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Home/CC-RX compiler

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geek
Asked: July 30, 2022In: Microcontroller

Reserve ROM area in linker

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I am using Renesas RX66T on a e2studio Version: 2022-04 (22.4.0) with CC-RX compiler. Is there a way to reserve a certain area of ​​the ROM so that the linker does not insert any variables to the addresses in the range?

I am using Renesas RX66T on a e2studio Version: 2022-04 (22.4.0) with CC-RX compiler.

Is there a way to reserve a certain area of ​​the ROM so that the linker does not insert any variables to the addresses in the range?

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CC-RX compilere2studioRenesas RX66Trom
  1. Alex thomas
    Added an answer on August 1, 2022 at 4:15 pm

    If you already start your section at 0xFFF80010, as far as this project is concern, 0xFFF80000~0xFFF8000F doesn't exist.  Isn't this what you want? You choose the start of ROM.  If you want to make a middle section disappear, ROM = 0xFFF80000 - 0xFFF8FFFF ROM2=0xFFF90010 - 0xFFFFFFFF use cpu = stridRead more

    If you already start your section at 0xFFF80010, as far as this project is concern, 0xFFF80000~0xFFF8000F doesn’t exist.  Isn’t this what you want?

    You choose the start of ROM.  If you want to make a middle section disappear,

    ROM = 0xFFF80000 – 0xFFF8FFFF

    ROM2=0xFFF90010 – 0xFFFFFFFF

    use cpu = stride so the middle section is un-assigned.

    From ccrx manual

    .section C, ROMDATA     B is for RAM. C=constant.

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