OTA implementation stm32l072

[satyam9896]

SO I HAVE STARTED MY PROJECT WITH STM32L072 SERIES WHICH IS HAVING 192B FLASH 64 PIN IC along with bluenrg-m2sa. my concern and doubt is regarding implementation of ota feature to stm32l072 ic which i never implemented and work on before and also the examples and other refrences are mostly availabe for L4 or F series IC so my request to give me and help me with appropriate resoures and file so that i can easily implement the ota feature to my project and can easily understand also.

[Andrew Neil]

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@satyam9896 wrote:

 PROJECT WITH STM32L072 ... along with bluenrg-m2sa. 

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So which part's firmware are you trying to update - the STM32L072 or the BlueNRG ?

https://www.st.com/resource/en/application_note/an4657-stm32-inapplication-programming-iap-using-the-usart-stmicroelectronics.pdf

[satyam9896]

i will update the stm32l0 ic only and using the bluenrg to recieve the hex or code from dedicated app if any.

[Andrew Neil]

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@satyam9896 wrote:

 using the bluenrg to recieve the hex or code 

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Strongly recommend that you do not send hex!

Writing a reliable hex decoder is non-trivial, and hex is very inefficient over the air.

[satyam9896]

okay so bin i will use however please help in implementation.

[Andrew Neil]

You've marked this as solved.

If it's not solved, you can un-mark the solution:

https://community.st.com/t5/community-guidelines/help-others-to-solve-their-issues/ta-p/575256#:~:text=If%20you%20accidentally%20chose%20the%20wrong%20post%20as%20solution%2C%20you%20can%20always%20revert%20this%20action%20by%20clicking%20%22Not%20the%20Solution%22

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@satyam9896 wrote:

 please help in implementation.

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Did you read the linked Application Note?

What have you tried so far?

Where are you stuck?

[satyam9896]

Sorry my bad. i did not that i hve marked it but anyways coming to the point linked app note so i have not seen that yet.

so far i have downloaded the project and tried to go through the given examples 

https://github.com/STMicroelectronics/fp-sns-allmems1/tree/main/Projects/STM32L476JG-SensorTile/Applications/ALLMEMS1

I just dont know how to start and from where to start.

[Andrew Neil]

Before looking at code, you should read the Application Note - to understand what the code is trying to achieve:

https://www.st.com/resource/en/application_note/an4657-stm32-inapplication-programming-iap-using-the-usart-stmicroelectronics.pdf

[satyam9896]

but this application is saying programming using USART but my Aim to get the firmware updated via bluetooth communication. is that application will explain me about OTA ? and that tho using ble?

[Andrew Neil]

Any & every update scheme involves two parts:

1. Transferring the data;
2. Getting that data into the Flash.

The two are independent - you can substitute a different way to transfer the data without affecting the Flash programming.