On Thu, 25 Mar 2004 19:59:22 -0600, "Earl Bollinger" <earlwbollinger@comcast.net> wrote:>The Motorola DSP56F80x series works good. >But maybe it is a little slow at 80mhz for you. Plus it's only a 16 bit DSP >chip. >I like the ones from www.newmicros.com as they come with ISOMAX(tm) and >FORTH built in for ease of use. >It's fun to not have to use a JTAG programmer unless you need it. >But there is also Metrowerks Code warrior, an assembler and a free Small C >compiler too. I think someone else has a C compiler too for it. >I like the chip for all the timers that it has and all the PWM channels you >can get going for motion control etc. > >"Chris Carlen" <crobc@BOGUS_FIELD.earthlink.net> wrote in message >news:c3tmh902tn1@enews2.newsguy.com... >> Hi: >> >> I'm looking for DSP-like microcontrollers and microcontroller-like DSPs. >> >> So far I am interested in TMS320F2812, but it is a bit heavy handed for >> some applications I would be considering. >> >> I had decided to move away from Microchip a few years ago and instead >> standardize on AVR for my 8-bit MCU of choice, mainly because of avr-gcc >> and the AVR architecture is much more pleasant to work with. My >> applications are ease of use and tool cost conscious more than anything, >> so I don't mind the slightly higher price of AVRs. >> >> But I will be needing some DSP capabilities. I would like to find a CPU >> that gives reasonable performance of 30-150MIPS with lots of MCU >> peripherals. The dsPIC and the TI are the ones I am aware of so far. >> >> I spent some time lately looking at the dsPIC again, and despite my >> wanting to avoid Microchip and their klunky architectures, I have to >> admit this chip seems dsPICable, er, I mean pretty nice. But the darned >> thing appears to be vaporware! >> >> Anyway, I will be attending a 1-day workshop with TI on the TMS320F2812, >> and getting a development kit. >> >> As for Microchip, I guess we'll just have to wait. >> >> Any other recommendations for MCU-like DSPs and DSP-like MCUs? I don't >> really like the idea of going to Motorola, since I have heard their >> tools are a headache (needing to but a different tool for each chip) and >> I never know if their chips are going to be discontinued tomorrow. >> Other than those objections, I do know they have some nice >DSP/controllers. >> >> Another idea I suppose for the 30-150 MIPS range might be ARM, since I >> know it has some MACs and stuff like that. Haven't really researched >> ARM much yet. >> >> I sure hope the market drives the production of more of these hybrid >> DSP/MCU type chips in the future. >> >> Thanks for comments. >> >> >> Good day! >> >> >> >> -- >> _____________________ >> Christopher R. Carlen >> crobc@earthlink.net >> Suse 8.1 Linux 2.4.19 >> > >Hi, make sure you take a look at the Analog Devices BlackFin family. 16-bit fixed point, reasonably priced and with excellent tools. AD actually calls these processors rather than DSP's. The BF533 is the one to look at the hardest. Cheers, Lou
MCU/DSP dsPIC Alternatives?
Started by ●March 25, 2004
Reply by ●March 26, 20042004-03-26
Reply by ●March 26, 20042004-03-26
Chris Carlen wrote:> Jim Granville wrote: > >> Jim Granville wrote: >> >>> The DSP vendors seem a little uncertain how to pitch to the general >>> microcontroller markets. Motorola and TI and Philips all have fast >>> FLASH solutions, whilst ADI seem to have chosen RAM based devices >>> and de-emphasised their flash lineups. > > > This lack of flash DSP microcontroller lineup for ADI is pushing me > strongly toward TI. > >> A little more on these comments - I see ADI are about to unveil a >> ADuC7xxx (ARM7/TAG Debug) Microconverter family, in 6mm x 6mm packages. > > > This could be real interesting.<snip> Yes, more info has now appeared : http://www.analog.com/UploadedFiles/Product_Highlights/568494395MCU_brochure.pdf & http://www.analog.com/microconverter Short form data is linked from here, but it is sparse (16-18 pages) They have 12 bit 1MSPS (!) ADCs, DACs, PWM, 45MIPS ARM7TDMI, 40/64/80 Pins, and an interesting thing called a PLA, which looks like 8+8 'FPGA Logic elements' - might be enough to do things like Quadrature conditioning, or fast-protection of PWM outputs, or dead-band control ? Claims a 32x32 -> 64 Mult & MAC, opcodes. Less FLASH than Philips, but higher performance peripherals, and smaller package options. Also includes Core regulator, for true single-chip operation. Not looking like good news for dsPIC, where signs are they struggle to meet the target speed specs of 30MHz, and dsPIC ADC spec is that of a jelly-bean 8 bit Core. -jg
Reply by ●March 27, 20042004-03-27
On 26 Mar 2004 00:13:07 -0800, jonsquire2000@hotmail.com (Jon S.) wrote in comp.arch.embedded:> I'm still waiting for my first dsPIC samples :) > > I know that TI has a good uC/DSP with quadrature decoders en CAN > interface. Don't find the partnummer right away. > > > > Thanks for the feedback folks.TMS320*28xx, where * if F or C, and xx is 10, 11, or 12 shipping right now and some smaller versions coming out later. -- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html comp.lang.c++ http://www.parashift.com/c++-faq-lite/ alt.comp.lang.learn.c-c++ http://www.contrib.andrew.cmu.edu/~ajo/docs/FAQ-acllc.html
