Nv Items Reader Writer Tool -

The tool consists of three layers:

| Layer | Components | |-------|-------------| | Application | CLI, GUI (Qt), Python API, REST server | | Core Engine | Item parser, checksum validator, write queue, backup manager | | Transport Abstraction | Serial (UART, USB-CDC), I²C, SPI, SWD, JTAG (via pyOCD) |

Item Definition Format (example in TOML): nv items reader writer tool

[[nv_item]]
name = "device_serial"
type = "string"
max_len = 32
address = 0x0800FC00
checksum = "crc16"
[[nv_item]]
name = "calibration"
type = "float[3]"
address = 0x0800FC20

Each NV item is described using a schema:

<nv_item>
  <name>DeviceSerial</name>
  <address>0x0800FC00</address>
  <length>16</length>
  <type>string</type>
  <writable>true</writable>
  <crc_enabled>true</crc_enabled>
</nv_item>

The majority of "NV Items Reader Writer Tools" are designed for Qualcomm Snapdragon processors. Supported devices include: The tool consists of three layers: | Layer

For MediaTek devices, you will need a variant like "Meta Mode NV Reader" or "SN Writer Tool." For Spreadtrum/Unisoc, use "ResearchDownload" or "TransPhone Tool."