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RT-Thread一般讨论
Interrupt latencies
发布于 2019-11-20 23:01:20 浏览：1116
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How can I measure interrupt latencies for RT-Thread? Does cyclictest work?
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WillianChan
2019-11-21
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RT-Thread has its own test cases to test interrupt delays, but this part of the code is not public.
yqiu
2019-11-21
这家伙很懒，什么也没写！
Hi dennaoui, cyclictest should be ported to RT-Thread before it can work.
dennaoui
2019-11-21
这家伙很懒，什么也没写！
>Hi dennaoui, cyclictest should be ported to RT-Thread before it can work. --- Do you have any idea how to port it to RT-Thread in my case? I would really appreciate it if you can help me out.
dennaoui
2019-11-21
这家伙很懒，什么也没写！
>RT-Thread has its own test cases to test interrupt delays, but this part of the code is not public. --- Do you know how I can find these codes or who to contact? I am totally new, thank you :)
MikeCai
2019-11-22
这家伙很懒，什么也没写！
Debug way with Keil: A)I am not sure if you want to measure the period time for a Interrupt ? if it is, and you use KEIL for debug? set the core clock for your CPU like this way, 1)select debug item from options for target,choose you debug linker , 2)press setting button and select Trace item,you can see the core clock, make sure your CPU core clock,and input it. B) try to active t0/t1 for KEIL debug window[]right down corner],you can search the way ,how to active it. C) set break point at the Start /End point for your Interrupt routine. full speed run your code with KEIL. D) compare the timer to or t1 ,you can get the interrupt latencies, print message way: 1)set two global var int32 timeA,timerB; 2) timerA = system get current tick() at interrupt beginning 3) timerB = system get current tick() at interrupt end 4)interrupt latencies = timerB - timera
dennaoui
2019-11-22
这家伙很懒，什么也没写！
>Debug way with Keil: >A)I am not sure if you want to measure the period time for a Interrupt ? > if i ... --- Hello! Unfortunately, I don't know if I can use the Keil debugger for my case because I'm basically using an emulated machine using QEMU, not a real MCU. But I'd like to go with the second method, the print message way but I'm not getting how to code it down.. Can you please write me the code in the RT-Thread programming way and I'll run it on RT-Thread! Thank you so much for the help!!
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