AN3154 datasheet(11/34 Pages) STMICROELECTRONICS

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AN3154

Bootloader command set

Message 12: Std ID = 0x00, DLC = 1, data = 0x63 - Write Protect command

Message 13: Std ID = 0x00, DLC = 1, data = 0x73 - Write Unprotect command

Message 14: Std ID = 0x00, DLC = 1, data = 82h - Readout Protect command

Message 15: Std ID = 0x00, DLC = 1, data = 92h - Readout Unprotect command

Message 1: Std ID = 0x00, DLC = 1, data = 0x79- ACK

3.2

Get Version & Read Protection Status command

The Get Version & Read Protection Status command is used to get the bootloader version

and the read protection status. When the bootloader receives the command, it transmits the

information described below (version and 2 dummy bytes having value 0x00) to the host.

Figure 6. Get Version & Read Protection Status command: host side

1. GV = Get Version & Read Protection Status.

The host sends messages as follows:

Command message: Std ID = 0x01, data length code (DLC) = ‘not important’.

ACK Message contain: Std ID = 0x01, DLC = 1, data = 0x79 - ACK

AN3154 데이터시트(PDF) 11 Page - STMicroelectronics