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doc: Add STM32H745I-DISCO RPTUN documentation

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Signed-off-by: Nonpawit Ekburanawat <nonpawit.ek@gmail.com>
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Nonpawit Ekburanawat 2024-09-17 21:08:35 +02:00 committed by Alan C. Assis
parent ae95623b8d
commit 67ffe7974c
1 changed files with 30 additions and 4 deletions
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34
Documentation/platforms/arm/stm32h7/boards/stm32h745i-disco/index.rst
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@ -3,9 +3,13 @@ ST STM32H745I-DISCO
===================
Dual core support
-----------------
=================
It is recommended to use CMake to build firmware consisting of multiple images.
Dual instances
--------------
The commands to build ``nsh_xxx`` configurations are as follows::
cmake -B build_cm7 -DBOARD_CONFIG=stm32h745i-disco:nsh_cm7 -GNinja
@ -14,8 +18,19 @@ The commands to build ``nsh_xxx`` configurations are as follows::
cmake --build build_cm7
cmake --build build_cm4
Dual core RPTun
---------------
The commands to build ``nsh_xxx_rptun`` configurations are as follows::
cmake -B build_cm7_rptun -DBOARD_CONFIG=stm32h745i-disco:nsh_cm7_rptun -GNinja
cmake -B build_cm4_rptun -DBOARD_CONFIG=stm32h745i-disco:nsh_cm4_rptun -GNinja
cmake --build build_cm7_rptun
cmake --build build_cm4_rptun
Serial console
--------------
==============
The STM32H745I-DISCO board's ST-LINK interface is connected to USART3, which
is used as the serial console for the Cortex-M7 core by default. The
@ -28,7 +43,8 @@ USART3_RX PB11
USART3_TX PB10
================= ====
When using the nsh_xxx configuration, UART7 is assigned to the Cortex-M4 core.
When using the ``nsh_xxx`` configuration, UART7 is assigned to the Cortex-M4
core.
The UART7 connections can be accessed via the Arduino connector on the board:
================= =================
@ -40,4 +56,14 @@ UART7_TX PB4 (Arduino D5)
This allows the Cortex-M4 core to utilize a separate serial interface, making
it possible to debug or interact with both cores simultaneously through
different UART interfaces.
different UART interfaces.
RPTun
-----
When using the ``nsh_xxx_rptun`` configuration, users can connect to the
CM4 core from the CM7 core by using the ``cu`` command::
nsh-cm7> cu -l /dev/ttyproxy
NuttShell (NSH) NuttX-10.4.0
nsh-cm4>