Hello,
I am currently working with the RA2E1 MCU family and am in need of documentation that outlines the flow for using UART or SWD to program and erase the flash memory.
Could you kindly direct me to the relevant documentation or resources that provide a comprehensive guide on the Flash Serial Programming process for the RA2E1 MCU family? Your assistance in this matter would be greatly appreciated.
Thank you for your time and support.
Best regards, Mario
The specification of RA2E1 boot firmware which has a serial programming interface to send and receive flash control commands is this:
https://www.renesas.com/us/en/document/apn/system-specifications-standard-boot-firmware-ra2-application-note
On RA2E1 the serial programming is supported by 2-wire UART only:
However you do not need to go through the documentation, the Renesas Flash Programmer is an easy way to interact with the device in serial programming.
1) Power up the device and connect the UART9 pins of RA2E1 with a USB-to-UART converter to your PC.
2) These are the pins the support serial programming in UART boot mode:
3) The MD pin should be held to low. If you have the FPB-RA2E1 this can be done by placing a jumper on J7.
4) Open Renesas Flash Programmer and select the correct COM port. Press reset button on the device and then connect on RFP.
5) The device is now in boot mode.
Let me know if you have any questions.
Regards
thank you very much, this file is exactly what I need!
Mario