before i use the rtems , i just write the bare-metal code. now i want to use the rtems. but i do not know how to add the original bare-metal interrupt routine into the rtems program.
is it has conflict betweent the bare-metal code and the rtems code? I has no idea about how to use my old code into the rtems code . in my old code ,i has some interrupt routine which need nested. and has a background routine to process comunication . bin.w...@qkmtech.com From: Chris Johns Date: 2017-12-29 14:21 To: bin.w...@qkmtech.com; Users Subject: Re: smp support On 29/12/17 12:16 pm, bin.w...@qkmtech.com wrote: > thanks a lot . > > i have another question , if i use the smp, can i use the interrupt of rtems? > which i want to interrupt period of hard real time of 125us. > Yes you can. > i do not know the difference of the bare-metal interrupt and the rtems > interrupt > . is the rtems interrupt have performance loss of the hard real-time? The interrupt overhead will have the same overhead each time and its deterministic behaviour will depend on the other interrupts in your system and their priority. The performance will depend on what you need to do in the interrupt. > > what the schedule method of smp use? is it can affect the interrupt > performance? > That depends on your application. Chris
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