[GitHub] [mynewt-newt] dbeitel opened a new issue, #474: newt mfg create issue with apollo3 MCU

[GitBox <gi...@apache.org>]

dbeitel opened a new issue, #474:
URL: https://github.com/apache/mynewt-newt/issues/474

   Hi, I’ve run into an issue building a manufacturing image and I’m not sure how to work around it.  The issue is the apollo3 MCU has a boot rom starting at the beginning of flash (0x0).  When I generate the manufacturing image, the hex file has entries starting at 0x0 that overlap the boot rom.  When I try to write the image to flash, the flash writer fails when writing these entries.  
   bsp.yml
   
   `bsp.flash_map:
       areas:
           # System areas. Page size is 8kb
           FLASH_AREA_BOOTLOADER:
               device: 0
               offset: 0x0000c000
               size: 32kB
           FLASH_AREA_IMAGE_SCRATCH:
               device: 0
               offset: 0x00014000
               size: 16kB
           FLASH_AREA_IMAGE_0:
               device: 0
               offset: 0x00018000
               size: 384kB
           FLASH_AREA_IMAGE_1:
               device: 0
               offset: 0x00078000
               size: 384kB
   
           # User areas (internal).
           FLASH_AREA_BOOTROM:
               user_id: 15
               device: 0
               offset: 0x00000000
               size: 48kB`
   
   mfg.yml
   
   `mfg.targets:
     -
       name: 'targets/boot_ama3bevb'
       area: FLASH_AREA_BOOTLOADER
       offset: 0
     -
       name: 'targets/mfg_test_ama3bevb'
       area: FLASH_AREA_IMAGE_0
       offset: 0
     -
       name: 'targets/runner_ama3bevb'
       area: FLASH_AREA_IMAGE_1
       offset: 0
     -
       name: 'targets/recovery_ama3bevb'
       area: FLASH_AREA_IMAGE_FACTORY
       offset: 0
   
   mfg.meta:
       # The MMR is placed at the start of the scratch area.
       area: FLASH_AREA_IMAGE_SCRATCH
       offset: 0`
   
   Hex output:
   
   `:10000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00
   :10001000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0
   :10002000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE0
   :10003000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD0
   :10004000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC0
   ...
   :10BFD000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF71
   :10BFE000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF61
   :10BFF000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF51
   :10C00000F8FF051001C100006DC100006FC1000004
   :10C0100071C1000073C1000075C1000077C100004C
   :10C020000000000000000000000000009FC10000B0
   :10C030007BC1000000000000E5C100002BC2000031
   :10C0400081C1000081C1000081C1000081C10000E8
   ...`
   
   The problem is newt writes entries into the image between 0x0-0xc000 (apollo3 boot rom) and the flash tool fails during this write.


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