Download Addresses; Ota Firmware; Flash Map - Espressif Systems ESP8266 SDK Getting Started Manual

!
Flash
capacity
2048
4096
8192
16*1024
�� Note:
ESP8266 presently only supports a System Param area of up to 1024 KB.

4.1.2. Download Addresses

Table 4-2 lists the download addresses for non-OTA firmware.
Binaries
master_device_key.bin
esp_init_data_default.bin 0x7C000
blank.bin
eagle.flash.bin
eagle.irom0text.bin
�� Notes:
• In general,
But for 8 MB or 16 MB flash, please use
•

4.2. OTA Firmware

4.2.1. Flash Map

Table 4-3 lists the download addresses for the OTA firmware.
Flash capacity
Espressif
eagle.flash.bin eagle.irom0text.bin
≤ 64 ≤ 768
≤ 64 ≤ 768
≤ 64 ≤ 768
≤ 64 ≤ 768
Table 4-2. Download Address for Non-OTA Firmware (unit: KB)
512
0x7E000
ESP Flash Download Tool
Table 4-3. OTA Flash Map (unit: KB)
boot
512 4 ≤ 236
1024 4 ≤ 492
User data
≥ 176
≥ 176
≥ 176
≥ 176
Download addresses in flash with different capacities
1024 2048
0x3E000
0xFC000 0x1FC000
0xFE000 0x1FE000
0x00000
0x10000
can be used to download firmware into flash.
esptool instead.
user1.bin user2.bin
≤ 236
≤ 492
! 15 33 /!
4. Flash Maps
User/System
len
Param
0xC0000 16
0xC0000 16
0xC0000 16
0xC0000 16
4096 8192
0x3FC000 0x7FC000 0xFFC000
0x3FE000 0x7FE000 0xFFE000
User/System
User data
Param
16 ≥ 0
16 ≥ 0
16*1024
2017.05