http://forums.leaflabs.com/topic.php?id=1535 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:07:32 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=1535#post-10133 Sun, 08 Apr 2012 20:46:01 +0000 gbulmer 10133@http://forums.leaflabs.com/ <p>Please give some more information explaining what <em>.".. so that it can be worked under 3v3 and 5v"</em> means.</p> <p>For example, does it mean:<br /> - can be powered by 5V<br /> - can do an ADC conversion from voltages between 0 an 5V<br /> - can take input voltages at 5V<br /> - can drive external low-current loads at 5V<br /> - can drive external high-current loads at 5V<br /> - can interface with 5V TTL Serial<br /> - can interface with 5V SPI<br /> ... etc .. </p> http://forums.leaflabs.com/topic.php?id=1535#post-10132 Sun, 08 Apr 2012 20:41:08 +0000 mikep 10132@http://forums.leaflabs.com/ <p>Hi there,<br /> I am not sure what you are trying to accomplish.</p> <ul> <li>The actual STM32F103RBT6 processor used on the Maple does only take 3.3v as power supply. 5V is too much and will damage the processor, but the Maple board has already the necessary 3.3V voltage regulators on the board</li> <li>if you need to interface the board with 5V TTL components, make sure you use pins that are 5V-tolerant (see here in the last column called "5V?": <a href="http://leaflabs.com/docs/hardware/maple.html#maple-gpios" rel="nofollow">http://leaflabs.com/docs/hardware/maple.html#maple-gpios</a> )</li> </ul> <p>Hope that helps,<br /> Mike </p> http://forums.leaflabs.com/topic.php?id=1535#post-10128 Sun, 08 Apr 2012 12:13:43 +0000 wattsohn 10128@http://forums.leaflabs.com/ <p>Hey guys,</p> <p>I finally decided to jum into the Maple platform. Now<br /> for my project the µC(32bit ARM Cortex-M3 of the Maple)<br /> should be able to work under 3v3 and 5v. </p> <p>How can I extend it (µc) so that it can be worked under<br /> 3v3 and 5v? Thx for any help </p>