3 Replies Latest reply on Feb 11, 2015 1:28 AM by user_1377889

    UART and debugger questions/problems

    user_464204185

      Hello all,

         

      I am using CY8CKIT-050. I built a simple UART project. However I have encountered two hurdles:

         

      1) UART Tx is sending garbage. In the attached project I am trying to parse a known string, and send the parts of it to the remote com. Problem is when the string gets parsed the known good data strings UTCtime, Latitude, Longitude(verified in debug mode) is sending out as garbage which appears to be even longer in size then the declared size of the char arrays. There is no problem with sending out known static string, such as original sting or some other constant value.

         

       

         

      2) The values of the char variable LatitudeNS changes as the sorting progresses (from 'N' right after correct sorting to '1' right before the transmitting out). The weird part it changes in the place of the code that has nothing to do with it. Right after change 1 is identified by red color in the debugger. 

         

      What does the red color of variable in debug mode identify? Recently changed/accessed value?

         

      Couple of things about these two things - I realize that they must be very basic and I am missing something very trivial or there is an explanation to this that makes complete sense. However I am failing to grasp it. Please help.