173 lines
5.7 KiB
Plaintext
173 lines
5.7 KiB
Plaintext
README
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======
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This README discusses issues unique to NuttX configurations for the
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STMicro NUCLEO-H743ZI development board featuring the STM32H743ZI
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MCU. The STM32H743ZI is a 400MHz Cortex-M7 operation with 2MBytes Flash
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memory and 1MByte SRAM. The board features:
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- On-board ST-LINK/V2-1 for programming and debugging,
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- Mbed-enabled (mbed.org)
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- 3 user LEDs
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- Two pushbuttons (user and reset)
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- 32.768 kHz crystal oscillator
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- USB OTG FS with Micro-AB connectors
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- Ethernet connector compliant with IEEE-802.3-2002
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- Board connectors:
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- USB with Micro-AB
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- SWD
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- Ethernet RJ45
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- ST Zio connector including Arduino Uno V3
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- ST morpho
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Refer to the http://www.st.com website for further information about this
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board (search keyword: NUCLEO-H743ZI)
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Contents
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========
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- STATUS
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- Serial Console
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- Configurations
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STATUS
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======
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2018-06-16: This port is still incomplete! It is lacking the following
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at a minimum:
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- The RCC register definitions must still be updated per the STM32H7x3
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user manual.
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- The RCC-based clock configuration logic must be redesigned to support
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the STM32H7's RCC.
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- There is no U[S]ART support in arch/arm/src/stm32h7. For the most
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part the U[S]ART is compatible with the STM32 F7, however, updates
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will be required to support: (1) the new STM32 H7 clock prescaler,
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and (2) the new STM32 H7 Rx and Tx FIFOs.
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- There is a fragmentary NSH here. However, it does not have any serial
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console selected and is not expected to be usable.
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This logic has set on a branch for some time with little progress. I
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have decided to bring it into the master but only with the option to
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select the STM32 H7 architecture dependent on CONFIG_EXPERMIMENTAL.
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That should eliminate the possibility of anyone accidentally enabling
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this know incomplete port.
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2018-07-12: After several commits focused primarily on the H7 RCC and
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serial driver, Mateusz Szafoni states the basic NSH configuration is
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now functional.
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2018-09-16: I2C Driver added by Mateusz Szafoni.
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2018-10-02: SPI Driver added by Mateusz Szafoni.
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2019-03-02: DMA support contributed by Mateusz Szafoni.
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Serial Console
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==============
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Many options are available for a serial console via the Morpho connector.
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Here two common serial console options are suggested:
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1. Arduino Serial Shield.
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If you are using a standard Arduino RS-232 shield with the serial
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interface with RX on pin D0 and TX on pin D1 from USART6:
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-------- ---------------
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STM32H7
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ARDUINO FUNCTION GPIO
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-- ----- --------- -----
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DO RX USART6_RX PG9
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D1 TX USART6_TX PG14
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-- ----- --------- -----
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2. Nucleo Virtual Console.
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The virtual console uses Serial Port 3 (USART3) with TX on PD8 and RX on
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PD9.
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----------------- ---
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VCOM Signal Pin
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----------------- ---
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SERIAL_RX PD9
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SERIAL_TX PD8
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----------------- ---
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These signals are internally connected to the on board ST-Link.
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The Nucleo virtual console is the default serial console in all
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configurations unless otherwise stated in the description of the
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configuration.
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Configurations
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==============
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Information Common to All Configurations
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----------------------------------------
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Each Nucleo-H743ZI configuration is maintained in a sub-directory and
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can be selected as follow:
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tools/configure.sh [options] viewtool-stm32f107:<subdir>
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Where options should specify the host build platform (-l for Linux, -c for
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Cygwin under Windows, etc.). Try 'tools/configure.sh -h' for the complete
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list of options.
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Before starting the build, make sure that (1) your PATH environment variable
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includes the correct path to your toolchain, and (2) you have the correct
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toolchain selected in the configuration.
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And then build NuttX by simply typing the following. At the conclusion of
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the make, the nuttx binary will reside in an ELF file called, simply, nuttx.
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make
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The <subdir> that is provided above as an argument to the tools/configure.sh
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must be is one of the following.
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NOTES:
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1. These configurations use the mconf-based configuration tool. To
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change any of these configurations using that tool, you should:
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a. Build and install the kconfig-mconf tool. See nuttx/README.txt
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see additional README.txt files in the NuttX tools repository.
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b. Execute 'make menuconfig' in nuttx/ in order to start the
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reconfiguration process.
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2. Unless stated otherwise, all configurations generate console
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output on the ST-Link VCOM, USART3.
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3. Unless otherwise stated, the configurations are setup for Linux by
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default:
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Build Setup:
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CONFIG_HOST_LINUX=y : Linux host operating system
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4. All of these configurations use the general arm-none-eabi toolchain for
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Linux That toolchain selection can easily be reconfigured using 'make
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menuconfig'.
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5. These configurations all assume that you are loading code using
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something like the ST-Link v2 JTAG. None of these configurations are
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setup to use the DFU bootloader but should be easily reconfigured to
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use that bootloader if so desired.
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Configuration Sub-directories
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-----------------------------
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nsh:
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This configuration provides a basic NuttShell configuration (NSH)
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for the Nucleo-H743ZI. The default console is the VCOM on USART3.
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MCUboot safe bootloader implementation
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--------------------------------------
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mcuboot:
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This configuration provides a base implementation for mcuboot integration
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in nuttx.
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mcuboot-loader: Nuttx app-based bootloader.
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mcuboot-app: Nuttx app with nsh as entrypoint.
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