Boot Linux on ESP32-S3

[rudi ;-)]

Hi Folks

After a few "ESP" apprenticeship years, I have arrived at my destination:

Booting Linux on an ESP32 directly.

if you want also try Boot Linux directly on an ESP32-S3 you could have a look to the fantastic Wiki by jcmvbkbc

Also there is born a Playground with diverse Things to come - and you perhabs want see too.

Booting Linux on ESP32-S3 -
It's working!
- done!

All the Best for you guys
greetings fly out to friends all over the globe


Best wishes
rudi

booting_linux_on_esp32-s3.png (132.75 KiB) Viewed 87509 times

[username]

Thanks rudi for the update.
I have to ask... Wonder why they didn't choose 240mhz. looks like they have it set to 160mhz.
Lastly, though it boots, what can we really do with such limited ram?

[rudi ;-)]

I have to ask... Wonder why they didn't choose 240mhz. looks like they have it set to 160mhz.

i heard you, - here you are 240 MHz,

[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] NR_IRQS: 33
[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 0.000000] clocksource: ccount: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7963585194 ns
[ 0.000081] sched_clock: 32 bits at 240MHz, resolution 4ns, wraps every 8947848189ns
[ 0.008099] Calibrating delay loop (skipped)... 240.00 BogoMIPS preset
[ 0.014307] pid_max: default: 4096 minimum: 301
[ 0.019108] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.026465] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.070816] rcu: Hierarchical SRCU implementation.
[ 0.071445] rcu: Max phase no-delay instances is 1000.
[ 0.083606] devtmpfs: initialized


...

the first hello world on the target you know?
it's a cross compiled rootfs,
done!



buildroot login: root
Password:
Jan 1 00:09:18 login[56]: root login on 'console'
~ # helloworld
Hello World

CPU count : 1
CPU list : 0
vendor_id : Tensilica
model : Xtensa LX7.0.12
core ID : LX7_ESP32_S3_MP
build ID : 0x90f1f
config ID : c2f0fffe:23090f1f
byte order : little
cpu MHz : 240.00
bogomips : 480.00
flags : nmi debug ocd density boolean loop nsa minmax sext clamps mac16 mul16 mul32 mul32h fpu s32c1i
physical aregs : 64
misc regs : 4
ibreak : 2
dbreak : 2
num ints : 32
ext ints : 26
int levels : 6
timers : 3
debug level : 6
icache line size: 4
icache ways : 1
icache size : 0
icache flags :
dcache line size: 16
dcache ways : 1
dcache size : 0
dcache flags :
Segmentation fault
~ #


also if too fast, 80MHz - we can switch. WoWZa

Lastly, though it boots, what can we really do with such limited ram?

..we have a switching #PSRAMBANK btw..
also the second CPU is on the way



best wishes
rudi

ps
you have an ESP32-S3-N8R8 ?
You want try? All things are online if you need.

[username]

awesome! Next time I do my online order I'll pick one up and try.

[rudi ;-)]

awesome! Next time I do my online order I'll pick one up and try.

update:
29 May 2023
blinky , it's working fine.

Just in time happens: SDMC / USB Host ( mounting flash drive )
Next driver step: I2C / SPI

best wishes
rudi

[rudi ;-)]

update:
- native micropython -just for show up- port
- linux port add to the boot partitions bootloader

hi folks

you can use micropython on this linux port

test firmware uploaded

example test:
ESP32-S3 with 16MB quad flash and 8 MB quad psram
example on m5stackCoreS3
- fw for your own test

ESP32-S3 with 8MB quad flash and 8 MB octal psram
example on
- ESP32-S3-DevKit N8R8
- olimex ESP32-S3-DevKit-Lipo OSHW board
- fw for your own test

mpy_on_liosti_showup1.png (25.68 KiB) Viewed 82541 times

the hello world ( blinky )

mpy_on_liosti.png (32.6 KiB) Viewed 82541 times

also the linux port was add to the boot partition bootloader

bootpartitions_up.png (75.11 KiB) Viewed 82541 times

best wishes
rudi

[rudi ;-)]

update
======

WIFI on S3 Linux - your wireless connect

by using a small customized expanded ESP-Hosted

ping @ESPRESSIF
... done!

best wishes
rudi

[rudi ;-)]

update:
=======
"SPECIALCLIENT ONLY" engineering WROOM sized ESP32-S3 ( without castellated holes )




ESP32-S3-WoWZa with
- N256R256
- N512R512
- N1GR1G
with castellated holes
pin compatible with ESP32-S2-SOLO, ESP32-S3-WROOM soon available for more testing and setups for Xtensa S3 Linux and ESP-IDF as well.




we get 256Mbit, 512Mbit and 1Gbit PSRAM Option now. the ESP32-S3 supports 1GB ( one giga byte ) PSRAM
as soon as possible the market has more as 1Gbit ( 128 mega byte ) available, i will update here
we are technical on market stand available now by 1/8 from what ESP32-S3 would be can do in one off-package.

JFYI: ESP32-S3 supports up to 1 GB off-package flash and 1 GB off-package RAM. If VDD_SPI is used to supply
power, make sure to select the appropriate off-package flash and RAM according to the power voltage on
VDD_SPI (1.8 V/3.3 V). It is recommended to add a zero-ohm series resistor on the SPI communication lines to
lower the driving current, reduce interference to RF, adjust timing, and better shield from interference.

best wishes
rudi

[rudi ;-)]

update:

Remote Build by ESP32-S3 SSH Client which runs #jcmvbkbc #esp32s3 #linux #esp32 S3 port

10. Aug 2023

the YT Video shows all steps:
( JFYI: i did the same technic ( remote compile on an NFS/SSH Server ) june/2016 for the ESP8266
whats not new is - but new is, the Linux SSH client on the ESP32-S3 MCU can trigger this by self on demand
showing simple things by second SSH client which can be " a script" i hope you get the idea behind -
there is also now a 100GB NFS Share mountet which we use as executable space for the ESP32-S3 - and that is amazing!
we can run example 2 different mpy versions same time, the one from S3Linux userspace, and the second from the
"100GB Developer/cloud live compilation" - we see live the change of each compilation, not need any more,
rebuild rootfs ( userspace ) 100x and reflash ESP32-S3 - we do simple the Develop in the mounted CLOUD SPACE.

• remote build by ESP32-S3 SSH client which runs #jcmvbkbc #esp32s3 #linux #esp32 S3 port

• ESP32-S3 runs #jcmvbkbc #esp32s3 #linux #esp32 S3 port which has also wifi and SSH support.

• on the ESP32-S3 also runs native "posix" micropython and LUA ..

• we connect from a PC by an SSH Client the ESP32-S3 (150) which runs a SSH Server.

• the ESP32-S3 is also connected over wifi to the internet

• we connect on ESP32-S3 ssh client internet timeserver and update local time on ESP32-S3.

• we connect then cloud and mount the cloud to the ESP32-S3 as a shared folder which has 100GB space .

• we serve to the cloud developer folder and cat the hi.c file.

• we connect also a second putty ssh connection to the ESP32-S3 ssh server.

• then we connect with the second ssh client on ESP32-S3 to the Developer Server (67) and serve to the cloud developer folder.

• now we crosscompile the hi.c and run on the first ssh client the build

• we do this moretime and patch also

• last but not least ESP32-S3 runs binary build micropython from cloud share in the first ESP32-S3 client and also lua from ESP32-S3 userspace in the second SSH client same time..

( LUA YT Video ) also Micropyton installed



NFS Client runs on S3Linux and mounts a NFS Share (100GB) over WiFi




local console runs on wifi ssh server, 2 ssh clients connected per wifi and runs micropython port.
is this the world's first micropython server on a MCU?


run example 2 different mpy versions same time, the one from S3Linux userspace, and the second from the
"100GB Developer/cloud live compilation"

double_mpy.png (282.68 KiB) Viewed 78500 times

txs_.png (399.8 KiB) Viewed 78500 times

best wishes
rudi

[yokonav]

Hi,

What are the steps to include micropython and lua when using the jcmvbkbc/rebuild-esp32s3-linux-wifi.sh script?

Thanks!