http://forums.leaflabs.com/topic.php?id=14266 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:05:17 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29563 Wed, 11 Sep 2013 19:15:34 +0000 ala42 29563@http://forums.leaflabs.com/ <p>That was just for the CPU. </p> http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29562 Wed, 11 Sep 2013 18:34:01 +0000 crenn 29562@http://forums.leaflabs.com/ <p>Where did you buy a Maple Mini for $3.75? That's a bargain price.... </p> http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29561 Wed, 11 Sep 2013 18:13:56 +0000 pyrohaz 29561@http://forums.leaflabs.com/ <p>Hey, thanks all for the replies, in the end I just ended up purchasing another Maple Mini though for $3.75, I might aswell get one of them! Cheers! </p> http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29541 Tue, 10 Sep 2013 17:34:34 +0000 gbulmer 29541@http://forums.leaflabs.com/ <p>spas - Thanks for that link. Nice spot.<br /> AFAICT, they aren't part of the 20% sale, but are part of RS's price comparison system, and will likely be that price when the sale ends.</p> <p>It's also worth noting that the STM32F103RBT7 is cheaper than the STM32F103RBT6, and is not in any sale:<br /> <a href="http://uk.rs-online.com/web/p/microcontrollers/7239022/" rel="nofollow">http://uk.rs-online.com/web/p/microcontrollers/7239022/</a><br /> The T7 temperature range is slightly better than the T6 too (–40 to 105 °C vs –40 to 85 °C).<br /> (I have sometimes thought about trying to get one to work in boiling (distilled) water, just as a demo :-)</p> <p>I'd be tempted to try for a STM32F103RC, which has 2x Flash, more than 2x RAM, 2x timers, dual DAC, ... , and is cheaper than the STM32F103RBT6.</p> <p>However, ala42's $3.75 including P&amp;P is impressive! </p> <p>Beats <a href="http://www.futureelectronics.com/en/Search.aspx?dsNav=Ntk:PartNumberSearch%7cstm32f103*%7c1%7c,Ny:True,Ro:0,Ns:P_Price1%7c101%7c1%7c,Nea:True,N:587-4294880381-4294932687">Future Electronics</a> who are usually very competitive.</p> <p>BTW - pyrohaz, which country do you live in? </p> <p>Maybe I should finish my Dual-In-Line board, like a giant Maple-mini, for the 64pin STM32F?-) </p> http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29539 Tue, 10 Sep 2013 15:07:09 +0000 ala42 29539@http://forums.leaflabs.com/ <p>$3.75 including shipment on ebay from china, if you can wait for the shipment ...<br /> <a href="http://www.ebay.com/itm/1PCS-original-LQFP-64-STM32F103RBT6-STM32F103-LQFP64-128Kbytes-ARM-ST-/370749422784?pt=LH_DefaultDomain_0&amp;hash=item5652633cc0" rel="nofollow">http://www.ebay.com/itm/1PCS-original-LQFP-64-STM32F103RBT6-STM32F103-LQFP64-128Kbytes-ARM-ST-/370749422784?pt=LH_DefaultDomain_0&amp;hash=item5652633cc0</a> </p> http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29538 Tue, 10 Sep 2013 14:30:41 +0000 spas 29538@http://forums.leaflabs.com/ <p>Try this link<br /> <a href="http://uk.rs-online.com/web/c/?searchTerm=stm32f103r&amp;sra=oss&amp;r=t" rel="nofollow">http://uk.rs-online.com/web/c/?searchTerm=stm32f103r&amp;sra=oss&amp;r=t</a> </p> http://forums.leaflabs.com/topic.php?id=14266&page=2#post-29536 Tue, 10 Sep 2013 09:59:15 +0000 gbulmer 29536@http://forums.leaflabs.com/ <p>spas - I have had a look at RS, specifically at the microcontrollers which they say are on sale:<br /> <a href="http://uk.rs-online.com/web/c/semiconductors/processors-microcontrollers/microcontrollers/?searchTerm=price-reduction-sept13_uk&amp;searchType=Offers" rel="nofollow">http://uk.rs-online.com/web/c/semiconductors/processors-microcontrollers/microcontrollers/?searchTerm=price-reduction-sept13_uk&amp;searchType=Offers</a></p> <p>The <strong>only manufacturers</strong> with MCU's on sale are Atmel and NXP, but not ST Micro. The sites web-page-ads are a bit confusing </p> http://forums.leaflabs.com/topic.php?id=14266#post-29515 Mon, 09 Sep 2013 13:00:07 +0000 spas 29515@http://forums.leaflabs.com/ <p>Hi,<br /> If the Micro is stuffed what else has blown? It could be that after you have totted up damage list it may be easier and cheaper to purchase another one. However, RS have a 20% of sale at the moment and the micro is one of those in the sale.</p> <p>Best of luck </p> http://forums.leaflabs.com/topic.php?id=14266#post-29514 Mon, 09 Sep 2013 08:33:59 +0000 pyrohaz 29514@http://forums.leaflabs.com/ <p>Hey Crenn,</p> <p>I've got the rev 5. What would be the best way for me to test where the fault it? </p> http://forums.leaflabs.com/topic.php?id=14266#post-29489 Sat, 07 Sep 2013 21:41:19 +0000 crenn 29489@http://forums.leaflabs.com/ <p>Replacing the main IC should be too hard, if you know the primary IC is burnt out, cut off the legs, you don't need to remove the IC whole, that way you reduce the risk of causing a pad to lift when de-soldering and can just swipe then clean your soldering iron tip from those legs.</p> <p>The 30mV could be other factors such as capacitors which have shorted out. Which revision of the maple do you have? </p> http://forums.leaflabs.com/topic.php?id=14266#post-29487 Sat, 07 Sep 2013 15:41:23 +0000 pyrohaz 29487@http://forums.leaflabs.com/ <p>To my utter dismay, it seems that i've managed to burn out my processor or so it would seem. I was attempting to run my maple off a 12v lipo at which I connected it to the VIn and GND and the magic IC smoke arose and now it doesn't work at all! After replacing the IC's pin for pin with AMS1117-3.3 (only regs i've got on me), it still doesn't work. Looking at the voltage present at VDDA and VCC shows around 30mV, would replacing the main IC be a hard task? I wouldn't mind buying another maple as a last resort (i've already got 2 Maples and a maple mini!) though i'm not the wealthiest of people!</p> <p>Cheers, </p>