http://forums.leaflabs.com/topic.php?id=13456 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:20:21 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=13456#post-28653 Sun, 01 Sep 2013 02:15:33 +0000 joyzhou 28653@http://forums.leaflabs.com/ <p>to ala42 and gbulmer:<br /> Many thanks for your explanations.<br /> I downloaded the hardware design file - maplemini.pdf.<br /> The MCU type is STM32F103CBT6, without 'R'.<br /> It is a mistake in the main page. </p> http://forums.leaflabs.com/topic.php?id=13456#post-28620 Fri, 30 Aug 2013 04:25:28 +0000 gbulmer 28620@http://forums.leaflabs.com/ <p>As you can see at the manufacturer's web site:<br /> <a href="http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1031/LN1565" rel="nofollow">http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1031/LN1565</a><br /> all 4 characters have a meaning</p> <p>STM32F103pfst<br /> p is the number of pins, as ala42 has explained<br /> f is the flash and RAM size, and the 'density group', which means how many peripherals, and what type of peripherals<br /> s is the surface mount package type, LQFP, BGA, WLCSP<br /> t is the temperature range the part is specified to operate at</p> <p>STM32F103R8T6 = 64pin (R) and 64KiB Flash/20KiB RAM (8), and is 'Medium-Density' (also due to the 8), LQFP (T), Industrial temperature range, –40 to 85 °C. (6)<br /> STM32F103REY7 = 64pin (R) and 512KiB Flash/64 KiB RAM, and is 'High-Density' which has more peripherals than the R8, and has DAC &amp; SDIO (E), WLCSP64 'wafer level' package (Y), 7 = Industrial temperature range, –40 to 105 °C (7)</p> <p>The part numbering scheme is documented in the Part Numbering section on the datasheet, e.g.<br /> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00191185.pdf" rel="nofollow">http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00191185.pdf</a> </p> http://forums.leaflabs.com/topic.php?id=13456#post-28618 Fri, 30 Aug 2013 03:59:43 +0000 ala42 28618@http://forums.leaflabs.com/ <p>F103C - 48 pins<br /> F103R - 64 pins<br /> F103V - 100 pins<br /> F103Z - 144 pins </p> http://forums.leaflabs.com/topic.php?id=13456#post-28616 Thu, 29 Aug 2013 20:19:42 +0000 joyzhou 28616@http://forums.leaflabs.com/ <p>Hi, everyone!<br /> I have a problem on the MCU type of maple_mini.</p> <p>(1) The main web page of leaflabs.com<br /> <a href="http://leaflabs.com/" rel="nofollow">http://leaflabs.com/</a><br /> says that maple_mini :<br /> uses STM32F103RCBT6: a 32-bit ARM Cortex-M3 microprocessor at 72Mhz......</p> <p>(2)<code></code>Recommended Reading'' section of this page<br /> <a href="http://leaflabs.com/docs/hardware/maple-mini.html#maple-mini-stdocs" rel="nofollow">http://leaflabs.com/docs/hardware/maple-mini.html#maple-mini-stdocs</a><br /> suggests<br /> <code></code>STMicro documentation for **STM32F103CB** microcontroller:......''</p> <p>(3) It seems there are only 4 chars after '103'.</p> <p>(4) I have a maple_mini with STM32F103CBT6 on it. But it's not bought from an official store.</p> <p>(5) I guess it should be STM32F103CBT6 without 'R'.</p> <p>I am going to try other developping tools such as coocox, arm-gcc, hoping more free RAMs available for my codes, so the accurate type is needed.</p> <p>Thanks and regards. </p>