RX71m SCI boot

Question

Hi, 
 can you please guide me how to update code of RX71m MCU using FTD(SCI boot) 
 is any operation manual/code sample available for that 
 what type of hardware connection i need to do? 
 What type of software interface i have to use ? 
 
 please suggest

JimB · Accepted Answer

1. Yes, no code needs to be implemented on the device to utilize the serial programming interface. 
 2. The image that you shared is for USB-boot, not SCI-boot. 
 3-7. Yes, select COM for SCI-Boot 
 Options for powering the board depends on the board design - if this is a Renesas board, power can be derived from USB or separate external connection.

AL_Renesas · Answer

Hello, 
 You can use as reference the application note below, that implements a SCI bootloader on RX140: 
 &Iota;t uses Xmodem protocol to transfer the image from the user's PC folder location to the internal flash of the RX. 
 https://www.renesas.com/en/document/apn/renesas-starter-kit-rx140-boot-loader-application-note 
 Also, on the link below, you can find the projectd for the bootloader and for the application on CS+: 
 https://www.renesas.com/en/document/scd/rx140-renesas-starter-kit-sample-code-cs-cc-rx?r=1618031 
 &Tau;he same idea can be implemented on RX71M. 
 Regards, 
 AL_Renesas

JimB · Answer

If I understand your question, you want to use the SCI-Interface boot mode of the device to program it? 
 
 In this mode, the RX71M device executes built-in firmware that adheres to a specific SCI communication protocol. There is no need for additional code for the MCU to operate in this mode. 
 The hardware configuration must conform to:

The software API is defined in the hardware U/M section 53.12: 
 
 This protocol is implemented in the PG-FP6 dedicated programmer, and by the RFP GUI programmer, and there are likely other implementations to be found by online search.

RX71m SCI boot

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