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Home/ra4m3

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sachinsharma
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sachinsharma
Asked: July 8, 2023In: Microcontroller

How to combining mcuboot and application in EK-RA4M3?

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Hello, I’ve an EK-RA4M3 with MCUBOOT using SWAP. I want to create a single hex file for combining mcuboot and application. I’m assuming I just need to modify the Python script options to create a signed hex instead of a signed binary? Thank ...Read more

Hello,

I’ve an EK-RA4M3 with MCUBOOT using SWAP. I want to create a single hex file for combining mcuboot and application.

I’m assuming I just need to modify the Python script options to create a signed hex instead of a signed binary?

Thank You

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mcumcubootmicrocontrollerspythonra4m3renesasswap
  1. nidhi singh
    Added an answer on July 11, 2023 at 10:04 am

    Hi, I'm sure it's possible to modify the Python signing program to output a hex file rather than binary by adding suitable code or pre-existing library. python imgtool.py sign -k mcuboot/root-rsa-2048.pem -v 1.0.0 --header-size 0x200 --align 4 --pad-header --pad-header-size 0x200 merged.hex signed.hRead more

    Hi,

    I’m sure it’s possible to modify the Python signing program to output a hex file rather than binary by adding suitable code or pre-existing library.

    python imgtool.py sign -k mcuboot/root-rsa-2048.pem -v 1.0.0 --header-size 0x200 --align 4 --pad-header --pad-header-size 0x200 merged.hex signed.hex

    In this example, merged.hex is the merged hex file, and signed.hex is the signed hex file that will be created. The –pad-header and –pad- header-size options are used to add padding to the title of the signed hex file, which is required by MCUBOOT.

    Thank You

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  • 1 Answer
Answer
vikas Nagpal
  • 0
vikas Nagpal
Asked: September 2, 2022In: Microcontroller

RA4M3 MCUBoot with external secondary slot in QSPI and coded with ECISE

  • 0

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
    Added an answer on September 8, 2022 at 10:15 am

    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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  • 1 Answer
Answer
Anonymous
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Anonymous
Asked: July 25, 2022In: Microcontroller

Differnce between “Simple SPI” and “Standalone SPI”?

  • 0

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?

Read less
non-Qspi external flashra mcura4m3SCI peripheralsspi
  1. pallavi sharma
    Added an answer on July 29, 2022 at 4:33 pm

    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
  • 0
vsharma
Asked: July 12, 2022In: Microcontroller

SCI SPI MOSI at 3.7V instead of 3.3V

  • 0

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
    Added an answer on July 13, 2022 at 6:16 pm

    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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