Writing Flash Memory in FR Family FR81S MCUs - KBA218673

Version 2

    Version: **

     

    Question:

    How do you write flash memory in the FR81S MCUs?

     

    Answer:

    The FR Family FR81S MCUs can be programmed with two serial writers; CAN MCUs can be programmed with one serial writer.

     

    1. Programming with Flash serial writer using SIO
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    2. Programming with PC serial writer using UART
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        Notes:  
      • The frequency of the crystal oscillator that can be specified for each type of microcontroller is limited.
      • For information on microcontrollers compatible with the PC serial writer, contact Cypress Technical Support.
    3. Programming with Flash serial writer via CAN 

      When programming with a serial writer (such as Yokogawa Digital Computer Corporation (YDC) products) via CAN to Flash MCU, a boot program (from YDC) needs to be programmed to the Flash MCU; this is also possible using CAN.