Hello, Yamaha Tenere 2020 Mileage Correction Programmer( renesas R5F10DMFJ )

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  • fickerel
    Newbie
    • Apr 2025
    • 6

    #1

    Hello, Yamaha Tenere 2020 Mileage Correction Programmer( renesas R5F10DMFJ )

    Hi all,

    I don't currently have any equipment to read this chip but just looking to do a one off change on my own bike after I've swap the engine.

    Can anyone recommend a cheap setup to read read / write this chip? Bonus points if there is no soldering required.

    Thanks
  • fickerel
    Newbie
    • Apr 2025
    • 6

    #2
    I've found someone has kindly provided the pinout so it looks like it can be done in circuit.

    I also have the algorithm for Yamaha. Mileage * 10 -> hex is least significant byte order and 32 bit wide -> check sum is a sum of the bytes, also 32 bits wide

    So I just need a way to read and write the chip now, any suggestions greatly welcome

    PINS.jpg
    Last edited by fickerel; 28 April, 2025, 14:56.

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    • fickerel
      Newbie
      • Apr 2025
      • 6

      #3
      I've gone for an offical Renesas e2 programmer which should do me for this one-off.

      I was trying to buy an orange5 but couldn't figure out if any of them came with the correct software / licence for renesas RL78

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