PIC vs AVR vs ARM
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From: linnix on 2 Oct 2006 18:16 > Almost all ARM have JTAG so if you need OCD you lose multiple pins. That is the positive side of ARM. Jtag is always there, and reliable. AVR Jtag, on the other hand, could be disabled, and thus un-reliable by definition.
From: steve on 2 Oct 2006 18:56 Miem wrote: > Hi All, > > As an amateur embedded circuit player, I have used couple of AVR and > PIC microcontrollers in the past. > > In these days it is not to hard to find small, ARM based ready to use > embedded boards under $100. They seems to have faster clock speed then > most of the AVR and PIC boards. > > Can anybody shortly compare ARM with PIC ad AVR interms of (a) > performance (b) software support (c) price? > > Regards, > > Miem AVR and PIC aren't really comparable with ARM, the first two are very low cost/power 8 bit machines, the ARM is a higher power, higher cost 32 bit machine. If you need to make a device that needs to run on a coin cell for 2 years, you can't pick an ARM processor, if you need a CPU that can do real time FFT, a PIC won't do it.
From: Buddy Smith on 2 Oct 2006 20:43 steve <bungalow_steve(a)yahoo.com> wrote: > AVR and PIC aren't really comparable with ARM, the first two are very > low cost/power 8 bit machines, the ARM is a higher power, higher cost > 32 bit machine. If you need to make a device that needs to run on a > coin cell for 2 years, you can't pick an ARM processor, if you need a > CPU that can do real time FFT, a PIC won't do it. I thought so too, but the products from luminary micro (luminarymicro.com), discussed in this newsgroup recently and in Circuit Cellar, have changed my mind. They make ARM CPUs with very little RAM and flash, on the cheap.... they say less than one dollar in 10k quantities (from an advertising spiel) ttyl, --buddy
From: steve on 2 Oct 2006 21:26 Buddy Smith wrote: > I thought so too, but the products from luminary micro > (luminarymicro.com), discussed in this newsgroup recently and in Circuit > Cellar, have changed my mind. > > They make ARM CPUs with very little RAM and flash, on the cheap.... they > say less than one dollar in 10k quantities (from an advertising spiel) > > ttyl, > > --buddy yes but they are very high power, I think 10x the power of the AVR at 1Mhz, if I remember correctly
From: Jason on 2 Oct 2006 21:57
To add to this question, I've been doing mostly AVR work and I'd like to branch into ARM. I had planned on just picking up some of Atmel's ARM gear, but would anyone suggest any other first leap friendly ARM procs? The Luminary has already been mentioned and seems interesting. Jason The place where you made your stand never mattered, only that you were there... and still on your feet Miem wrote: > Hi All, > > As an amateur embedded circuit player, I have used couple of AVR and > PIC microcontrollers in the past. > > In these days it is not to hard to find small, ARM based ready to use > embedded boards under $100. They seems to have faster clock speed then > most of the AVR and PIC boards. > > Can anybody shortly compare ARM with PIC ad AVR interms of (a) > performance (b) software support (c) price? > > Regards, > > Miem > |