7 Replies Latest reply on Apr 13, 2020 7:26 PM by GaneshD_41

    Programming CY8C4125AXI-S433

    hesc_1314511

      Hello, I am programming CY8C4125AXI-S433 with KitProg3 (CMSIS-DAP/BULK/0B0B0F3C01346400, but only with 3.3V not 5V.

      Can you help me?

      Thanks

      Henry

        • 1. Re: Programming CY8C4125AXI-S433
          GaneshD_41

          Hi Henry,

           

          Can you please check the schematic of your board once? You can use the reference schemtic for cross check:

           

          https://www.cypress.com/documentation/development-kitsboards/cy8ckit-041-41xx-psoc-4100s-capsense-pioneer-kit

           

          Or, if you can attach the schematic we can check at our side.

           

          Thanks

          Ganesh

          • 2. Re: Programming CY8C4125AXI-S433
            NoriakiT_91

            Henry,

             

            Which KitProg3 are you going to use?

            The KitProg2/KitProg3 hardware on a Prototyping Kits has a diode to provide a target power from the VBUS.  For example, the CY8CKIT-149 "PSoC 4100S Plus Prototyping Kit" has a schottkey D1 as following snapshot.

             

            GS004694.png

             

            If you want to use a different target voltage, you must remove this diode at first.

             

            The details are described in the Kit's Users Guide document like following image.

             

            GS004693.png

             

            Anyway, why are you going to use KitProg3 instead of KitProg2 for CY8C4125AXI-S433?

             

            Regards,

            Noriaki

            • 3. Re: Programming CY8C4125AXI-S433
              AashitaR_11

              Hi Henry,

               

              Adding on to Noraiki, the KitProg 3 can provide the target voltage of 3.3 V.

              You can check for the KitProg 3 schematics in the attached file.

               

              Thanks and Regards,

              Aashita

              • 4. Re: Programming CY8C4125AXI-S433
                hesc_1314511

                hello,

                I am using KitProg3. CMSIS-DAP Version 2.0.0. Firmware Version 1.01.158. Hardware Id 01, it's I take from CY8CKIT-145-40XX PSoC 4000S.

                It have the +5V from USB, I can't regulate to 3.3V

                Can you help me?

                Thanks

                Henry

                • 5. Re: Programming CY8C4125AXI-S433
                  GaneshD_41

                  Hi Henry,

                   

                  The Kitprog3 from CY8CPROTO-062-4343W regulates the voltage to 3.3. volts. Where the Kitprog2 from the CY8CKIT-145-40XX kit uses 5 volts directly from the bus as VTARG. Can you please tell us which Kitprog3 you are using?

                   

                  1. Also, please tell us how you are connecting the Kitprog to the PSoC board? Are you powering the PSoC externally and trying to program?

                  How are yo actually switching the power supplies between 3.3volt and 5 volts?

                  2. If possible can you please attach the image of your set-up? also the schematic of your board? It will be easy for us to debug the issue with schematic.

                   

                  Thanks

                  Ganesh

                  • 6. Re: Programming CY8C4125AXI-S433
                    hesc_1314511

                    I attach image of programmer

                     

                     

                    I take the programmer from it

                     

                     

                     

                     

                     

                    the question is, why I am programming it by 3.3V and not 5V, in data sheet there is not specificy about it, and how can I change USB 5V fixed voltage of my programmer, I use this because Miniprog3 is very expensive

                    Thanks

                    Henry

                    • 7. Re: Programming CY8C4125AXI-S433
                      GaneshD_41

                      Hi Henry,

                       

                      I understood your query.

                       

                      The VCCD pin of the device is the output of internal regulator. So the VCCD pin should not be connected to the power supply. Also, the decoupling capacitor on the VCCD pin shold be 0.1uF for the device family that you are using. Please refer page number 13 of the device datasheet for the information about decoupling capacitor.

                       

                      https://www.cypress.com/file/230626/download

                       

                      So please remove 5volt supply connection on the VCCD pin and connect 0.1uF decoupling capacitor instead of 1uF decoupling capacitor.

                       

                      Hope this solves your issue !

                       

                      >>"and how can I change USB 5V fixed voltage of my programmer."

                      --> As Noriaki mentioned in response#2, you can remove the diode connection between VBUS and VTARG. In this case the Kitprog will not power the psoc that you are going to program.

                       

                      Thanks

                      Ganesh