32 bit microcontroller with external memory bus needed
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From: -jg on 14 Apr 2010 06:50 On Apr 14, 3:23 pm, WindowsGeek <windowsg...(a)gmail.com> wrote: > I'm looking to branch out beyond the PIC chips that I've programmed in > the past. I'm looking for a 32 bit microcontroller with an external > memory bus. Do you mean external CODE memory, (how much?) or a parallel bus that can interface to SRAM like peripherals ? > Beyond those requirements, speed is probably the next concern. I'd > prefer something with16 bit ADC and DAC but I suppose that might be > asking a bit much. You are unlikely to get both External memory and 16b analog. eg ADi have ARM variants with 16/24b ADC, but they are microcontrollers. (ie on chip code only) I see their newest Eval boards are getting cheaper. =jg
From: Mike Harrison on 14 Apr 2010 18:37
On Tue, 13 Apr 2010 20:23:47 -0700 (PDT), WindowsGeek <windowsgeek(a)gmail.com> wrote: >I'm looking to branch out beyond the PIC chips that I've programmed in >the past. I'm looking for a 32 bit microcontroller with an external >memory bus. > >Beyond those requirements, speed is probably the next concern. I'd >prefer something with16 bit ADC and DAC but I suppose that might be >asking a bit much. Of course, it has to cost nothing... > >Seriously, I'm quite unfamiliar with the 32 bit microcontroller world >and trying to find a part with an external memory bus hasn't been as >easy as I thought it would be. It can be downright impossible to >determine from a mfr's literature which parts have the external bus >interface and which don't. > >So I thought I'd come to the group for recommendations. I am a >hobbyist, and while I'm willing to spend some money on development >boards and tools, I'm not going to spend past 'this-is-fun' levels. > >I appreciate your input! Some of the NXP LPC2xxx ARM7 devices (e.g. LPC2478) have external memory bus, with SRAM and SDRAM controller |