How to begin in DSP

Hello,

I'm impressed with the pedalshield. Thank you very much for the contribution.

I would like to take part in this but I just program only mcu 8bit (avr) .

anybody can indicate me where to find information to understand what happens here. I dont know the ARM MCU. I guess that i need about arm knowledge for do something with the guitar shield.

thanks

AVR Introduction (Hack a Day)

This isn't using AVR chips, but it is an intro to DSP and is what I'm using as the foundation for my undergrad capstone project. Real-Time DSP 2nd Edition

Hi,

thanks for the informatiion, now i can begin!


Thanks for the book

I know that some "Hot to DSP" documentation looks pretty intimidating in the beginning. Specially when they start to talk about floating/fixed point, FFT or Laplace Transform.

DSP in an Arduino environment is much simpler than that, plainly speaking can be reduced to (1) read ADCs, (2) modify the read values and (3) write in the DACs. There are some basic lines here www.redcedar.com/learndsp.htm

Also www.musicdsp.org has a lot of good information in the Archive section they have a lot of effects and filters coded in C where you can inspire yourself.

Hi,

I find your link very interesting and a good point to beginning. I will read today the information.

Thanks

JR has a point. There's a lot to be said about just messing with the code to see what happens. In fact that's a lot of what I plan to do despite being a computer science/mathamatics dual major. Play around with the libraries JR has coded and change values to see what happens.

I have no concept of your coding ability, or more accurately your mathematical saviness, so that DSP book maybe for the future. Heck I barely understand half of what is going on in that book without some desperate searching on the internet, but I'm doing a research project.

Do you have a link to the API where all these functions/objects come from? ie pmc_set_writeprotect(), ADC

In the Atmel site there is plenty of information about the Power Management Controller( ie pmc_set_writeprotect()):
asf.atmel.com/docs/latest/sam.drivers.us...458a39e38d17627da505

The ADCs, DACs, TCs, PMC, Atmel source codes can be found in your computer in "C:\Program Files (x86)\Arduino\hardware\arduino\sam\system\libsam\source"

Hey,

I think this thread suits my query, so here it goes;
I just recently got my hands on a Pedalshield kit. Assembly was straightforward, and the next step was the coding. I thought I would try the examples as a first port of call, and I feel like everything is as it should be, but when I try and import any of the example effects into the Arduino software, I get the message:

Verify successful
Set boot flash
CPU reset
(in red writing in the console)

There is then no effect to be heard, just the clean signal running through from the amp.

I fairly beginner in this area, however I'm trying to learn, but despite hours trying to figure out the problem, I am stumped. Could anyone help?