http://forums.leaflabs.com/topic.php?id=1345 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:21:24 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=1345#post-8253 Sat, 18 Feb 2012 08:52:54 +0000 gbulmer 8253@http://forums.leaflabs.com/ <p>olimexino -</p> <blockquote><p>sure everything zshen want to do could be done also with $0.80 PIC16F1503 (UART, 4 PWM channels, 12bit ADC on chip) </p></blockquote> <p>but that is only partly relevant. </p> <blockquote><p>but the topic says "want to learn and try the maple" :-)</p></blockquote> <p>In my experience, when someone asks a question, and adds they have little or no experience, it is as well to assume the question might be asking for a bit more help than a yes/no answer.</p> <p>I feel the question is about both hardware and software.<br /> We don't know what the project constraints are, or the development platform, so suggesting hardware without identifying development tools is offering an incomplete solution.</p> <p>zshen wrote</p> <blockquote><p>I am looking for a micro-controller for my project, and I don't have much programming background. But I am willing to learn. </p></blockquote> <p>I interpret that as a person asking for advice about a microcontroller with a relatively straightforward way to program it, with a high chance of success for someone with little or no experience. </p> <p>The enormous value of the Arduino is that it is easy to get started programming, and be successful using it. Also, it is more than adequate for a lot of projects. Plus, it is quite low cost. I have no commercial interest in someone using a specific microcontroller development board. So, until I get further information, I recommend something easy to use, that gives the greatest likelihood of success, and is low-cost.</p> <p>IMHO, if the funds are available, it might be quicker to do a project by learning to program using an Arduino for a few days (or more), and then try to use the target board, than begin with a harder to use target board.</p> <p>So one of my concerns is the difficulty of being successful with little experience. There are many threads on this forum from people using Maple with Windows; those users have problems uploading. There are several threads on this forum from people struggling to get the the OLIMEXINO-STM32 to work. IIRC several have spent days struggling to get started.</p> <p>So, I don't feel it is necessarily helpful to recommend a Maple, without knowing what the project is, what platform will be used for development, and any other constraints which apply. Hence, I feel it is most helpful to suggest approaches which, in general, are very likely to be successful, and give the poster the support to explore their problem and try to get a good, robust, approach.</p> <p>(Full disclosure: I do am not a member of LeafLabs or Olimex staff) </p> http://forums.leaflabs.com/topic.php?id=1345#post-8250 Sat, 18 Feb 2012 02:31:05 +0000 olimexino 8250@http://forums.leaflabs.com/ <p>sure everything zshen want to do could be done also with $0.80 PIC16F1503 (UART, 4 PWM channels, 12bit ADC on chip)</p> <p>but the topic says "want to learn and try the maple" :-) </p> http://forums.leaflabs.com/topic.php?id=1345#post-8235 Fri, 17 Feb 2012 18:35:10 +0000 gbulmer 8235@http://forums.leaflabs.com/ <p>zshen - what sort of rate do you need to do those tasks?</p> <p>I don't want to put you off a Maple, but everything you have requested can be done on an Arduino. </p> http://forums.leaflabs.com/topic.php?id=1345#post-8195 Tue, 14 Feb 2012 12:56:53 +0000 bubulindo 8195@http://forums.leaflabs.com/ <p>Yes... And much, much, much more. </p> <p>I find that the USB communication is not great for real time data transfer, but you can always use a fixed interval for the adc measurements or put a timestamp on the data. </p> http://forums.leaflabs.com/topic.php?id=1345#post-8194 Tue, 14 Feb 2012 12:53:40 +0000 zshen 8194@http://forums.leaflabs.com/ <p>I am looking for a micro-controller for my project, and I don't have much programming background. But I am willing to learn. Here are some questions about the maple programming software, just wonder if anyone can help.</p> <p>can the maple do these?<br /> 1. Select each ADC channel, read a voltage, store the data in an array in RAM.<br /> 2. Select each PWM channel, output a 50% duty factor square wave potential test waveform.<br /> 3. Transfer a block of data from RAM to the host PC.</p> <p>Thank you so much in advance. </p>