doc: Add documentation for STM32 MCUs
Add documentation for STM32 MCUs (F4, F7 and H7 series). Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
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Patrice Chotard
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STM32F429-DISCOVERY BOARD
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M: Kamil Lulko <kamil.lulko@gmail.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32f429-discovery/
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F: include/configs/stm32f429-discovery.h
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F: configs/stm32f429-discovery_defconfig
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STM32F429-EVALUATION BOARD
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M: Patrice Chotard <patrice.chotard@foss.st.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32f429-evaluation/
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F: include/configs/stm32f429-evaluation.h
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F: configs/stm32f429-evaluation_defconfig
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STM32F469-DISCOVERY BOARD
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M: Patrice Chotard <patrice.chotard@foss.st.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32f469-discovery/
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F: include/configs/stm32f469-discovery.h
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F: configs/stm32f469-discovery_defconfig
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STM32F746 DISCOVERY BOARD
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M: Vikas Manocha <vikas.manocha@st.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32f746-disco
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F: include/configs/stm32f746-disco.h
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F: configs/stm32f746-disco_defconfig
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STM32H743 DISCOVERY BOARD
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M: Patrice Chotard <patrice.chotard@foss.st.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32h743-disco
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F: include/configs/stm32h743-disco.h
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F: configs/stm32h743-disco_defconfig
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STM32H743 EVALUATION BOARD
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M: Patrice Chotard <patrice.chotard@foss.st.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32h743-eval
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F: include/configs/stm32h743-eval.h
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F: configs/stm32h743-eval_defconfig
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STM32H750 ART PI BOARD
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M: Dillon Min <dillon.minfei@gmail.com>
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S: Maintained
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F: doc/board/st/
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F: board/st/stm32h750-art-pi
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F: include/configs/stm32h750-art-pi.h
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F: configs/stm32h750-art-pi_defconfig
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@ -8,3 +8,4 @@ STMicroelectronics
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st-dt
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stm32mp1
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stm32_MCU
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.. SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
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.. sectionauthor:: Patrice Chotard <patrice.chotardy@foss.st.com>
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STM32 MCU boards
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=================
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This is a quick instruction for setup STM32 MCU boards.
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Supported devices
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-----------------
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U-Boot supports the following STMP32 MCU SoCs:
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- STM32F429
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- STM32F469
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- STM32F746
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- STM32F769
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- STM32H743
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- STM32H750
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SoCs information:
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-----------------
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STM32F4 series are Cortex-M4 MCU.
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STM32F7 and STM32H7 series are Cortex-M7 MCU.
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+ STM32F4 series: https://www.st.com/en/microcontrollers-microprocessors/stm32f4-series.html
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+ STM32F7 series: https://www.st.com/en/microcontrollers-microprocessors/stm32f7-series.html
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+ STM32H7 series: https://www.st.com/en/microcontrollers-microprocessors/stm32h7-series.html
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Currently the following boards are supported:
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+ stm32f429-discovery
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+ stm32f469-discovery
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+ stm32746g-evaluation
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+ stm32f746-discovery
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+ stm32f769-discovery
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+ stm32h743i-discovery
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+ stm32h743i-evaluation
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+ stm32h750i-art-pi
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Boot Sequences
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--------------
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For STM32F7 series, 2 boot configurations are supported with and without SPL
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+------------------------+-------------------------+--------------+
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| **FSBL** | **SSBL** | **OS** |
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+------------------------+-------------------------+--------------+
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| First Stage Bootloader | Second Stage Bootloader | Linux Kernel |
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+------------------------+-------------------------+--------------+
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| embedded Flash | DDR |
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+------------------------+-------------------------+--------------+
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The boot chain with SPL
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```````````````````````
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defconfig_file :
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+ **stm32746g-eval_spl_defconfig**
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+ **stm32f746-disco_spl_defconfig**
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+ **stm32f769-disco_spl_defconfig**
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+------------+------------+-------+
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| FSBL | SSBL | OS |
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+------------+------------+-------+
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|U-Boot SPL | U-Boot | Linux |
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+------------+------------+-------+
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The boot chain without SPL
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``````````````````````````
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defconfig_file :
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+ **stm32f429-discovery_defconfig**
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+ **stm32f429-evaluation_defconfig**
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+ **stm32f469-discovery_defconfig**
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+ **stm32746g-eval_defconfig**
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+ **stm32f746-disco_defconfig**
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+ **stm32f769-disco_defconfig**
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+ **stm32h743-disco_defconfig**
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+ **stm32h743-eval_defconfig**
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+ **stm32h750-art-pi_defconfig**
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+-----------+-------+
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| FSBL | OS |
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+-----------+-------+
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|U-Boot | Linux |
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+-----------+-------+
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Build Procedure
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---------------
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1. Install the required tools for U-Boot
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* install package needed in U-Boot makefile
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(libssl-dev, swig, libpython-dev...)
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* install ARMv7 toolchain for 32bit Cortex-A (from Linaro,
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from SDK for STM32MP15x, or any crosstoolchains from your distribution)
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(you can use any gcc cross compiler compatible with U-Boot)
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2. Set the cross compiler::
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# export CROSS_COMPILE=/path/to/toolchain/arm-linux-gnueabi-
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3. Select the output directory (optional)::
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# export KBUILD_OUTPUT=/path/to/output
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for example: use one output directory for each configuration::
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# export KBUILD_OUTPUT=stm32f4
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# export KBUILD_OUTPUT=stm32f7
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# export KBUILD_OUTPUT=stm32h7
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you can build outside of code directory::
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# export KBUILD_OUTPUT=../build/stm32f4
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4. Configure U-Boot::
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# make <defconfig_file>
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For example with <defconfig_file>:
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- For **stm32f429 discovery** board : **stm32f429-discovery_defconfig**
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- For **stm32f769 discovery** board with SPL: **stm32f769-disco_spl_defconfig**
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- For **stm32f769 discovery** board without SPL: **stm32f769-disco_defconfig**
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5. Configure the device-tree and build the U-Boot image::
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# make DEVICE_TREE=<name> all
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Examples:
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a) boot with SPL on stm32f746 discovery board::
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# export KBUILD_OUTPUT=stm32f746-disco
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# make stm32f746-disco_spl_defconfig
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# make all
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b) boot without SPL on stm32f746 discovery board::
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# export KBUILD_OUTPUT=stm32f746-disco
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# make stm32f746-disco_defconfig
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# make all
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c) boot on stm32h743 discovery board::
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# export KBUILD_OUTPUT=stm32h743-disco
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# make stm32h743-disco_defconfig
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# make all
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d) boot on stm32h743 evaluation board::
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# export KBUILD_OUTPUT=stm32h743-disco
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# make stm32h743-eval_defconfig
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# make all
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6. U-Boot Output files
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So in the output directory (selected by KBUILD_OUTPUT),
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you can found the needed U-Boot files, for example::
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- stm32f746-disco_defconfig = **u-boot-dtb.bin** and **u-boot.dtb**
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- FSBL = u-boot-dtb.bin
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- stm32f746-disco_spl_defconfig = **u-boot-dtb.bin**, **u-boot.dtb** and **u-boot-with-spl.bin**
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- FSBL + SSBL = u-boot-with-spl.bin
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- SSBL = u-boot-dtb.bin
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7. Flash U-Boot files
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Plug STM32 MCUs board using the USB ST-Link connector, hence it will expose
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the flash area as a mass-storage. In this mass-storage you will find the
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following files:
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- DETAILS.TXT: give the bootrom version and build
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- MBED.HTM: shortcul to the hardware board description web page from st.com.
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Copy/paste the u-boot.bin or u-boot-with-spl.bin (in case of bootchain with SPL)
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to this mass-storage. The "COM" LED will blink alternatively red and green during
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the flash process. When done the board will reboot automatically.
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In case of boot with SPL, by default SPL will try to load either a Linux
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kernel (falcon mode) or, if the key "c" is maintained pressed, the main U-Boot.
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