CORE MP135 - () ◉ - ◉)＜さいとてつや

CORE MP135

https://gyazo.com/98db2037c850c60ee74041c8008a55fa https://docs.m5stack.com/en/core/M5CoreMP135

M5Stackの販売ページ

スイッチサイエンスの販売ページ

ドキュメント

CoreMP135 image burning

CoreMP135 development

CoreMP135 Network Management

CoreMP135 Buildroot

/icons/github.icon

ファクトリイメージ

rootのパスワードはroot

code:/etc/rc.local

#!/bin/sh

/sbin/modprobe fb_ili9341

echo 1 4 1 7 > /proc/sys/kernel/printk

ip link set can0 up type can bitrate 250000

ip link set can1 up type can bitrate 250000

/usr/local/m5stack/lt8618sxb_mcu_config &> /dev/null &

tinyplay /usr/local/m5stack/chexian.wav &> /dev/null &

/usr/local/m5stack/dist/core135_start_ui 2>&1 > /dev/null &

# otg master usb

# echo 130 > /sys/class/gpio/export && echo out > /sys/class/gpio/gpio130/direction && echo 1 > /sys/class/gpio/gpio130/value

# echo "host" >/sys/class/usb_role/49000000.usb-otg-role-switch/role

echo "device" >/sys/class/usb_role/49000000.usb-otg-role-switch/role

# open bus 5V out

echo 131 > /sys/class/gpio/export && echo out > /sys/class/gpio/gpio131/direction && echo 1 > /sys/class/gpio/gpio131/value

code:console

# root@CoreMP135:~# uname -a

Linux CoreMP135 5.15.24 #1 SMP PREEMPT Tue Apr 23 15:40:09 CST 2024 armv7l GNU/Linux

# cat /etc/os-release

NAME=Buildroot

VERSION=2022.11.2

ID=buildroot

VERSION_ID=2022.11.2

PRETTY_NAME="Buildroot 2022.11.2"

CoreMP135_buildroot_20240418

ファクトリと同じだが，設定がいろいろ異なる

rootのパスワードはなし

code:console

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Welcome to CoreMP135, Powered by M5Stack.

CoreMP135 login:

code:/etc/rc.local

#!/bin/sh

"$1" = "stop" && exit 0

modprobe fb_ili9341_m5

FRAMEBUFFER=/dev/fb1 fbv /usr/local/m5stack/logo.jpg &> /dev/null &

echo 1 4 1 7 > /proc/sys/kernel/printk

tinyplay /usr/local/m5stack/logo.wav &> /dev/null &

# set otg master

# echo 130 > /sys/class/gpio/export && echo out > /sys/class/gpio/gpio130/direction && echo 1 > /sys/class/gpio/gpio130/value

# echo "host" >/sys/class/usb_role/49000000.usb-otg-role-switch/role

echo "device" >/sys/class/usb_role/49000000.usb-otg-role-switch/role

# set bus 5V out

# echo 131 > /sys/class/gpio/export && echo out > /sys/class/gpio/gpio131/direction && echo 1 > /sys/class/gpio/gpio131/value

code:console

root@CoreMP135:~# uname -a

Linux CoreMP135 5.15.24 #1 SMP PREEMPT Tue Apr 23 15:40:09 CST 2024 armv7l GNU/Linux

# cat /etc/os-release

NAME=Buildroot

VERSION=2021.05-10169-gb885d5525a

ID=buildroot

VERSION_ID=2023.02.2

PRETTY_NAME="Buildroot 2023.02.2"

CoreMP135_debian12_20240418

rootのパスワードはroot

code:/etc/rc.local

#!/bin/sh

"$1" = "stop" && exit 0

modprobe fb_ili9341

FRAMEBUFFER=/dev/fb1 fbv /usr/local/m5stack/logo.jpg &> /dev/null &

echo 1 4 1 7 > /proc/sys/kernel/printk

usr/local/m5stack/lt8618sxb_mcu_config &> /dev/null &

tinyplay /usr/local/m5stack/logo.wav &> /dev/null &

# set otg master

# echo 130 > /sys/class/gpio/export && echo out > /sys/class/gpio/gpio130/direction && echo 1 > /sys/class/gpio/gpio130/value

# echo "host" >/sys/class/usb_role/49000000.usb-otg-role-switch/role

echo "device" >/sys/class/usb_role/49000000.usb-otg-role-switch/role

# set bus 5V out

# echo 131 > /sys/class/gpio/export && echo out > /sys/class/gpio/gpio131/direction && echo 1 > /sys/class/gpio/gpio131/value

code:console

root@CoreMP135:~# uname -a

Linux CoreMP135 5.15.24-g89a51e8ac898-dirty #28 PREEMPT Tue Apr 16 10:49:21 CST 2024 armv7l GNU/Linux

root@CoreMP135:~# cat /etc/debian_version

12.1

buildrootのビルド

WSL2環境でビルド

カレントを~/srcと想定する

公式のドキュメントCoreMP135 Buildrootはフォルダ名が間違っているので注意

Core135_buildroot→CoreMP135_buildroot

Core135_buildroot-external-st→CoreMP135_buildroot-external-st

/usr/local/m5stack/dist/core135_start_ui（ファクトリで起動するUI）は入らないので要確認

m5stack_coremp135_defconfigはカーネルv6.1ベース，m5stack_coremp135_5_15はカーネルv5.15ベース

CoreMP135_buildroot-external-st/board/m5stack/coremp135/overlay/etc/rc.localが/etc/rc.localになる

tinyplayをコメントしておけば音が出ない

code:console

cd ~/src

git clone https://github.com/m5stack/CoreMP135_buildroot.git

git clone https://github.com/m5stack/CoreMP135_buildroot-external-st.git

cd CoreMP135_buildroot

make BR2_EXTERNAL=../CoreMP135_buildroot-external-st/ m5stack_coremp135_defconfig

make -j4

output/images/sdcard.imgにイメージが生成される

code:console

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Welcome to CoreMP135, Powered by M5Stack.

CoreMP135 login: root

# uname -a

Linux CoreMP135 6.1.28 #1 SMP PREEMPT Mon May 6 18:43:16 JST 2024 armv7l GNU/Linux

# cat /etc/os-release

NAME=Buildroot

VERSION=-gb885d5525a

ID=buildroot

VERSION_ID=2023.02.2

PRETTY_NAME="Buildroot 2023.02.2"

パーティションサイズの拡張

CoreMP135 partition expansion

Core MP135の中にあるfdisk（Busybox）ではできないので，別のLinuxマシンでやる必要がある？

code:console

# fdisk /dev/mmcblk0

Found valid GPT with protective MBR; using GPT

Command (m for help): p

Disk /dev/mmcblk0: 61022208 sectors, 1124M

Logical sector size: 512

Disk identifier (GUID): f09afa2f-5924-4118-b0fa-ba2fbe79671d

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 61022174

Number Start (sector) End (sector) Size Name

1 34 199 84992 fsbl1

2 200 365 84992 fsbl2

3 366 3686 1660K fip

4 3687 7782 2048K u-boot-env

5 7783 253542 120M rootfs

Command (m for help):