Difference between revisions of "PineTime bootloader improvements"
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== Current memory map == | == Current memory map == | ||
[[PineTime| Pinetime Devkit0]] is using a nRF52832-QFAA MCU with 512kB flash and a [https://datasheet.lcsc.com/szlcsc/2005251035_XTX-XT25F32BSOIGU-S_C558851.pdf XT25F32B SPI NOR external flash] with 4096kB. | |||
[[File:MemoryMap.png]] | [[File:MemoryMap.png]] | ||
Internal flash: | Internal flash (512Kb): | ||
* Page size is 4Kb | |||
* Bootloader contains the MCUBoot bootloader. | * Bootloader contains the MCUBoot bootloader. | ||
* Boot log is currently not used. Can be use to provide reboot logs to the application | * Boot log is currently not used. Can be use to provide reboot logs to the application | ||
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* Scratch is used by MCUBoot as temporary storage for swap operation | * Scratch is used by MCUBoot as temporary storage for swap operation | ||
External flash: | External flash (4096Kb): | ||
* Bootloader assets : boot logo | * Bootloader assets : boot logo | ||
* OTA : SECONDARY SLOT for MCUBoot. During OTA, this is where the new version of the firmware is stored. | * OTA : SECONDARY SLOT for MCUBoot. During OTA, this is where the new version of the firmware is stored. | ||