http://forums.leaflabs.com/topic.php?id=1366 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:20:51 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=1366#post-8290 Mon, 20 Feb 2012 19:00:44 +0000 gbulmer 8290@http://forums.leaflabs.com/ <p>Cyclegadget - the <code>... #define B00000001 (1) ...</code> was an old fix which is no longer needed.</p> <p>In the past, the C/C++ compiler only supported three ways to write literal binary numbers: base 10, base 8 (0...), and base 16 (0x...).</p> <p>Sometimes it is easier to understand what is happening when the number is written in base 2, so those names were created to help make those cases easier to understand.</p> <p>Now, GNU's C/C++ compiler supports writing binary numbers using 0b00..., so those old names aren't needed any more.<br /> IMHO, save yourself effort, and use the binary number. </p> http://forums.leaflabs.com/topic.php?id=1366#post-8288 Mon, 20 Feb 2012 17:33:15 +0000 Cyclegadget 8288@http://forums.leaflabs.com/ <p>Thanks bubulindo for the reply.</p> <p> The code I have started with is here: <a href="https://github.com/teabot/McpDigitalPot" rel="nofollow">https://github.com/teabot/McpDigitalPot</a></p> <p> I got it to work with an Arduino Uno.</p> <p>I want to take your guys advice about:<br /> #define B00000000 (0)<br /> #define B00000001 (1)<br /> #define B00000010 (1)<br /> #define B00000100 (1)</p> <p>and:<br /> Still #define in wirish\bit_constants.h </p> <p>But I am not sure how or where yet. I have been using the "Compile and Error" method" to step through finding problems with the .h and .cpp files. I have started the quest with fixing data types and later, I will have to fix the spi to hardware spi issue.</p> <p> I am trying to at least do my part first before asking for more help. Some of it has not been hard but, I have just started. </p> http://forums.leaflabs.com/topic.php?id=1366#post-8284 Mon, 20 Feb 2012 13:04:50 +0000 bubulindo 8284@http://forums.leaflabs.com/ <p>Still #define in wirish\bit_constants.h </p> http://forums.leaflabs.com/topic.php?id=1366#post-8283 Mon, 20 Feb 2012 12:59:25 +0000 Cyclegadget 8283@http://forums.leaflabs.com/ <p>Thank you for the reply and the simple fix. If I am successful, I will share my files. </p> http://forums.leaflabs.com/topic.php?id=1366#post-8282 Mon, 20 Feb 2012 12:55:16 +0000 gbulmer 8282@http://forums.leaflabs.com/ <p>Put a zero, 0, in front of the things that look a bit like numbers.<br /> So B00001100 becomes 0B00001100.<br /> I find it easier to read using a lower case 'b', and so would be 0b00001100.</p> <p>If you have *all* of the code available, I think it will compile correctly anyway. I think it used to be there was a set of defined names, e.g.<br /> <pre><code>#define B00000000 (0) #define B00000001 (1) #define B00000010 (1) #define B00000100 (1)</code></pre> <p>but it might be an <code>enum</code> or <code>const</code>'s now. </p> http://forums.leaflabs.com/topic.php?id=1366#post-8279 Mon, 20 Feb 2012 12:34:49 +0000 Cyclegadget 8279@http://forums.leaflabs.com/ <p>I am trying to port the MCP2451 spi digital pot to the maple. I am using Notepad++ to edit my .h and .cpp files. I am gradually getting closer. I have got to this piece of code in the .h and I am not sure what the proper way is to convert these commands. I think it may need to be specified as Hex but, I am not sure. I just need to change the B00000000 parts.</p> <p>Please help,<br /> Mark</p> <p>( const static uint8 kADR_WIPER0 = B00000000;<br /> const static uint8 kADR_WIPER1 = B00010000;</p> <p> const static uint8 kCMD_READ = B00001100;<br /> const static uint8 kCMD_WRITE = B00000000;</p> <p> const static uint8 kADR_VOLATILE = B00000000;<br /> const static uint8 kADR_NON_VOLATILE = B00100000;</p> <p> const static uint8 kTCON_REGISTER = B01000000;<br /> const static uint8 kSTATUS_REGISTER = B01010000;) </p>