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vikas Nagpal
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vikas Nagpal
Asked: September 2, 2022In:
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I’ve configured MCU Boot in FSP3.8.0 to use external QSPI for the secondary slot which works when not coded. Still, if I enable ECISE encryption in RASC and put an coded image in the secondary slot in QSPI, MCU Boot ...Read more

I’ve configured MCU Boot in FSP3.8.0 to use external QSPI for the secondary slot which works when not coded. Still, if I enable ECISE encryption in RASC and put an coded image in the secondary slot in QSPI, MCU Boot will tell me that both the primary and secondary images aren’t valid. I’m encrypting with the python image tool using the test keys without any error from the tool. Does anyone have any ideas?

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ecisemcumicrocontrollerqspira4m3renesasRenesas Microcontroller
  1. Alex thomas

    Hi, What have you got the heap set to in the BSP settings? For ECIES more heap is needed than just ECC and AES along. Try 0x1000 and see if it works( doesn't need to be this large but reduce it once it's working). If you still have problems let me know and I'll put a demo together.

    Hi,

    What have you got the heap set to in the BSP settings? For ECIES more heap is needed than just ECC and AES along. Try 0x1000 and see if it works( doesn’t need to be this large but reduce it once it’s working).
    If you still have problems let me know and I’ll put a demo together.

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Anonymous
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Anonymous
Asked: July 25, 2022In:
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I have noticed that e2studio uses the term “simple SPI” for the SCI peripherals.  I am setting up a new board where I need two SPI connections for my RA4M3 board.  One to some motor drivers and one to non-QSPI ...Read more

I have noticed that e2studio uses the term “simple SPI” for the SCI peripherals.  I am setting up a new board where I need two SPI connections for my RA4M3 board.  One to some motor drivers and one to non-QSPI external flash.  I will use the one “standalone SPI” that is available, and then one of the SCI peripherals.

Are there any constraints I need to worry about?

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non-Qspi external flashra mcura4m3SCI peripheralsspi
  1. pallavi sharma

    The "simple SPI" mode of the SCI is significantly different than the SPI peripheral. For example the simple-SPI is limited to only 8-databits while the standalone-SPI supports many different bit lengths.  If your needs are met by what the simple-SPI supports there is no reason to avoid to using it.

    The “simple SPI” mode of the SCI is significantly different than the SPI peripheral.

    For example the simple-SPI is limited to only 8-databits while the standalone-SPI supports many different bit lengths.  If your needs are met by what the simple-SPI supports there is no reason to avoid to using it.

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vsharma
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vsharma
Asked: July 12, 2022In:
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In Renesas RA4M3 with an SCI SPI setup, we have MOSI rising up to 3.7 V instead of 3.3V. After verifying that all input voltage to the processor is 3.3V and testing it with nothing connected to the SCI SPI ...Read more

In Renesas RA4M3 with an SCI SPI setup, we have MOSI rising up to 3.7 V instead of 3.3V. After verifying that all input voltage to the processor is 3.3V and testing it with nothing connected to the SCI SPI as well we could not find reason for MOSI rising up to 3.7V.

Any insight on why this happens?

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mosira4m3renesasscispi
  1. pallavi sharma

    It seems that the motor driver board is sourcing voltage and current into the EVK. 

    It seems that the motor driver board is sourcing voltage and current into the EVK. 

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