I have found these references to be the most helpful. The Linux Programming Interface <https://www.safaribooksonline.com/library/view/the-linux-programming/9781593272203/> by Michael Kerrisk Linux Kernel Development, Third Edition <https://www.safaribooksonline.com/library/view/linux-kernel-development/9780768696974/> by Robert Love Linux Device Drivers, 3rd Edition <https://www.safaribooksonline.com/library/view/linux-device-drivers/0596005903/> by Jonathan Corbet ...
Regards, John > On Dec 7, 2015, at 7:01 AM, Chelsea Orefice <[email protected]> wrote: > > Hi John, > > These are very helpful links. I was wondering if there was an online document > on all functions that I can code BBB in either in C, C++, python, etc. > > Thanks, > Chelsea > > On Thu, Dec 3, 2015 at 11:12 PM, John Syne <[email protected] > <mailto:[email protected]>> wrote: > Hi Chelsea, > > Here are some reference I have found helpful: > > http://www.analog.com/library/analogdialogue/archives/39-05/op_amp_applications_handbook.html > > <http://www.analog.com/library/analogdialogue/archives/39-05/op_amp_applications_handbook.html> > http://www.analog.com/library/analogDialogue/archives/39-06/data_conversion_handbook.html > > <http://www.analog.com/library/analogDialogue/archives/39-06/data_conversion_handbook.html> > > Regards, > John > > > > >> On Dec 3, 2015, at 5:57 PM, Chelsea Orefice <[email protected] >> <mailto:[email protected]>> wrote: >> >> Hi John, >> >> Just wanted to say thank you for really helping me with this. It has been a >> struggle for me and my team to get help from different resources at school >> as well as our liaisons where we are getting our design requirements from. >> (This is our senior engineering project.) >> >> I am having still a little difficulty in understanding how the circuitry I >> shared with you may give me a single input instead of differential that the >> ADC requires.I attached the actual design of the system, so if you could >> help me understand how it won't work it'd be much appreciated. >> >> Also, may you tell me your background in relation to all of this? You are >> very knowledgeable in this area, and when I relay some of this information >> to my team I would like to share from whom I received this information from. >> >> >> Sincerely, >> Chelsea >> >> On Thu, Dec 3, 2015 at 7:01 PM, John Syne <[email protected] >> <mailto:[email protected]>> wrote: >> Hi Chelsea, >> >> I have cc beagleboard because someone else might learn from this discussion. >> Looking at the link you provided, it won’t work because ADS1278 requires a >> differential input. Look at page 39 for circuits that will work for you. >> >> Regards, >> John >> >> >> >> >>> On Dec 3, 2015, at 3:52 PM, Chelsea Orefice <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> My apologies. Please let me know if this link works. (You will need to just >>> copy and paste in search bar). If that doesn't work I will send it as an >>> attachment. Will also look at the diagram as well. >>> >>> http://cnx.org/resou >>> <http://cnx.org/resou>rces/72628d36f0c24bc80ff94e5c0bf6df2b27a86751/opamp4.png >>> >>> Thanks again, >>> Chelsea >>> >>> On Thursday, December 3, 2015 at 6:46:49 PM UTC-5, john3909 wrote: >>> Look at page 39 for a suitable input circuit. >>> >>> Regards, >>> John >>> >>> >>> >>> >>>> On Dec 3, 2015, at 3:03 PM, Chelsea Orefice <[email protected] <>> wrote: >>>> >>>> Hi John, >>>> >>>> Thanks for getting back to me. I was actually looking at that same ADC >>>> converter as you posted in your reply. Just looking for some clarification >>>> on a few things. What type of error would a simple resistor divider >>>> introduce into the system? I am currently using a cascaded inverting op >>>> amp system. Not really sure if this will scale the input voltage to a >>>> level that is compatible with my ADC. >>>> >>>> The circuit diagram looks like this: >>>> >>>> >>>> Looking forward to your reply, >>>> Chels >>>> >>>> On Thursday, December 3, 2015 at 5:07:41 PM UTC-5, Chelsea Orefice wrote: >>>> Hi everyone, >>>> >>>> I am new to the world of using MCUs and am looking for some assistance on >>>> a project that I am currently working on. To sum things up quickly, I am >>>> building a data aggregation unit that can convert analog voltage readings >>>> to digital values that is to be stored on a USB or SD card. The DAU will >>>> collect 3 types of signals, a buffer signal, clipped signal, and a signal >>>> passed through a LPF. In the end, the data should be stored as either a >>>> MatLab file or .xml file. However, I am facing a few road blocks relating >>>> to my design. >>>> >>>> 1.) I need to use a 24 bit ADC for high resolution purposes based on >>>> design requirements that were just given to me as I will be collecting >>>> data from .1mV to 50V and it has to have a high sample speed rate. Has >>>> anyone connected an external ADC to the BBB? If so, what was the brand of >>>> your external ADC? How did you connect the ADC to the BBB? (It'd be >>>> greatly appreciated to be able to see a design). >>>> >>>> 2.) If you have had a similar project to this, was wondering how you went >>>> about it. Any advice would be greatly appreciated. >>>> >>>> >>>> As I said before, all of this is very new to me. So thank you for taking >>>> the time to help me out. >>>> >>>> Chelsea >>>> >>>> >>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> <http://beagleboard.org/discuss> >>>> --- >>>> You received this message because you are subscribed to the Google Groups >>>> "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected] <>. >>>> For more options, visit https://groups.google.com/d/optout >>>> <https://groups.google.com/d/optout>. >>> >> >> >> <buffer system.PNG> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
