251 lines
7.4 KiB
ReStructuredText
251 lines
7.4 KiB
ReStructuredText
|
.. zephyr:board:: stm32mp257f_ev1
|
||
|
|
|
||
|
|
Overview
|
||
|
|
********
|
||
|
|
|
||
|
|
The STM32MP257F-EV1 Evaluation board is designed as a complete demonstration
|
||
|
|
and development platform for the STMicroelectronics STM32MP257F microprocessor
|
||
|
|
based on Arm |reg| dual-core Cortex |reg|-A35 (1.5 GHz) and Cortex |reg|-M33
|
||
|
|
(400 MHz), and the STPMIC25APQR companion chip.
|
||
|
|
Zephyr OS is ported to run on the Cortex |reg|-M33 core, as a coprocessor of
|
||
|
|
the Cortex |reg|-A35 core.
|
||
|
|
|
||
|
|
Features:
|
||
|
|
=========
|
||
|
|
|
||
|
|
- STM32MP257FAI3 microprocessor featuring dual-core Arm |reg| Cortex |reg|-A35,
|
||
|
|
a Cortex |reg|-M33 and a Cortex |reg|-M0+ in a TFBGA436 package
|
||
|
|
- ST power management STPMIC25APQR
|
||
|
|
- Two 16-Gbit DDR4 DRAMs
|
||
|
|
- 512-Mbit (64 Mbytes) S-NOR flash memory
|
||
|
|
- 32-Gbit (4 Gbytes) eMMC v5.0
|
||
|
|
- Three 1-Gbit/s Ethernet (RGMII) with TSN switch compliant with IEEE-802.3ab
|
||
|
|
- High-speed USB Host 2-port hub
|
||
|
|
- High-speed USB Type-C |reg| DRP
|
||
|
|
- Four user LEDs
|
||
|
|
- Two user, one tamper, and one reset push-buttons
|
||
|
|
- One wake-up button
|
||
|
|
- Four boot pin switches
|
||
|
|
- Board connectors:
|
||
|
|
|
||
|
|
- Three Ethernet RJ45
|
||
|
|
- Two USB Host Type-A
|
||
|
|
- USB Type-C |reg|
|
||
|
|
- microSD |trade| card holder
|
||
|
|
- Mini PCIe
|
||
|
|
- Dual-lane MIPI CSI-2 |reg| camera module expansion connector
|
||
|
|
- Two CAN FD
|
||
|
|
- LVDS
|
||
|
|
- MIPI10
|
||
|
|
- GPIO expansion connector
|
||
|
|
- mikroBUS |trade| expansion connector
|
||
|
|
- VBAT for power backup
|
||
|
|
|
||
|
|
- On-board STLINK-V3EC debugger/programmer with USB re-enumeration capability
|
||
|
|
Two Virtual COM ports (VCPs), and debug ports (JTAG/SWD)
|
||
|
|
- Mainlined open-source Linux |reg| STM32 MPU OpenSTLinux Distribution and
|
||
|
|
STM32CubeMP2 software with examples
|
||
|
|
- Linux |reg| Yocto project, Buildroot, and STM32CubeIDE as
|
||
|
|
development environments
|
||
|
|
|
||
|
|
More information about the board can be found at the
|
||
|
|
`STM32MP257F-EV1 website`_.
|
||
|
|
|
||
|
|
Hardware
|
||
|
|
********
|
||
|
|
|
||
|
|
Cores:
|
||
|
|
======
|
||
|
|
|
||
|
|
- 64-bit dual-core Arm |reg| Cortex |reg|-A35 with 1.5 GHz max frequency
|
||
|
|
- 32-Kbyte I + 32-Kbyte D level 1 cache for each Cortex |reg|-A35 core
|
||
|
|
- 512-Kbyte unified level 2 cache
|
||
|
|
- Arm |reg| NEON |trade| and Arm |reg| TrustZone |reg|
|
||
|
|
- 32-bit Arm |reg| Cortex |reg|-M33 with FPU/MPU, Arm |reg| TrustZone |reg|,
|
||
|
|
and 400 MHz max frequency
|
||
|
|
- L1 16-Kbyte ICache / 16-Kbyte DCache for Cortex |reg|-M33
|
||
|
|
- 32-bit Arm |reg| Cortex |reg|-M0+ in SmartRun domain with 200 MHz max
|
||
|
|
frequency (up to 16 MHz in autonomous mode)
|
||
|
|
|
||
|
|
Memories:
|
||
|
|
=========
|
||
|
|
|
||
|
|
- External DDR memory up to 4 Gbytes
|
||
|
|
- Up to DDR3L-2133 16/32-bit
|
||
|
|
- Up to DDR4-2400 16/32-bit
|
||
|
|
- Up to LPDDR4-2400 16/32-bit
|
||
|
|
- 808-Kbyte internal SRAM: 256-Kbyte AXI SYSRAM, 128-Kbyte AXI video RAM or
|
||
|
|
SYSRAM extension, 256-Kbyte AHB SRAM, 128-Kbyte AHB SRAM with ECC in backup
|
||
|
|
domain, 8-Kbyte SRAM with ECC in backup domain, 32 Kbytes in SmartRun domain
|
||
|
|
- Two Octo-SPI memory interfaces
|
||
|
|
- Flexible external memory controller with up to 16-bit data bus: parallel
|
||
|
|
interface to connect external ICs, and SLC NAND memories with up to 8-bit ECC
|
||
|
|
|
||
|
|
Power
|
||
|
|
=====
|
||
|
|
|
||
|
|
- STPMIC25 for voltage regulation (multiple buck/LDO regulators)
|
||
|
|
- USB-C or 5V DC jack power input
|
||
|
|
- VBAT backup battery connector (RTC, backup SRAM)
|
||
|
|
|
||
|
|
Clock management
|
||
|
|
================
|
||
|
|
|
||
|
|
- External oscillators:
|
||
|
|
- 32.768 kHz LSE crystal
|
||
|
|
- 40 MHz HSE crystal
|
||
|
|
- Internal oscillators:
|
||
|
|
- 64 MHz HSI oscillator
|
||
|
|
- 4 MHz CSI oscillator
|
||
|
|
- 32 kHz LSI oscillator
|
||
|
|
- Five separate PLLs with integer and fractional mode
|
||
|
|
|
||
|
|
Security/Safety
|
||
|
|
===============
|
||
|
|
|
||
|
|
- Secure boot, TrustZone |reg| peripherals, active tamper, environmental
|
||
|
|
monitors, display secure layers, hardware accelerators
|
||
|
|
- Complete resource isolation framework
|
||
|
|
|
||
|
|
Connectivity
|
||
|
|
============
|
||
|
|
|
||
|
|
- 3x Gigabit Ethernet (RGMII, TSN switch capable)
|
||
|
|
- 2x CAN FD
|
||
|
|
- USB 2.0 High-Speed Host (dual-port)
|
||
|
|
- USB Type-C |reg| DRP
|
||
|
|
- mikroBUS |trade| expansion
|
||
|
|
- GPIO expansion connector
|
||
|
|
|
||
|
|
Display & Camera
|
||
|
|
================
|
||
|
|
|
||
|
|
- DSI interface (4-lane)
|
||
|
|
- LVDS interface (4-lane)
|
||
|
|
- Camera CSI-2 interface (2-lane)
|
||
|
|
|
||
|
|
Debug
|
||
|
|
=====
|
||
|
|
|
||
|
|
- STLINK-V3EC (onboard debugger with VCP, JTAG and SWD)
|
||
|
|
|
||
|
|
More information about STM32MP257F can be found here:
|
||
|
|
|
||
|
|
- `STM32MP257F on www.st.com`_
|
||
|
|
|
||
|
|
Supported Features
|
||
|
|
==================
|
||
|
|
|
||
|
|
.. zephyr:board-supported-hw::
|
||
|
|
|
||
|
|
Connections and IOs
|
||
|
|
===================
|
||
|
|
|
||
|
|
STM32MP257F-EV1 Evaluation Board schematic is available here:
|
||
|
|
`STM32MP257F-EV1 Evaluation board schematics`_
|
||
|
|
|
||
|
|
System Clock
|
||
|
|
============
|
||
|
|
|
||
|
|
Cortex |reg|-A35
|
||
|
|
----------------
|
||
|
|
|
||
|
|
Not yet supported in Zephyr.
|
||
|
|
|
||
|
|
Cortex |reg|-M33
|
||
|
|
----------------
|
||
|
|
|
||
|
|
The Cortex |reg|-M33 Core is configured to run at a 400 MHz clock speed.
|
||
|
|
|
||
|
|
Programming and Debugging
|
||
|
|
*************************
|
||
|
|
|
||
|
|
.. zephyr:board-supported-runners::
|
||
|
|
|
||
|
|
Prerequisite
|
||
|
|
============
|
||
|
|
|
||
|
|
Before you can run Zephyr on the STM32MP257F-EV1 Evaluation board, you need to
|
||
|
|
set up the Cortex |reg|-A35 core with a Linux |reg| environment. The Cortex
|
||
|
|
|reg|-M33 core runs Zephyr as a coprocessor, and it requires the Cortex
|
||
|
|
|reg|-A35 to load and start the firmware using remoteproc.
|
||
|
|
|
||
|
|
One way to set up the Linux environment is to use the official ST
|
||
|
|
OpenSTLinux distribution, following the `Starter Package`_. (more information
|
||
|
|
about the procedure can be found in the `STM32MPU Wiki`_)
|
||
|
|
|
||
|
|
Loading the firmware
|
||
|
|
====================
|
||
|
|
|
||
|
|
Once the OpenSTLinux distribution is installed on the board, the Cortex |reg|
|
||
|
|
-A35 is responsible (in the current distribution) for loading the Zephyr
|
||
|
|
firmware image in DDR and/or SRAM and starting the Cortex |reg| -M33 core. The
|
||
|
|
application can be built using west, taking the :zephyr:code-sample:`blinky` as
|
||
|
|
an example.
|
||
|
|
|
||
|
|
.. zephyr-app-commands::
|
||
|
|
:zephyr-app: samples/basic/blinky
|
||
|
|
:board: stm32mp257f_ev1/stm32mp257fxx/m33
|
||
|
|
:goals: build
|
||
|
|
|
||
|
|
The firmware can be copied to the board file system and started with the Linux
|
||
|
|
remoteproc framework. (more information about the procedure can be found in the
|
||
|
|
`STM32MP257F boot Cortex-M33 firmware`_)
|
||
|
|
|
||
|
|
Debugging
|
||
|
|
=========
|
||
|
|
Applications can be debugged using OpenOCD and GDB. The OpenOCD files can be
|
||
|
|
found at `device-stm-openocd`_.
|
||
|
|
The firmware must first be started by the Cortex |reg|-A35. The debugger can
|
||
|
|
then be attached to the running Zephyr firmware using OpenOCD.
|
||
|
|
|
||
|
|
- Build the sample:
|
||
|
|
|
||
|
|
.. zephyr-app-commands::
|
||
|
|
:zephyr-app: samples/basic/blinky
|
||
|
|
:board: stm32mp257f_ev1/stm32mp257fxx/m33
|
||
|
|
:goals: build
|
||
|
|
|
||
|
|
- Copy the firmware to the board, load it and start it with remoteproc
|
||
|
|
(`STM32MP257F boot Cortex-M33 firmware`_). The orange LED should be blinking.
|
||
|
|
- Attach to the target:
|
||
|
|
|
||
|
|
.. code-block:: console
|
||
|
|
|
||
|
|
$ west attach
|
||
|
|
|
||
|
|
References
|
||
|
|
==========
|
||
|
|
|
||
|
|
.. target-notes::
|
||
|
|
|
||
|
|
.. _STM32MP257F-EV1 website:
|
||
|
|
https://www.st.com/en/evaluation-tools/stm32mp257f-ev1.html#overview
|
||
|
|
|
||
|
|
.. _STM32MP257F-EV1 Evaluation board User Manual:
|
||
|
|
https://www.st.com/resource/en/user_manual/um3359-evaluation-board-with-stm32mp257f-mpu-stmicroelectronics.pdf
|
||
|
|
|
||
|
|
.. _STM32MP257F-EV1 Evaluation board schematics:
|
||
|
|
https://www.st.com/resource/en/schematic_pack/mb1936-mp257f-x-d01-schematic.pdf
|
||
|
|
|
||
|
|
.. _STM32MP25xC/F Evaluation board datasheet:
|
||
|
|
https://www.st.com/resource/en/datasheet/stm32mp257c.pdf
|
||
|
|
|
||
|
|
.. _STM32MP257F on www.st.com:
|
||
|
|
https://www.st.com/en/microcontrollers-microprocessors/stm32mp257f.html
|
||
|
|
|
||
|
|
.. _STM32MP257F reference manual:
|
||
|
|
https://www.st.com/resource/en/reference_manual/rm0457-stm32mp25xx-advanced-armbased-3264bit-mpus-stmicroelectronics.pdf
|
||
|
|
|
||
|
|
.. _STM32MP257F boot Cortex-M33 firmware:
|
||
|
|
https://wiki.st.com/stm32mpu/wiki/Linux_remoteproc_framework_overview#Remote_processor_boot_through_sysfs
|
||
|
|
|
||
|
|
.. _Starter Package:
|
||
|
|
https://wiki.st.com/stm32mpu/wiki/STM32MP25_Evaluation_boards_-_Starter_Package
|
||
|
|
|
||
|
|
.. _STM32MPU Wiki:
|
||
|
|
https://wiki.st.com/stm32mpu/wiki/Main_Page
|
||
|
|
|
||
|
|
.. _device-stm-openocd:
|
||
|
|
https://github.com/STMicroelectronics/device-stm-openocd/tree/main
|