UART bootloader

[casainho]

And I am not start thinking about the mobile app. But for start, looking at the bootloader option of STM8. Seems that if bootloader is enable on the options bytes (which I think it is not on the original firmware), the user can flash the firmware using the UART -- this would mean that users would need to use only 1 first time the STLinkV2 to erase the original firmware and enable the UART bootloader, after they could flash our firmware by UART...
And if we have a mobile app, the app could flash the firmware, so the user would just need to hit a button to update the firmware -- but this could work on the mobile app or even the Java tool :-)

For the interested, here is the ST documentastion for the STM8 bootloader: https://opensourceebikefirmware.bitbucket.io/EmbeddedFiles/9-STM8_bootloader.pdf