Posts made by nnn

nnn

This issue has been resolved in the latest version, see issue.

nnn

A script to build Debian image is now available in the M5Stack repository.

CoreMP135_buildroot-external-st
https://github.com/m5stack/CoreMP135_buildroot-external-st/blob/st/2023.02.10/tools/creat_coremp135_debian12_image.sh
How to implement (Japanese)
https://qiita.com/nnn112358/items/44921e2470353653058e

nnn

This discussion will be continued below
https://github.com/m5stack/CoreMP135_buildroot-external-st/issues/3

nnn

This discussion will be continued below
https://github.com/m5stack/CoreMP135_buildroot-external-st/issues/2

nnn

@nnn

According to the data sheet, is the IO of UART6 fixed at startup?

Reference：
https://www.st.com/ja/microcontrollers-microprocessors/stm32mp135d.html

https://x.com/ciniml/status/1803093984778277271

nnn

@nnn

The uart6 in linux-dts was able to switch IO with rx-tx-swap.
The uart6 in uboot-dts seems to be fixed, unable to switch IO with rx-tx-swap.
Is there a HW issue with the Stm32MP135?

nnn

The boot serial console can be accessed from Grove Port.C on the CoreMP135, via USB serial.
U-Boot logs are output from Port.C pin 1 (non TX-RX swap signal), while the Linux console is output from Port.C pin 2 (with TX-RX swap signal).
I would like to see the U-Boot logs and Linux console aligned on the same IO.

U-Boot logs
from Port.C non TX-RX swap signal

NOTICE:  CPU: STM32MP135D Rev.Y
NOTICE:  Model: STMicroelectronics STM32MP135F-DK Discovery Board
NOTICE:  BL2: v2.6-stm32mp1-r1.0(release):2021.05-10169-gb885d5525a
NOTICE:  BL2: Built : 15:39:25, May 15 2024
NOTICE:  BL2: Booting BL32
optee optee: OP-TEE: revision 3.16 (b885d552)

U-Boot 2021.10-stm32mp-r1 (May 15 2024 - 15:39:22 +0800)

CPU: STM32MP135D Rev.?
Model: STMicroelectronics STM32MP135F-DK Discovery Board
Board: stm32mp1 in trusted mode (st,stm32mp135f-dk)
DRAM:  512 MiB
optee optee: OP-TEE: revision 3.16 (b885d552)
Clocks:
- MPU : 650 MHz
- AXI : 266.500 MHz
- PER : 24 MHz
- DDR : 533 MHz
WDT:   Started with servicing (32s timeout)
NAND:  0 MiB
MMC:   STM32 SD/MMC: 0
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
invalid MAC address 0 in OTP 00:00:00:00:00:00
Net:   No ethernet found.
Hit any key to stop autoboot:  0
Boot over mmc0!
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:5...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
160 bytes read in 20 ms (7.8 KiB/s)
1:      stm32mp135f-coremp135-buildroot
Retrieving file: /boot/zImage
7923832 bytes read in 579 ms (13.1 MiB/s)
append: root=/dev/mmcblk0p5 rw panic=5 quiet rootwait
Retrieving file: /boot/stm32mp135f-coremp135.dtb
68116 bytes read in 24 ms (2.7 MiB/s)
Kernel image @ 0xc2000000 [ 0x000000 - 0x78e878 ]
## Flattened Device Tree blob at c4000000
   Booting using the fdt blob at 0xc4000000
   Loading Device Tree to cffec000, end cffffa13 ... OK
gc2145@3c node not found - DT update aborted
FDT: cryp@54002000 node disabled for STM32MP135D Rev.?

Starting kernel ...

Linux logs
from Port.C with TX-RX swap signal

[    0.004005] /cpus/cpu@0 missing clock-frequency property
[    0.435138] stm32-cpufreq stm32-cpufreq: OPP-v2 not supported
Starting syslogd: OK
Starting klogd: OK
Starting modules: soundcore success, snd success, snd_timer success, snd_pcm success, snd_pcm_dmaengine success, snd_soc_core success, snd_soc_simple_card_utils success, snd_soc_audio_graph_card success, snd-soc-simple-card success, snd_soc_stm32_sai success, snd_soc_stm32_sai_sub success, cdc-acm success, libcomposite success, g_serial success, OK
Running sysctl: OK
Starting mdev... OK
Seeding 256 bits and crediting
Saving 256 bits of creditable seed for next boot
Starting tee-supplicant: Using device /dev/teepriv0.
OK
Starting network: OK
Starting dhcpcd...
dhcpcd-9.4.1 starting
DUID 00:01:00:01:2d:f9:ec:09:2a:88:82:9b:b0:f0
forked to background, child pid 177
[    5.966541] m_can_platform 4400e000.can can0: bit-timing not yet defined
[    5.974064] m_can_platform 4400e000.can can0: failed to open can device
[    5.988759] m_can_platform 4400f000.can can1: bit-timing not yet defined
[    5.994164] m_can_platform 4400f000.can can1: failed to open can device
Starting dropbear sshd: OK
Stopping /etc/rc.localOK

#     #  #######   #####   #######     #      #####   #    #
##   ##  #        #     #     #       # #    #     #  #   #
# # # #  #        #           #      #   #   #        #  #
#  #  #  ######    #####      #     #     #  #        ###
#     #        #        #     #     #######  #        #  #
#     #  #     #  #     #     #     #     #  #     #  #   #
#     #   #####    #####      #     #     #   #####   #    #
Welcome to CoreMP135, Powered by M5Stack.
CoreMP135 login:

Reference

https://x.com/ciniml/status/1791303454474014932

nnn

On M5 CoreMP135, the "poweroff" command does not shutdown properly. After some time, a reboot occurs.

The "reboot" command works correctly.

There is no difference between buildroot and Debian, and the same phenomenon occurs in the latest commit of buildroot on github.

Linux Log(USB serial connected to CoreMP135 Port.C, Log in root)

$ poweroff
Stopping /etc/rc.localOK
Stopping dropbear sshd: OK
Stopping dhcpcd...
stopped /sbin/dhcpcd (pid 177)
Stopping network: OK
Stopping tee-supplicant: FAIL
Seeding 256 bits and crediting
Saving 256 bits of creditable seed for next boot
Stopping mdev... stopped process in pidfile '/var/run/mdev.pid' (pid 138)
OK
Stopping modules: rmmod: can't unload module 'soundcore': Resource temporarily unavailable
rmmod: can't unload module 'snd': Resource temporarily unavailable
rmmod: can't unload module 'snd_timer': Resource temporarily unavailable
rmmod: can't unload module 'snd_pcm': Resource temporarily unavailable
rmmod: can't unload module 'snd_pcm_dmaengine': Resource temporarily unavailable
rmmod: can't unload module 'snd_soc_core': Resource temporarily unavailable
rmmod: can't unload module 'snd_soc_simple_card_utils': Resource temporarily unavailable
rmmod: can't unload module 'libcomposite': Resource temporarily unavailable
OK
Stopping klogd: OK
Stopping syslogd: OK
umount: devtmpfs busy - remounted read-only
The system is going down NOW!
Sent SIGTERM to all processes
Sent SIGKILL to all processes
Requesting system poweroff
[  235.243319] reboot: Power down
E/TC:0   Panic at core/arch/arm/plat-stm32mp1/pm/low_power.c:405 <stm32_enter_cstop_shutdown>
E/TC:0   TEE load address @ 0xde200000
E/TC:0   Call stack:
E/TC:0    0xde203f29
E/TC:0    0xde21c0f9
E/TC:0    0xde20a5bb
E/TC:0    0xde20af21
E/TC:0    0xde23e791
E/TC:0    0xde20b233
E/TC:0    0xde20b0dc


[    0.004017] /cpus/cpu@0 missing clock-frequency property
[    0.435184] stm32-cpufreq stm32-cpufreq: OPP-v2 not supported
Starting syslogd: OK
Starting klogd: OK
Starting modules: soundcore success, snd success, snd_timer success, snd_pcm success, snd_pcm_dmaengine success, snd_soc_core success, snd_soc_simple_card_utils success, snd_soc_audio_graph_card success, snd-soc-simple-card success, snd_soc_stm32_sai success, snd_soc_stm32_sai_sub success, cdc-acm success, libcomposite success, g_serial success, OK
Running sysctl: OK
Starting mdev... OK
Seeding 256 bits and crediting
Saving 256 bits of creditable seed for next boot
Starting tee-supplicant: Using device /dev/teepriv0.
OK
Starting network: OK
Starting dhcpcd...
dhcpcd-9.4.1 starting
DUID 00:01:00:01:2d:fa:18:62:ca:7e:a7:e6:2f:fb
forked to background, child pid 1[    5.408396] m_can_platform 4400e000.can can0: bit-timing not yet defined
77
[    5.421874] m_can_platform 4400e000.can can0: failed to open can device
[    5.436986] m_can_platform 4400f000.can can1: bit-timing not yet defined
[    5.454812] m_can_platform 4400f000.can can1: failed to open can device
Starting dropbear sshd: OK
Stopping /etc/rc.localOK

#     #  #######   #####   #######     #      #####   #    #
##   ##  #        #     #     #       # #    #     #  #   #
# # # #  #        #           #      #   #   #        #  #
#  #  #  ######    #####      #     #     #  #        ###
#     #        #        #     #     #######  #        #  #
#     #  #     #  #     #     #     #     #  #     #  #   #
#     #   #####    #####      #     #     #   #####   #    #
Welcome to CoreMP135, Powered by M5Stack.
CoreMP135 login:

nnn

My problem was solved below.

https://github.com/m5stack/M5Stack/tree/master/examples/Modules/W5500

https://github.com/m5stack/m5stack-documentation/issues/4

nnn

I got the same problem.
I changed the rename of Serial2 and fixed it.

HardwareSerial Serial2(2);
→HardwareSerial Serial2_(2);

nnn

And, Arduino Example page in M5Stack LAN Module is "Page not found".
M5Stack-Admin,I want you to correspond.
https://github.com/m5stack/m5stack-documentation/blob/master/en/product-documents/modules/m5stack_lan_module.rst

nnn

I found an example of W5500, but it did not work.

W5500 example is
https://github.com/adafruit/Ethernet2

But,I get the following error in my environment.

Failed to configure Ethernet using DHCP

My code is


#include <SPI.h>
#include <Ethernet2.h>

byte mac[] = {  
  0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 };


void setup() {
  Serial.begin(115200);
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // no point in carrying on, so do nothing forevermore:
    for(;;)
      ;
  }
  Serial.print("My IP address: ");
  for (byte thisByte = 0; thisByte < 4; thisByte++) {
    Serial.print(Ethernet.localIP()[thisByte], DEC);
    Serial.print("."); 
  }
  Serial.println();
}

void loop() {

}

nnn

I would like to try "LAN Module with W5500 Chip".
Where is LAN Module example??