communication between Stellaris microcontroller and OSX -


i'm trying send sampled data stellaris lm4f120 launchpad (link) adc host computer runs osx 10.6.8. first, tried using uart send 4 bytes of data every 1.25 ms, rate @ collect data. read these values via minicom running in command line on osx side , printed text file. tested out correctly sampling signals 1 hz input sine wave , when plotting results, found 1.5 hz sine wave indicated there aliasing occuring. think uart not sending values host enough meant microcontroller wasn't sampling fast wanted to.

i tried fixing problem creating bigger data buffer , sending data @ once. problem memory on board can hold 32 kb , need 400 kb without time lags in between.

i'm not sure try next. i've heard usb might work, don't know start path. advice on direction take next?. i'm new working microcontrollers, i'm not sure options should considering when improving rate @ can send data.


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