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STM32MP157C-EV1.png
Let's start Develop on Arm® Cortex®-A7
Step category in.png Unpack the board Step.png Populate the target and boot the image Step.png Execute basic commands Step.png Use the demo launcher Step category out.png


1. Overview[edit source]↑

This stage explains how to connect the Linux terminal of your board to your host computer through the ST-LINK/V2-1.
Then you can see how to execute basic commands with the Linux command line interface in order to be familiarized with the Linux console.

2. The serial terminal[edit source]↑

The serial terminal allows you to communicate with the board trough an UART serial interface.

  • Install minicom
 sudo apt-get install minicom
  • Get the ttyACM device instance that needs to be used to access the ST-LINK/V2-1
 ls /dev/ttyACM*
/dev/ttyACM0
  • Connect the minicom to the /dev/ttyACM0 device
 minicom -D /dev/ttyACM0
Welcome to minicom 2.7

OPTIONS: I18n 
Compiled on Nov 15 2018, 20:18:47.
Port /dev/ttyACM0, 15:56:03

Press CTRL-A Z for help on special keys
  • Press the reset button to reset the board. You should see logs displayed in the minicom window

For ecosystem release v1.2.0 More info.png: 

NOTICE:  Model: STMicroelectronics STM32MP157C eval daughter on eval mother
NOTICE:  Board: MB1263 Var1 Rev.C-01
INFO:    Reset reason (0x14):
INFO:      Pad Reset from NRST
INFO:    PMIC version = 0x10
INFO:    Using SDMMC
INFO:      Instance 1
INFO:    Boot used partition fsbl1
NOTICE:  BL2: v2.0-r3.0(debug):
NOTICE:  BL2: Built : 13:13:37, Oct  2 2018
INFO:    BL2: Doing platform setup
INFO:    RAM: DDR3-1066/888 bin G 2x4Gb 533MHz v1.45
INFO:    Memory size = 0x40000000 (1024 MB)
INFO:    BL2 runs SP_MIN setup
INFO:    BL2: Loading image id 4
INFO:    Loading image id=4 at address 0x2ffef000
INFO:    Image id=4 loaded: 0x2ffef000 - 0x30000000
INFO:    BL2: Loading image id 5
INFO:    Loading image id=5 at address 0xc0100000
INFO:    STM32 Image size : 815145
WARNING: Skip signature check (header option)
INFO:    Image id=5 loaded: 0xc0100000 - 0xc01c7029
NOTICE:  BL2: Booting BL32
INFO:    Entry point address = 0x2ffef000
INFO:    SPSR = 0x1d3
NOTICE:  SP_MIN: v2.0-r3.0(debug):
NOTICE:  SP_MIN: Built : 13:13:37, Oct  2 2018
INFO:    ARM GICv2 driver initialized
INFO:    stm32mp HSI (18): Secure only
INFO:    stm32mp HSE (20): Secure only
INFO:    stm32mp PLL2 (27): Secure only
INFO:    stm32mp PLL2_R (30): Secure only
INFO:    SP_MIN: Initializing runtime services
INFO:    SP_MIN: Preparing exit to normal world


U-Boot 2018.11-stm32mp-r4 (Nov 14 2018 - 16:10:06 +0000)

CPU: STM32MP157CAA Rev.B
Model: STMicroelectronics STM32MP157C eval daughter on eval mother
Board: stm32mp1 in trusted mode (st,stm32mp157c-ev1)
Board: MB1263 Var1 Rev.C-01
DRAM:  1 GiB
Clocks:
- MPU : 650 MHz
- MCU : 208.878 MHz
- AXI : 266.500 MHz
- PER : 24 MHz
- DDR : 533 MHz
NAND:  1024 MiB
MMC:   STM32 SDMMC2: 0, STM32 SDMMC2: 1
Loading Environment from EXT4... OK
In:    serial
Out:   serial
Err:   serial
Net:   eth0: ethernet@5800a000
Hit any key to stop autoboot:  0 
Boot over mmc0!
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:4...
Found U-Boot script /boot.scr.uimg
1628 bytes read in 1 ms (1.6 MiB/s)
## Executing script at c4100000
Scanning mmc 0:4...
Found /mmc0_stm32mp157c-ev1_extlinux/extlinux.conf
Retrieving file: /mmc0_stm32mp157c-ev1_extlinux/extlinux.conf
614 bytes read in 0 ms
Retrieving file: /splash.bmp
46180 bytes read in 3 ms (14.7 MiB/s)
Select the boot mode
1:      stm32mp157c-ev1-sdcard
2:      stm32mp157c-ev1-a7-examples-sdcard
3:      stm32mp157c-ev1-m4-examples-sdcard
Enter choice: 1:        stm32mp157c-ev1-sdcard
Retrieving file: /uImage
6722112 bytes read in 305 ms (21 MiB/s)
append: root=/dev/mmcblk0p6 rootwait rw console=ttySTM0,115200
Retrieving file: /stm32mp157c-ev1.dtb
78033 bytes read in 4 ms (18.6 MiB/s)
## Booting kernel from Legacy Image at c2000000 ...
   Image Name:   Linux-4.19.94
   Created:      2020-01-09   9:19:10 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    6722048 Bytes = 6.4 MiB
   Load Address: c2000040
   Entry Point:  c2000040
   Verifying Checksum ... OK
## Flattened Device Tree blob at c4000000
   Booting using the fdt blob at 0xc4000000
   XIP Kernel Image ... OK
   Using Device Tree in place at c4000000, end c40160d0
SF: Detected mx25l51235f with page size 256 Bytes, erase size 64 KiB, total 64 MiB

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.94 (oe-user@oe-host) (gcc version 8.2.0 (GCC)) #1 SMP PREEMPT Thu Jan 9 09:19:10 UTC 2020
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: STMicroelectronics STM32MP157C eval daughter on eval mother
[    0.000000] Memory policy: Data cache writealloc
...
[    4.017152] systemd[1]: Detected architecture arm.

Welcome to ST OpenSTLinux - Weston - (A Yocto Project Based Distro) 2.6-openstlinux-20-02-19 (thud)!

[    4.074383] systemd[1]: Set hostname to <stm32mp1>.
[    4.083708] systemd[1]: Hardware watchdog 'STM32 Independent Watchdog', version 0
[    4.090842] systemd[1]: Set hardware watchdog to 30s.
...
[  OK  ] Started Update UTMP about System Runlevel Changes.

ST OpenSTLinux - Weston - (A Yocto Project Based Distro) 2.6-openstlinux-20-02-19 stm32mp1 ttySTM0

stm32mp1 login: root (automatic login)

root@stm32mp1:~#

For ecosystem release v1.1.0 More info.png:

For ecosystem release v1.0.0 More info.png:

3. Basic commands[edit source]↑

3.1. Printing distribution specific information[edit source]↑

For ecosystem release v1.2.0 More info.png: 

 lsb_release -a
LSB Version:    core-5.0-noarch:core-5.0-arm
Distributor ID: openstlinux-weston
Description:    ST OpenSTLinux - Weston - (A Yocto Project Based Distro) 2.6-openstlinux-20-02-19
Release:        2.6-openstlinux-20-02-19
Codename:       thud

For ecosystem release v1.1.0 More info.png:

For ecosystem release v1.0.0 More info.png:

3.2. Printing system information[edit source]↑

For ecosystem release v1.2.0 More info.png: 

 uname -a
Linux stm32mp1 4.19.94 #1 SMP PREEMPT Thu Jan 9 09:19:10 UTC 2020 armv7l armv7l armv7l GNU/Linux

For ecosystem release v1.1.0 More info.png:

For ecosystem release v1.0.0 More info.png:

3.3. Printing Linux kernel and GCC versions[edit source]↑

For ecosystem release v1.2.0 More info.png: 

 cat /proc/version
Linux version 4.19.94 (oe-user@oe-host) (gcc version 8.2.0 (GCC)) #1 SMP PREEMPT Thu Jan 9 09:19:10 UTC 2020

For ecosystem release v1.1.0 More info.png:

For ecosystem release v1.0.0 More info.png:

3.4. Printing the amount of disk space available on all mounted file systems[edit source]↑

 df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       719M  360M  321M  53% /
devtmpfs        150M     0  150M   0% /dev
tmpfs           214M     0  214M   0% /dev/shm
tmpfs           214M   12M  203M   6% /run
tmpfs           214M     0  214M   0% /sys/fs/cgroup
tmpfs           214M  4.0K  214M   1% /tmp
/dev/mmcblk0p4   58M  8.2M   46M  16% /boot
tmpfs           214M   92K  214M   1% /var/volatile
/dev/mmcblk0p7  6.4G   68M  6.1G   2% /usr/local
/dev/mmcblk0p5   15M  8.2M  5.3M  61% /vendor
tmpfs            43M     0   43M   0% /run/user/0


3.5. ssh connection (only if Ethernet cable is connected)[edit source]↑

  • Get the IP address of your board
 ip addr show eth0                                                                           
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet xx.xx.xx.xx/xx brd xx.xx.xx.xx scope global dynamic eth0
       valid_lft 159045sec preferred_lft 159045sec
    inet6 xxxx::xx:xx:xx:xx/64 scope link 
       valid_lft forever preferred_lft forever
  • On the host computer connect the terminal to the board using ssh
 ssh root@xx.xx.xx.xx
root@stm32mp1:~#


Back button.png Overview button.png Next button.png




Universal Asynchronous Receiver/Transmitter

Power Management Integrated Circuit

Boot Loader stage 2

Random Access Memory (Early computer memories generally hadserial access. Memories where any given address can be accessed when desired were then called "random access" to distinguish them from the memories where contents can only be accessed in a fixed order. The term is used today forvolatile random-accesssemiconductor memories.)

Boot Loader stage 3-2

High Speed Internal oscillator (STM32 clock source) or High Speed Synchronous Serial Interface (MIPI® Alliance standard)

High Speed External oscillator (STM32 clock source)

Das U-Boot -- the Universal Boot Loader (see U-Boot_overview)

Central processing unit

Microprocessor Unit

Microcontroller Unit (MCUs have internal flash memory and are intended to operate with a minimum amount of external support ICs. They commonly are a self-contained, system-on-chip (SoC) designs.)

Doubledata rate (memory domain)

MultimediaCard

Execute In Place. Method of executing programs directly from long term storage rather than copying it into RAM (linked to NOR Flash).

symetric multiprocessing

Direct Memory Access

Advanced Linux sound architecture

Virtual File System

Secure digital

Device Tree

Power State Coordination Interface

Secure Monitor Call

uniprocessor

Universal Asynchronous Receiver/Transmitter

Power Management Integrated Circuit

Boot Loader stage 2

Random Access Memory (Early computer memories generally hadserial access. Memories where any given address can be accessed when desired were then called "random access" to distinguish them from the memories where contents can only be accessed in a fixed order. The term is used today forvolatile random-accesssemiconductor memories.)

Boot Loader stage 3-2

High Speed Internal oscillator (STM32 clock source) or High Speed Synchronous Serial Interface (MIPI® Alliance standard)

High Speed External oscillator (STM32 clock source)

Das U-Boot -- the Universal Boot Loader (see U-Boot_overview)

Central processing unit

Microprocessor Unit

Microcontroller Unit (MCUs have internal flash memory and are intended to operate with a minimum amount of external support ICs. They commonly are a self-contained, system-on-chip (SoC) designs.)

Doubledata rate (memory domain)

MultimediaCard

Execute In Place. Method of executing programs directly from long term storage rather than copying it into RAM (linked to NOR Flash).

symetric multiprocessing

Direct Memory Access

Advanced Linux sound architecture

Virtual File System

Secure digital

Device Tree

Power State Coordination Interface

Secure Monitor Call

uniprocessor

Mobile Industry Processor Interface, open membership organization that includes leading companies in the mobile industry that share the objective of defining and promoting open specifications for interfaces inside mobile terminals, see MIPI® Alliance standard web site https://www.mipi.org

Flash memory shortened to gain space in titles, tables and block diagrams

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