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docs(bootloader): Update the maximum supported bootloader size

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harshal.patil
2025-07-21 12:08:50 +05:30
parent 90d3d658bb
commit f4b329386f
2 changed files with 12 additions and 6 deletions
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9
docs/en/api-guides/bootloader.rst
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@@ -145,9 +145,12 @@ The chips come equipped with two groups of watchdog timers: Main System Watchdog
Bootloader Size
---------------
{IDF_TARGET_MAX_BOOTLOADER_SIZE:default = "64 KB (0x10000 bytes)", esp32 = "48 KB (0xC000 bytes)"}
{IDF_TARGET_MAX_PARTITION_TABLE_OFFSET:default = "0x12000", esp32 = "0xE000"}
.. Above is calculated as 0x1000 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector
{IDF_TARGET_MAX_BOOTLOADER_SIZE:default = "64 KB (0x10000 bytes)", esp32 = "48 KB (0xC000 bytes)", esp32c5 = "80 KB (0x14000 bytes)", esp32c61 = "80 KB (0x14000 bytes)", esp32h4 = "80 KB (0x14000 bytes)"}
{IDF_TARGET_MAX_PARTITION_TABLE_OFFSET:default = "0x11000", esp32 = "0xE000", esp32c5, esp32h4 = "0x17000", esp32c61 = "0x15000", esp32p4 = "0x13000"}
.. Above is calculated as:
0x1000 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector // for esp32
0x0 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector // for esp32s2, esp32s3, esp32c2, esp32c3, esp32c6, esp32c61, esp32h2, esp32h21
0x2000 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector // for Key Manager supported targets: esp32c5, esp32h4, esp32p4
When enabling additional bootloader functions, including :doc:`/security/flash-encryption` or Secure Boot, and especially if setting a high :ref:`CONFIG_BOOTLOADER_LOG_LEVEL` level, then it is important to monitor the bootloader .bin file's size.

9
docs/zh_CN/api-guides/bootloader.rst
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@@ -145,9 +145,12 @@ ESP-IDF 二级引导加载程序位于 flash 的 {IDF_TARGET_CONFIG_BOOTLOADER_O
引导加载程序大小
---------------------
{IDF_TARGET_MAX_BOOTLOADER_SIZE:default = "64 KB (0x10000 bytes)", esp32 = "48 KB (0xC000 bytes)"}
{IDF_TARGET_MAX_PARTITION_TABLE_OFFSET:default = "0x12000", esp32 = "0xE000"}
.. Above is calculated as 0x1000 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector
{IDF_TARGET_MAX_BOOTLOADER_SIZE:default = "64 KB (0x10000 字节)", esp32 = "48 KB (0xC000 字节)", esp32c5 = "80 KB (0x14000 字节)", esp32c61 = "80 KB (0x14000 字节)", esp32h4 = "80 KB (0x14000 字节)"}
{IDF_TARGET_MAX_PARTITION_TABLE_OFFSET:default = "0x11000", esp32 = "0xE000", esp32c5, esp32h4 = "0x17000", esp32c61 = "0x15000", esp32p4 = "0x13000"}
.. Above is calculated as:
0x1000 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector // for esp32
0x0 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector // for esp32s2, esp32s3, esp32c2, esp32c3, esp32c6, esp32c61, esp32h2, esp32h21
0x2000 at start of flash + IDF_TARGET_MAX_BOOTLOADER_SIZE + 0x1000 signature sector // for Key Manager supported targets: esp32c5, esp32h4, esp32p4
当需要启用额外的引导加载程序功能，包括 :doc:`/security/flash-encryption` 或安全启动，尤其是设置高级别 :ref:`CONFIG_BOOTLOADER_LOG_LEVEL` 时，监控引导加载程序 .bin 文件的大小变得非常重要。