I used F149 to sample a two-channel signal at 2x40 kHz (internal ADC at 80 kHz aggregate sampling rate) and 8-tap FIR/decimate it to 2x20 ksmpl/s in real-time. The clock was 8 MHz and decimation code was optimized assembly. As far as I recall CPU was utilized at 80% (40 us processing time out of 50 us interrupt cycle).
Device size probably does not matter much for sampling, but if you need to do any signal processing it is handy to have an HW multiplier. Sergei P.S. Tool chain and documentation/examples are really in great shape. I recently had a chance to use gnu tools with ARM7 and (surprisingly) it was much more work to get it going. The main difference is that with MSP430 you get everything from one place. The only weak spot IMHO is insight. Is there a binary for 6.x I can download? > -----Original Message----- > From: mspgcc-users-ad...@lists.sourceforge.net > [mailto:mspgcc-users-ad...@lists.sourceforge.net] On Behalf > Of Peter Mueller > Sent: Thursday, August 12, 2004 12:08 PM > To: mspgcc-users@lists.sourceforge.net > Subject: [Mspgcc-users] which msp430 > > > Hi, > > I've not a good overview about all the members of the 430 family. I > like to use a F149 for sampling a stereo audio signal at about 22k/s. > Is the F149 capable to do this? Is there a smaller device > also able to > do the job? > > Thanks a lot, > Peter > > P.S: Today I installed the tools on windows, compiled an example for > the 1121, downloaded it - and I could debug, even with ddd. > Really cool > - congratulations for your work! > > > > ------------------------------------------------------- > SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media > 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 > Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. > http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 > _______________________________________________ > Mspgcc-users mailing list > Mspgcc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mspgcc-users >
