Writing Flash Memory in FR Family FR81S MCUs - KBA218673

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Translation - Japanese: FRファミリFR81S MCUのFlashメモリへの書込み　—　KBA218673 - Community Translated (JA)

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
   
2. Programming with PC serial writer using UART
   
     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.