| Reader Communication Protocol Developer's Guide |
|
Write Flash
Write the content of the onboard flash memory, used to Update the firmware of reader.
Command Attribute
| Command Code | Bootloader Command | App Firmware Command |
|---|---|---|
| 0x01 | Yes | No |
Host to Reader
Format of Data Field
| Field | Byte Length | Description |
|---|---|---|
| FINFLAG | 1 byte | 0 means that there is still burning data to be written to Flash. 0XFF means the last writing to Flash. |
| WRITEADDR | 4 bytes | The initial address of burning is 0x00104000. After each successful writing, the next writing address will be WRITEADDR+ WRITELEN*4. |
| WRITELEN | 1 byte | Defines the length of the WRITEDATA. The length of the following WRITEDATA is WRITELEN*4 bytes.The value of WRITELEN is fixed to 32; the actual number of bytes to be written is divided by 4 only when the data length of the last writing to Flash is less than 128 bytes. |
| WRITEDATA | N bytes | Data to be written to Flash, the number of bytes is a multiple of 4. |