Recommendation: Low power microcontroller for battery powered logger
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From: Mark Borgerson on 30 Mar 2010 10:19 In article <hosshf$bnm$1(a)news.eternal-september.org>, hamilton(a)nothere.com says... > On 3/29/2010 10:28 PM, geomet wrote: > > On Mar 30, 1:28 pm, Mark Borgerson<mborger...(a)comcast.net> wrote: > >> In article<d5fc55c3-9ce7-4a38-afa2- > >> 7300a9952...(a)l18g2000prm.googlegroups.com>, ross.g.march...(a)gmail.com > >> says... > >> > >> > >> > >>> Hi All, > >> > >>> I'm after a recommendation for a microcontroller with the following > >>> features: > >> > >>> Needed: > >>> - 3.3V > >>> - in circuit programming > >>> - I2C I/O > >>> - low power sleep mode > >> > >>> Wanted: > >>> - cheap / free compiler > >>> - on board RAM / EEPROM / Flash memory for logging (64K min) > >> > >>> What I'm trying to do: > >>> Log measurements from a sensor IC that communicates via I2C. > >> > >> Been there, done that. Used an MSP430 and SD card for the > >> logging. > >> > >> If you want to log to the onboard flash memory, you'll be > >> more limited with the MSP430 series. > >> > >> I use the Imagecraft compiler. About $250. Good technical > >> support and prompt response to problems. Another $100 gets > >> you the NoIce debugger. Very handy and well supported. > >> Unless you alread have a JTAG system, plan on another > >> $100 for a USB-JTAG interface for programming and debugging. > >> > >> I don't know if a total cost of ~$350 counts as cheap for you--- > >> but I made that back on my first project and put money in > >> the bank! > >> > >> Mark Borgerson > > > > yep $350 is definitely cheap enough... last commercial compiler i used > > was> $1000 ... > AVR processors have low power modes and there is a free compiler available. > > A In System Programmer can be built your self or a cheap one can be > purchased from Digikey. > > WINAVR compiler FREE > AVR Studio IDE FREE > AVR ISP mk II $35 > Does that include a debugger with the ability to set breakpoints, single-step, examine variables and registers, etc. ? I plead woeful ignorance as to the components and functionality of the AVR Studio. Mark Borgerson |