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Documentation/platforms/nucleo-h723zg: Add oa_tc6 defconfig info
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Add documentation for oa_tc6 defconfig.

Signed-off-by: Michal Matias <mich4l.matias@gmail.com>
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Michal Matias
2026-03-07 01:12:53 +01:00
committed by Alan C. Assis
parent a3ec08c0d8
commit 01f4ec8693
1 changed files with 29 additions and 4 deletions
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Documentation/platforms/arm/stm32h7/boards/nucleo-h723zg/index.rst
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@@ -88,14 +88,14 @@ the make, the nuttx binary will reside in an ELF file called, simply, nuttx.::
Configuration Sub-directories
=============================
nsh:
----
nsh
---
This configuration provides a basic NuttShell configuration (NSH)
for the Nucleo-H723ZG. The default console is the VCOM on USART3.
netnsh:
--------
netnsh
------
This configuration enables support for the Ethernet and a set
of networking functionalities.
@@ -110,3 +110,28 @@ of networking functionalities.
this gets rounded up to the value of the tick time which is 10 ms!
Therefore the time you will wait for the nsh console if the Ethernet
is not plugged in is ``2 * 10 ms * 0x1998 = 130s``.
oa_tc6
------
This configuration features the network driver for 10BASE-T1S and 10BASE-T1L SPI MAC-PHYs
that follow the `OPEN Alliance 10BASE-T1x MAC-PHY Serial Interface` specification (OA-TC6).
Among such MAC-PHYs are e.g. Microchip LAN865x, Onsemi NCV7410 (NCN26010), Analog Devices ADIN1110.
See the build configuration utility (e.g. ``make menuconfig``) to find out which ones are currently supported.
The OA-TC6 defines a 5 signal connection between the MAC-PHY and the host MCU. These are 4 lines for the standard SPI and 1 line for the interrupt signal from the MAC-PHY to the MCU.
**Default pinout**
============ ========== =========================================
Nucleo Pin Function Description
============ ========== =========================================
PF3 INT MAC-PHY interrupt signal
PB4 MISO SPI Master In Slave Out
PB5 MOSI SPI Master Out Slave In
PB3 CLK SPI Clock
PD14 CS SPI Chip Select
============ ========== =========================================
The ``oa_tc6`` configuration is additionally equipped with the ``plcatool`` utility. This allows configuration of the Physical Layer Collision Avoidance (PLCA) functionality
in 10BASE-T1S PHYs.