[GitHub] [mynewt-core] iandmorris opened a new pull request #1877: bsp/dialog_da1469x-dk-pro: Fix download to empty flash

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

iandmorris opened a new pull request #1877: bsp/dialog_da1469x-dk-pro: Fix download to empty flash
URL: https://github.com/apache/mynewt-core/pull/1877
 
 
   If a valid image is present in flash then the ROM based bootloader
   configures the QSPI controller using values found in the product header.
   If an image is not present this configuration does not take place. This
   causes problems if an application is running out of RAM and needs to
   read the flash in QSPI automode. For example if the flash loader
   application is loaded into RAM on a board containing a blank flash then
   it is able to erase and program the flash as these operations take place
   in SPI mode. However it is not able to read the flash as a memory mapped
   device because the QSPI controller has not been configured with valid
   read commands for use in automode. The inability to read the flash
   causes the verify performed as part of the programming process to fail.
   This fix resolves this issue by writing the read commands into the
   relevant registers when the download script is exected.

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