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AN4286 Fiches technique(PDF) 13 Page - STMicroelectronics

No de pièce AN4286
Description  SPI protocol used in the STM32 bootloader
PDF  38 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4286 Fiches technique(HTML) 13 Page - STMicroelectronics

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Bootloader command set
AN4286
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DocID024458 Rev 2
Figure 9. Get Version: slave side
2.4
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 product ID to the master.
The STM32 slave sends the bytes as follows.
•
Byte 1: ACK
•
Byte 2: N = the number of bytes – 1 (N = 1), except for current byte and ACKs.
•
Bytes 3-4: PID
–
byte 3 = MSB
–
byte 4 = LSB
•
Byte 5: ACK



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