On 05/21/2012 09:14 PM, Anthony Cutler wrote: > This reality might be *much* closer than we think. Atmel produces a > line of 32-bit floating point ready chips, with a variety of various > flash and SRAM sizes with their 32-bit AVR UC3 series: > http://www.atmel.com/products/microcontrollers/avr/32-BitAVRuc3.aspx > > In particular, their AT32UC3C0512CAU chip is extremely flexible: > http://www.atmel.com/devices/AT32UC3C0512CAU.aspx > > "32-bit AVR flash microcontroller featuring 512KB Flash, 68KB SRAM is > designed for industrial and automotive control applications, optimized > for fast communication and motor control. The device family features a > floating point unit, FlashVault code protection, single or dual CAN > interfaces, dual LIN interfaces, USB with OTG, PWM with dead-time > insertion, a 16 channel 12-bit ADC with dual sample-and-hold circuit > for simultaneous sampling of 2 signals, a 2 channel 1.5 Msps 12-bit > analog DAC. Designed with the multi-layered databus, 64KB on-chip SRAM > with dual interfaces, the AT32UC3C offers an outstanding data throughput. > > The AT32UC3C Event System provides a connection between on-chip > peripherals to off-load the CPU, saves power consumption and provides > a 100% deterministic response to external and internal events." > --------------------------------------- > > Not to mention, it runs at 66Mhz. It's *relatively* cheap, at > $19.78/chip in 1 unit pricing and $12.42/chip in 25+ unit quantities: > http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=AT32UC3C0512CAU > > <http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=AT32UC3C0512CAU> > > There are floating point options available! > > -73, KE7HQY > Cortex A8 SoCs at 700MHz or more can bought for $5 or less in medium quantities. There is no shortage of reasonably priced processors with a good peripheral mix these days.
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