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IMXRT1060 Flashloader

Description

Flashloader for the i.MXRT1060 series microcontroller.

Initially imported from NXP SDK Version 2.6.2 with changes to include the ability to assign a uSDHC instance when interfacing with SD cards and MMC devices.

Changes

Original source has the following hard coded assignments:

Memory Device uSDHC Instance
SD Card       1
MMC Device     2

Changes in this repository allows for the following:

  1. Initialisation of the external memory device(s) using the selected uSDHC instance set in the OTP Fuses.
  2. User selection of uSDHC instance when executing the blhost -- configure-memory command for both SD cards and MMC devices.

Tools

Built and tested using:

  • MCUXpresso IDE v11.0.1 [Build 2563]
    • arm-none-eabi-gcc v8.2.1

Designed to work in conjunction with the NXP provided PC host tool:

  • blhost (V2.2.0)

Building

  1. Build within MCUXpresso IDE
  • 'Release' Build Configuration
  • Project -> Build All
  1. Generate bootable image using the NXP provided PC tool - elftosb:
  • ./elftosb -f imx -V -c imxrt1060_flashloader.bd -o ivt_flashloader.bin Release/imxrt1060_flashloader.s19