http://forums.leaflabs.com/topic.php?id=122 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:06:25 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=122#post-760 Wed, 18 Aug 2010 15:02:44 +0000 poslathian 760@http://forums.leaflabs.com/ <p>Soon enough we will be releasing the Maple Native, based on the stm32f103ZE, which has substantially more pins (144 pin package, with ~80+ GPIO's broken out, Im not sure the exact number). You can also combine two maples, communicating over i2c, spi, or serial, if you have a large project that warrants it. Sounds like a cool project you have, keep us posted! </p> http://forums.leaflabs.com/topic.php?id=122#post-756 Tue, 17 Aug 2010 22:18:08 +0000 librae8226 756@http://forums.leaflabs.com/ <p>Hey poslathian,<br /> Thank U for your patient answer!</p> <p>I think perhaps I need to do something more on software developing rather than just considering about the hardware itself~</p> <p>Of course yes about introducing my recent project,<br /> I am neaarly graduate from college, and so, a great job is waiting for me that I would finish my graduation project.</p> <p>The project I am falling into is a sim Mars Rover, which base on a SUV(Sport Utility Vehicle), and drived by a STM32 core.<br /> Mainly to sample and process images, get GPS data, probe environment with ultrasonic, and collect some other data info, then after a simple process, send them to a workstation with a wireless device.</p> <p>It confused me some moments ago that the functions above I need to finish is a little difficult with maple, so I come up with a post.</p> <p>Now I think it maybe more clearly to me with what I should do~</p> <p>Thanks~ </p> http://forums.leaflabs.com/topic.php?id=122#post-751 Tue, 17 Aug 2010 14:10:57 +0000 poslathian 751@http://forums.leaflabs.com/ <p>Most of the stm32 flavors in the 64 pin package are pin compatible, so you can drop in some of the other parts. I think there is a higher density 64k ram, 512k flash stm32 part out now/soon that we have played with as a drop in replacement on maple. </p> <p>In terms of pin conflicts, there are many copies of everything. For example, if UART1 is conflicting with PWM4, then cant you just use UART2 or PWM6...or something. Or have you already designed a shield? Or have you consumed all of the UART's/PWMS/other resources? </p> <p>Check the silkscreen on the front and back of maple for more info of the various pins, there are several uarts/pwms/spi/i2c/timers scattered in many locations. </p> <p>Could you describe your application more? </p> http://forums.leaflabs.com/topic.php?id=122#post-748 Sun, 15 Aug 2010 09:17:26 +0000 librae8226 748@http://forums.leaflabs.com/ <p>I've noticed The Maple Native, by comparison, in producting such as Quadkopter, I prefer maple rather than its native version because of its size ^_^<br /> On the contrary, if I need to do try some experiment or test some devices, for instance, servo test, I would use product as maple native.</p> <p>I really want to acquire both their advantages ~</p> <p>Could I change someting so that I can use a STM32F103VCT6 on maple board ? </p> http://forums.leaflabs.com/topic.php?id=122#post-747 Sun, 15 Aug 2010 04:53:59 +0000 librae8226 747@http://forums.leaflabs.com/ <p>In other words, can I modify a little in the sch，use 100pins for 64pins?<br /> How much does it need to change in the other electronic connections in order not to reduce the board's function?<br /> Thank! </p> http://forums.leaflabs.com/topic.php?id=122#post-746 Sat, 14 Aug 2010 22:01:18 +0000 librae8226 746@http://forums.leaflabs.com/ <p>Dear leaflabs,<br /> Very happy to see such a nice project!</p> <p>I am now playing with a borad base on STM32F103RBT6. While I am driving some of the hardware modules to work at the same time, I find there's a little problem with function conflicts.</p> <p>64 pins is not that easy to use, we should consider much about our purpose so that it wouldn't go into a bad pin conflict.<br /> That is, I want to use TIM1_CH4 to output PWM waveform and use UART1 in the meantime, it's impossible. A change of pin use is needed.<br /> Could mapple process well?<br /> Or can we use VBT6 or VET6 to enhance mapple's strength, as a suggestion?</p> <p>I am in China and I find there almost nobody knows mapple.</p> <p>Hope I could do something here to popularize mapple, a nice project.</p> <p>Nowadays I'm considering about whether I bring in some 100pins or 64pins to use mapple，any suggestion?</p> <p>best regards!<br /> and HUGE support for mapple!</p> <p>Librae </p>