tag:blogger.com,1999:blog-8853820565211362966.post5999399108950599842..comments2019-03-02T19:34:58.633-05:00Comments on Scientific Instruments Using the TI MSP430: Tutorial 13a: Combining PeripheralsDavid Olsonhttps://plus.google.com/107270489816810364594noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-8853820565211362966.post-27031115816615198972011-07-26T14:48:34.813-04:002011-07-26T14:48:34.813-04:00Beretta & David!!
Great job on the MSP430 blo...Beretta & David!!<br /><br />Great job on the MSP430 blog, excellent detail and I followed everyone of post!<br /><br />please dont leave us hanging because I am down to this very last tutorial(so far) and it was posted back to Feb 2011, and it definitely looks like does not end there!<br /><br />you can just have a short update on your current events happening in your lives and let us know you still care about the MSP430 community =DGeorgehttps://www.blogger.com/profile/00445946675687981284noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-52477233369554108372011-06-28T14:30:04.846-04:002011-06-28T14:30:04.846-04:00That sounds like a great product-- I'll have t...That sounds like a great product-- I'll have to look at it. You're right in your assessment of its usefulness in data logging. <br /><br />General comment to everyone: I know a lot of people have written asking if I'm going to continue. The current plan is to do so, but I have a lot of things changing in my life right now that take priority. I do hope to get to the point where I'm able to return; thanks for your interest and patience!Davidhttps://www.blogger.com/profile/02144862918620225279noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-22174848552770470972011-06-26T13:37:39.563-04:002011-06-26T13:37:39.563-04:00Hi David,
Thank you very much for this resource. ...Hi David,<br /><br />Thank you very much for this resource. It has been really useful for me. I wanted to let you know about the following<br /><br />TI has released the MSP-EXP430FR5739 FRAM Experimenterâ€™s Board (http://focus.ti.com/docs/toolsw/folders/print/msp-exp430fr5739.html?DCMP=FRAM&HQS=Other+PR+fr57xx-pr-tf#Technical%20Documents) aat $29 and they currently have a 50% sale on it (http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/p/117134/416050.aspx#416050).<br /><br /><br />Due to the FRAM the read/write speeds are significantly faster and would definitely be a benefit when data-logging from sensors. Also it further reduces power consumptionsPChttps://www.blogger.com/profile/17774764882646072400noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-7210974418438914822011-06-10T22:59:57.279-04:002011-06-10T22:59:57.279-04:00Get your Dissertation finished. That's a toug...Get your Dissertation finished. That's a tough piece or work. Thanks for taking the time to respond.<br /><br />Take care,<br /><br />JonJonnoreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-84986671306971129462011-06-10T13:57:44.372-04:002011-06-10T13:57:44.372-04:00Goodness, it has been a while, hasn't it...
Y...Goodness, it has been a while, hasn't it...<br /><br />Yes, I do intend to continue, though it's been put on hold for a while as I am buried in writing my Dissertation. Thank you, everyone who has commented, for your encouragement. Thanks for being patient as I work things out on this end.Davidhttps://www.blogger.com/profile/02144862918620225279noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-84752714880892140452011-06-06T01:55:04.500-04:002011-06-06T01:55:04.500-04:00Any plans to continue the blog? This is a great r...Any plans to continue the blog? This is a great resource I am really missing.Jon Thornhamnoreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-10237163435642074592011-05-13T14:26:58.785-04:002011-05-13T14:26:58.785-04:00Hi David,
Thanks for the excellent blog, this pos...Hi David,<br /><br />Thanks for the excellent blog, this post has inspired to make a nice LC meter with my launchpad.<br /><br />I wanted to point out what I believe to be an error in your error calculation. Specifically the dC/dF calculation. Here's how I think you obtained the derivative.<br /><br />C=t/R * 1/ln(1/F)<br />x=1/F<br /><br />For this derivative t/R is a constant so we are only interested in the second term. Using the reciprical derivative rule<br /><br />Dx 1/ln(x)= -(1/x)/(ln(x))^2<br /><br />Substituting x=1/F back our final result would be<br /><br />dC/dF=-t/(R(ln(1/F))^2) * 1/(1/F)<br /><br />Which is the result you obtained. The problem is that as soon as you make the substitution x becomes a function of F, and since you're looking for the derivative of C with respect to F and not x the chain rule applies. The general derivative of the ln function is<br /><br />Dx ln(x(F))=x'(F)/x(F)<br /><br />Applying this definition we find <br /><br />Dx ln(1/F)= -F^-2/F^-1= -F/F^2= -1/F<br /><br />With this in tow, using the reciprical rule again we find that dC/dF is <br /><br />dC/dF= t/R * (1/F)/(ln(1/F))^2<br /><br />Which is what I believe to be the correct answer. I could very well be wrong but I thought I would bring it up and see what you thought.<br /><br />With the corrected derivative, you'll find the effect of F on the error is greater then you originally thought.<br /><br />I confirmed the general derivative of the ln function in my edwards & penney textbook. <br /><br />Thanks again, for the inspiration.<br /><br />JorgeJorge Garciahttp://support@cadsoftusa.comnoreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-64559855838302153412011-05-02T04:19:44.036-04:002011-05-02T04:19:44.036-04:00hi David, ur blog has been really helpful. i am to...hi David, ur blog has been really helpful. i am totally new to microcontroller.. anyway could please explain on ur next lesson how to use Timer to generate PWM..<br /><br /><br />thank u very muchsanjuhttps://www.blogger.com/profile/14453788538996870679noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-14118864555377959082011-04-27T11:30:08.543-04:002011-04-27T11:30:08.543-04:00I'm glad it's been helpful. I'm sorry...I'm glad it's been helpful. I'm sorry it's been slow in progressing recently, and will start adding more soon.<br /><br />I'm not exactly certain about boot-loader code or not, but there are options that you can play with in the CCS compiler. I know, for example, that it optimizes libraries like stdio to save room (an example I'll share when I do a post on UART etc.), and I would imagine it's possible to optimize the compiler further.<br /><br />Another option is to get one of the newer G2xx devices that has more memory and similar capability to the chip you're using now- you might be able to snag a couple of free samples to try out!Davidhttps://www.blogger.com/profile/02144862918620225279noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-49394047661008836952011-04-25T09:50:04.393-04:002011-04-25T09:50:04.393-04:00Hi,
I find this blog useful. I have a question ab...Hi,<br /><br />I find this blog useful. I have a question about the Launchpad kit: do you know if the CCS-4 debugger dumps the bootloader code along with the user program onto the MSP430xxxxx at debug time? I am running out of program space and I need every bit of space available.<br /><br />Thanks.<br />ABAnirbanhttps://www.blogger.com/profile/00285530012534090130noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-23692008577743976702011-02-21T15:42:32.975-05:002011-02-21T15:42:32.975-05:00Great to see another tutorial in the making. This ...Great to see another tutorial in the making. This blog has been by far the most helpful resource in teaching me how to work with the launchpad.Adamnoreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-66215394208089582272011-02-19T10:14:56.707-05:002011-02-19T10:14:56.707-05:00Busy, yes... but determined. =)Busy, yes... but determined. =)Davidhttps://www.blogger.com/profile/02144862918620225279noreply@blogger.comtag:blogger.com,1999:blog-8853820565211362966.post-65943335571270651932011-02-19T00:43:15.377-05:002011-02-19T00:43:15.377-05:00I'm so glad to see a new post from you! I was ...I'm so glad to see a new post from you! I was afraid you'd gotten too busy to continue your blog. Your posts have been a great resource for the stuff I've done with my msp430 chips.Mandeephttp://www.shergillgames.comnoreply@blogger.com