5 ms·
I wonder how real time systems would work without a clock to synchronize everything.
by AYBABTME 11y ago
I wonder how real time systems would work without a clock to synchronize everything.
- wmf 11y agoYou can always incorporate some synchronous logic where it makes sense, like measuring time.
- davelnewton 11y agoIt's not that there aren't clock signals available, and real-time systems are almost always better described as "deterministic".
- javcasas 11y agoNot everything has to be asynchronous. For example, if your real-time system has to respond in less than 1ms, all you have to do is design a system able to respond in less than 1ms. If your system has to respond in exactly 1ms, you take the previous system (the one able to respond in less than 1ms) and use a 1ms clock/timer/monostable to delay it.
- nraynaud 11y agoactually you would want your system to react at the speed of its input (the world as seen form its point of view), not at the speed of its clock. And if you actually wanted a clock (say for an alarm clock in the morning), you could still input a clock to your system, that wouldn't entitle gating the whole system and having clock domains and that stuff.
- davelnewton 11y agoThat's not necessarily true, especially when interfacing with mechanical components.