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PelionIoT / pelion-ready-example

Pelion Device Ready example - deprecated
https://github.com/ARMmbed/pelion-ready-example
Apache License 2.0
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Add SOTP specific instructions. #8

Closed ashok-rao closed 6 years ago

ashok-rao commented 6 years ago

Added a section to README for sotp specific changes required to mbed_app.json.

@MarceloSalazar , could you please review? thanks!

MarceloSalazar commented 6 years ago

@ashok-rao overall looks good.

@dhwalters423 please have a look - hopefully this is all we need when porting to a new platform.

ashok-rao commented 6 years ago

@dhwalters423 @MarceloSalazar : 2 sections ONLY, or it is minimum 2 or more (depending on flash size available on the MCU)?? Can update the docs accordingly..

dhwalters423 commented 6 years ago

@teetak01 or @JanneKiiskila Can you please clarify @ashok-rao question

teetak01 commented 6 years ago

From: https://cloud.mbed.com/docs/current/porting/changing-a-customized-porting-layer.html

PAL_INTERNAL_FLASHNUM#_SECTIONS (default value: 2, max value: 2): The number of sections allocated for security use. Set to 0 if no available sections exist on the internal flash.

PAL_INTERNAL_FLASHSECTION#_ADDRESS: The starting address for each section number (either 1 or 2 depending on how many sections you have defined) for security use. Set to 0 if no available section exists on the internal flash.

So, in principle 1 section would work also, but few things to consider:

  1. For any kind of production devices, the requirement is two sections. So I would prefer that you do not give any examples which use single section.

I think we need to update the documentation to be more explicit about the requirement to have 2 sections. This is stability and durability requirement from product.

teetak01 commented 6 years ago

https://github.com/ARMmbed/mbed_Cloud_Docs/pull/757

ashok-rao commented 6 years ago

@teetak01 @JanneKiiskila .. thanks!

ashok-rao commented 6 years ago

@MarceloSalazar , @dhwalters423 : added a note about placing SOTP section in flash & also based on feedback from @teetak01 and @JanneKiiskila , clarified minimum SOTP sections= 2 as the requirement. Could you please re-review..thanks.

JanneKiiskila commented 6 years ago

For this part: "For the Firmware update over the air (FOTA), you need the following:

FlashIAP - Flash In-Application Programming (IAP) Mbed Bootloader or a bootloader compatible with Mbed Cloud Client. " currently, TCP connectivity is also needed. Right now, Firmware download supports only HTTP download which requires TCP (@evedon , @GaryThomsonARM )

-> new PR made for that - https://github.com/ARMmbed/simple-mbed-cloud-client-example-restricted/pull/9

JanneKiiskila commented 6 years ago

Please set someone from docs team also as reviewer, either @iriark01 or @peknis01 .