29 lines
1.2 KiB
Plaintext
29 lines
1.2 KiB
Plaintext
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<<<
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:sectnums:
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==== Bootloader ROM (BOOTROM)
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[cols="<3,<3,<4"]
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[frame="topbot",grid="none"]
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|=======================
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| Hardware source file(s): | neorv32_boot_rom.vhd |
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| Software driver file(s): | none |
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| Top entity port: | none |
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| Configuration generics: | `INT_BOOTLOADER_EN` | implement processor-internal bootloader when `true`
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| CPU interrupts: | none |
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|=======================
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This boot ROM module provides a read-only memory that contain the executable image of the default NEORV32
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<<_bootloader>>. If the internal bootloader is enabled via the `INT_BOOTLOADER_EN` generic the CPU's boot address
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is automatically set to the beginning of the bootloader ROM. See sections <<_address_space>> and
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<<_boot_configuration>> for more information regarding the processor's different boot scenarios.
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.Memory Size
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[IMPORTANT]
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If the configured boot ROM size is **not** a power of two the actual memory size will be auto-adjusted to
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the next power of two (e.g. configuring a memory size of 6kB will result in a physical memory size of 8kB).
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.Bootloader Image
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[IMPORTANT]
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The boot ROM is initialized during synthesis with the default bootloader image
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(`rtl/core/neorv32_bootloader_image.vhd`).
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