AN3262 datasheet(11/27 Pages) STMICROELECTRONICS

Part #	AN3262

Description	Using the over-the-air bootloader with STM32W108 devices

PDF	27 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

11 / 27 page

AN3262

Bootloader command set

Doc ID 17845 Rev 2

11/27

3.3

GET ID command

The GET ID command is used to get the version of the chip ID (identification). When the

bootloader receives the command, it transmits the device ID to the host.

The STM32 device sends the following bytes:

Byte 1:

ACK

Byte 2:

N = the number of bytes - 1

(N = 1 for STM32), except for current byte and ACKs.

Bytes 3-4: PID (Byte 3 = 0x09, Byte 4 = 0xA8)

Byte 5:

ACK

All information sent by the device starting from the first ACK/NACK to the last ACK/NACK is

contained inside a single 802.15.4 packet as shown in Figure 14.

Figure 12.

GET ID command (host side)

GID = Get ID command.

Ai14635

Wait for ACK

or NACK

Receive N = number of bytes – 1

Wait for ACK

or NACK

End of GID(1)

NACK

ACK

Send 0x02+0xFD

Start GID(1)

Receive PID

NACK

ACK

AN3262 Datasheet(PDF) 11 Page - STMicroelectronics