5 Replies Latest reply on Nov 13, 2013 4:53 PM by user_14586677

    RS-232/UART Hardware fix for CY8CKIT-001/030/050

    user_7880656

      In the following Kits :

         

      CY8CKIT-001
      CY8CKIT-030
      CYC8KIT-050
       

         

      There is a problem with Hardware Handshaking in that the CTS/RTS pins are swapped on the development kits.
      This is a hardware/PCB error on the circuit boards and can only be fixed by a wiring change.

      There are two workarounds to this problem :

         

      1) Don't use hardware handshaking, select software handshaking (3 wire protocol) only.

      2) Wire a DB-9 Female to DB-9 Male adaptor plug with the following pinout :

         

      2 -> 2
      2 -> 3
      7 -> 8
      8 -> 7

         

      regards,

         

      Tom Moxon
      www.moxon.com

         

      www.westmarkco.com

         

       

         



       

        • 1. Re: RS-232/UART Hardware fix for CY8CKIT-001/030/050
          user_7880656

          Correction: Only the CY8CKIT-001 has this error. The CY8CKIT-030/050 boards have been corrected.

             

          (I was looking at an older schematic....)

             

           

             

          thanks,
          Tom Moxon

          • 2. Re: RS-232/UART Hardware fix for CY8CKIT-001/030/050
            peter.taylor

             I'm a bit annoyed that I just spent several hours troublshooting my project when the problem is actually in the dev kit circuit board.  Why isn't this little "note" in the knowledge base??  And why do you have a typo in your fix (2 to 2 and 2 to 3)????  This should at the very least be noted on the main dev kit page.  I'm sick of having to sort through the thousands of forum posts for the "oh, by the way"s that cost me hours or even days of lost time.

            • 3. Re: RS-232/UART Hardware fix for CY8CKIT-001/030/050
              user_7880656

              @PeterT

                 

              I'm just the messanger here, so maybe we can have a ceasefire....

                 

              You are correct, Cypress should put that in the knowledgebase

                 

              (I don't work for Cypress - I'm just another user here...)

                 

              Also, unlike PSoCDeveloper, there is no "Edit" function on posts here,

                 

              so if you make a typo, you are stuck with it...

                 

              So I will correct that here :

                 

              There is a problem with Hardware Handshaking in that the CTS/RTS pins are swapped on the CY8CKIT-001
              kit. This is a hardware/PCB error on the circuit boards and can only be fixed by a wiring change.

              There are two workarounds to this problem :

                 

              1) Don't use hardware handshaking, select software handshaking (3 wire protocol) only.

              2) Wire a DB-9 Female to DB-9 Male adaptor plug with the following pinout :

                 

              2 -> 3
              3 -> 2
              7 -> 8
              8 -> 7

                 

              regards,

                 

              Tom Moxon
              http://www.patternagents.com

              • 4. Re: RS-232/UART Hardware fix for CY8CKIT-001/030/050
                peter.taylor

                 My appologies.  I thought, for some reason, you were representing Cypress.  Which means that Cypress is even more negligent than I thought.  Thank you for posting about the problem.

                • 5. Re: RS-232/UART Hardware fix for CY8CKIT-001/030/050
                  user_14586677

                  If you file a case pointing to this thread tool team will most likely update release

                     

                  notes. Just a thought.

                     

                   

                     

                       

                     

                  To create a technical case at Cypress -

                     

                   

                     

                  www.cypress.com

                     

                  “Support”

                     

                  “Technical Support”

                     

                  “Create a Case”

                     

                   

                     

                  You have to be registered on Cypress web site first.

                     

                   

                     

                  Regards, Dana.