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AN2475 Datasheet(PDF) 28 Page - STMicroelectronics

Part # AN2475
Description  STR91xFAxxx in-application programming using UART
PDF  37 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2475 Datasheet(HTML) 28 Page - STMicroelectronics

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IAP using the ST Flash loader
AN2475
28/37
Figure 18. Write Unprotect command STR91xFA side
3.3
Running the IAP driver firmware using the Flash loader
The IAP driver is programmed in Bank1 which is remapped in hardware at address 0x00.
ST provides a free tool (Flash loader) that performs the IAP commands previously listed in
Section 3.2: Command set description.
For more details, please refer to next sections and to the Flash loader user manual.
Start WU
Is 0x71 + 0x8E
received ?
No
End WU
ai15315
Send the ACK byte
Send the ACK byte
Remove write protection
Successful or not ?
Yes
Send NACK
No



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