| Documentation |
|---|
Online Documentation |
| Related products |
|---|
| USB-I2C/SPI/GPIO Adapter - U2C-12 |
| USB-IO Interface Adapter - GPIO-12 |
USB PIC Bootloader. User Manual
7.4.5. BOOT_GET_FW_VER response
Bootloader sends this response after BOOT_READ_ID command processing. The response contains data stored in ID Locations of PIC18F microcontroller.
Eight memory locations (200000h-200007h) are designated as ID locations, where the user can store checksum or other code identification numbers.
To ease data processing boot_rsp_read_id structure can be used:
typedef struct
{
unsigned char cmd; /* command code, see BOOT_xxx constants */
unsigned char echo; /* echo is used to link between command and response */
unsigned char reserved[4];
unsigned char data[BOOT_ID_LEN];
} boot_rsp_read_id;
Fields assignment:
- cmd
Command code. cmd field contains BOOT_GET_FW_VER constant value for the given response.
- echo
Package ID. Bootloader copies it from the corresponding command before the response is sent. Therefore, when response is received, PC program can associate this response with previously sent command.
- reserved
Major version number.
- data
Minor version number.
