存储系统¶
Memory Map¶
Runtime Memory |
Range |
|---|---|
Flash |
0x18000000 - 0x18080000 |
SRAM |
0x0000 - 0xC000 |
Flash¶
No. |
Section Name |
Start Offset |
End Offset |
Size |
|---|---|---|---|---|
8 |
OTA SETTINGS |
0x7f000 |
0x80000 |
4KB |
7 |
BLE PROTOCOL STACK |
__stack_lma__ |
0x7f000 |
About 205KB |
6 |
|
__mesh_stack_lma__ |
__stack_lma__ |
About 120KB |
5 |
SINGLE BANK FOTA UTILITY (optional) |
0x3d000 |
About 40KB |
|
4 |
IMAGE and OTA IMAGE |
0x5000 |
||
3 |
PERSISTENT DATA |
0x2000 |
0x5000 |
SECTION_NUM * SECTION_SIZE ( Default 12KB) |
2 |
SECOND BOOTLOADER |
0x1000 |
0x2000 |
4KB |
1 |
INFORMATION |
0x0 |
0x1000 |
4KB |
- INFORMATION
运行时，为只读区域。需应用程序确保不写此区域。
该区域 0x30-0x35 6个字节默认用于存储设备默认蓝牙地址(Default MAC Address)。
在天猫MESH应用里，该区域 0x200 - 0x219 26个字节默认用于存储三元组。
SRAM¶
Runtime Section |
Start Address |
End Address |
Size |
|---|---|---|---|
BLE PROTOCOL DATA |
Stack_Top |
0xC000 |
|
APP STACK |
Stack_Top |
||
APP HEAP |
|||
APP BSS |
|||
APP DATA |
__data_end__ |
||
APP XIP_BANNED |
|||
RESET_RETAIN |
0xC0 |
||
APP ISR_VECTOR |
0x0 |
0xC0 |