer. To clock it at 1 Hz, use a 'global signal' component, which can give you a PPS. Then you can start and stop the timer whenever want, and read the elapsed time in seconds directly.
    Or you attach a 32 kHz crystal and use the RTC component (but it doesn't have the notion of unix time, so you need to do the calculations on your own).

我想他是出于UDB中.........也许SysTick如果那不是已经在使用。
问候，Dana。



     以下为原文
  I think he is out of UDBs.........maybe systick if thats not already in use.
     
    Regards, Dana.

谢谢大家的回答！
但我找不到任何真正的文件在SysTick定时器。
我知道这是手臂的一部分，似乎有几apicalls但不能找到描述。
HTTP://www. CyPress？COM/？44506有一个docID =项目和一些其他的链接，如cy_boot项目文件？但这恰好有1个参考实质不描述所有的API。
几个链接给我带来了HTTP://www. CyPress？应用=论坛&；ID = 2233 &；摆脱= 49587但这是另一个家伙试图获得实质工作…不确定他曾经做过。
在SysTick的armdocumention：http://infocenter.arm.com/help/index.jsp？主题= / com.arm.doc.dai0179b/ar01s02s08.html这是好事，但没有给出具体如何选择时钟和各种事物的选择和它是如何开始的。
我想我只是读systick_current登记在0xe000e018开始减，最后从价值。我是一个32位数字，所以要有足够的分辨率。
我不需要一个中断计数-我需要这个计数器在1kHz的ILO跑步给了我1000个多小时。的ilois - 55% / 100%并不是很准确，我想可能是足够接近。我也用SysTick中断使1秒中断+ / -百分之三的精度，然后数秒。
我完全失去了UDBs（关于发布，以及），这需要一个百分百的CPU功能。再次，我不需要太多的精度-只是一个粗略的挂钟#。



     以下为原文
  Thanks for the answers guys!
    But I can't seem to find any real documentation on the systick timer.
    I know it is part of the ARM and there appears to be a few API calls but I can't find the description.
    http://www.cypress.com/?docID=44506 has a sample project and a few other links to documents like the cy_boot project? But that has exactly 1 reference to systic and does not describe the API at all.
    Several links bring me http://www.cypress.com/?app=forum&id=2233&rID=49587 but this is another guy trying to get the systic to work... not sure he ever did.
    The ARM documention on SysTick is:http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0179b/ar01s02s08.html which is good but doesn't give the specifics of how to select the clock and what various things are selected and how to start it.
    I think I can just read the systick_current register at 0xE000E018 at the start and subtract that from the value at the end. I assume it's a 32-bit number so should have plenty of resolution.
    I shouldn't need an interrupt to count - I just need this counter running on the 1Khz ILO gives me over 1000 hours. The ILO is -55%/+100% which isn't quite as accurate as I'd like but probably close enough. I could also use the systick interrupt to make a 1 sec interrupt with +/-3% accuracy and then count seconds with that.
     
    I am completely out of UDBs (about to post about that as well) so this needs to be a 100% CPU function. Again, I don't need much accuracy - just a rough wall-clock #.

这应该有帮助。
HTTP://www. CyPress？COM/？APP =论坛和ID ID＝2492和；RID＝85773
问候，Dana。



     以下为原文
  This should help -
     
         http://www.cypress.com/?app=forum&id=2492&rID=85773         
     
    Regards, Dana.