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Re: Simulator and emulator
In general, we call the software based simulator as 'Simulator', while the hardware based boxes which could simulate the actual CPU runing as 'Emulator'
interfacing of microcontroller with computer
RS232 interface can generate interrupts and it needs few wires, but it will cost more because of a external RS232 level -shifter (such as max232) is needed.
parallel port need almost no externel components, but it is diffcult to handle the realtime...
You can try to make a switching mode power supply(DC - DC convertor) by yourself with chip comes from ST or Linear Technology and few passive components. It's effiency is can reach up to 85% or even higher.
Re: A DSP HW Problem
Since you have 1 sec data frame, the sample rate is determinded by how many samples in this 1 sec data frame. If there are 10 samples in 1 sec data frame, the sample rate Fs is 10Hz.
To increase the freq resolution of the data, just pad zeros at the end of the data frame...
Re: dsp processor?
There are many dsp vendors, whose website is of great help for learning the usage of dsp processors.
I think the doc at www.ti.com is the best.
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