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Read-Only Author Gerardo Diez Posted 18-May-2009 12:57 GMT Toolset ARM |  RS232 Code Gerardo Diez IÂ'm trying to use serial port in MCB2900 with LPC2919 processor and I couldnÂ't make scanf function to receive data from PC. Is there some code there for my target? IÂ'm looking for it but i havenÂ't seen anything |
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Read-Only Author Andy Neil Posted 18-May-2009 13:19 GMT Toolset ARM |  i haven't seen anything Andy Neil Oh, come on: nothing - you can't be serious? What about these: http://www.keil.com/support/man/docs/mcb2900/mcb2900_examples.htm ? If that's not what you want, then don't just say, "i haven't seen anything" - say what, precisely, it is that you've found so far, and why that doesn't meet your requirements. Otherwise, you won't be taken seriously. Hint: before messing with scanf (which has many well-known "issues"), are you sure that your basic RS232 transmit and receive codes are working? |
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Read-Only Author Gerardo Diez Posted 18-May-2009 20:28 GMT Toolset ARM |  RE: i haven't seen anything Gerardo Diez Nothing about scanf functions sorry |
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Read-Only Author Andy Neil Posted 18-May-2009 20:33 GMT Toolset None |  scanf Andy Neil scanf is a standard 'C' library function - so any 'C' textbook will do! Also search the forum for "scanf" for the many previous discussions... But, again, have you tested your basic serial IO before moving on to scanf - or anything else? |
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Read-Only Author Gerardo Diez Posted 18-May-2009 21:21 GMT Toolset None |  RE: scanf Gerardo Diez Printf is ok, but i am trying to receive data from PC and i couldnÂ't with scanf |
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Read-Only Author Andy Neil Posted 18-May-2009 23:45 GMT Toolset None |  RE: i couldn't with scanf Andy Neil But can you do it without scanf? Obviously, if the basic serial reception isn't working, then nothing higher up the chain - like scanf - can possibly work! And, again, scanf has a whole pile of issues all of its own - have you done that search yet? |
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Read-Only Author Gerardo Diez Posted 19-May-2009 11:51 GMT Toolset None |  RE: i couldn't with scanf Gerardo Diez Yes, i have made the scanf code search and i found some, but any code about LPC2919. I have found another processors code with scanf function. I think i have to modify retarget.c file to use scanf. I follow the others target code but in my case does not work. |
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Read-Only Author Andy Neil Posted 19-May-2009 12:03 GMT Toolset None |  i have made the scanf code search Andy Neil And what was the consensus about whether scanf was a good thing to use...? eg, see the 1st reply in this thread: http://www.keil.com/forum/docs/thread7600.asp |
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