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    CoreMP135 Debian image

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    • teastainT
      teastain @mgrouch
      last edited by

      @mgrouch I am no expert on the CoreMP135, but it looks like it is more of a Raspberry Pi, than an Arduino or ESP32 microcontroller without WiFi or BT.
      In the link I sent you there is a LVGL demo to try.
      As to porting your cool Boat app over, it would be easy to do to another ESP32 machine like Core Basic, Core2 or CoreS3, but at some point this is not an M5Stack issue, but a LVGL issue, they may have some guidance over at their GitHub repository.
      -Terry

      Cheers, Terry!

      100% M5Stack addict with several drawers full of product!

      1 Reply Last reply Reply Quote 0
      • ajb2k3A
        ajb2k3 @mgrouch
        last edited by

        @mgrouch said in CoreMP135 Debian image:

        @teastain said in CoreMP135 Debian image:

        @mgrouch https://github.com/m5stack/M5Stack_Linux_Libs
        The Official M5Stack CoreMP135 library repository.

        I’d like to port my esp32 LVGL app to Linux on coremp135.
        This app:

        https://github.com/bareboat-necessities/bbn-m5stack-tough

        Are there any guides on porting?

        Thanks

        not directly as the CoreMP135 is too new.

        The CoreMP135 runs linux and so you will need to learn how to program on a linux based computer.

        UIFlow, so easy an adult can learn it!
        If I don't know it, be patient!
        I've ether not learned it or am too drunk to remember it!
        Author of the WIP UIFlow Handbook!
        M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

        M 1 Reply Last reply Reply Quote 0
        • M
          mgrouch @ajb2k3
          last edited by mgrouch

          Ok. I got the device and I loaded Debian image M5_CoreMP135_debian12_20240628 from

          https://docs.m5stack.com/en/guide/linux/coremp135/image

          It did boot.
          However, upon boot it didn't resize the root partition to occupy whole SD card.
          As a result I can't install anything because there is no space.

          I had to use fdisk to resize /root partition (#5 for me, making sure I use same starting block and preserve filesystem type, see https://askubuntu.com/questions/24027/how-can-i-resize-an-ext-root-partition-at-runtime) and then
          resisz2fs command (something like resize2fs /dev/mmcblk0p5).
          It would be too hard for an average user to repeat that.

          Also the kernel on it is very old. 5.15.118
          On Raspberry Bookworm it is much newer. (6.x)

          There are many errors related to USB reported by dmesg.
          I have powered USB HUB and keyboard is connected via it.
          Keyboard works though.

          Is it possible for next versions to have image which would resize to SD card size?
          Same way as Pi OS does?

          Is it possible to have have newer linux kernel? I think USB errors might be related to old version of it.

          Thanks

          M ajb2k3A 2 Replies Last reply Reply Quote 0
          • M
            mgrouch @mgrouch
            last edited by

            @mgrouch said in CoreMP135 Debian image:

            Ok. I got the device and I loaded Debian image M5_CoreMP135_debian12_20240628 from

            https://docs.m5stack.com/en/guide/linux/coremp135/image

            It did boot.
            However, upon boot it didn't resize the root partition to occupy whole SD card.
            As a result I can't install anything because there is no space.

            I had to use fdisk to resize /root partition (#5 for me, making sure I use same starting block and preserve filesystem type, see https://askubuntu.com/questions/24027/how-can-i-resize-an-ext-root-partition-at-runtime) and then
            resisz2fs command (something like resize2fs /dev/mmcblk0p5).
            It would be too hard for an average user to repeat that.

            Also the kernel on it is very old. 5.15.118
            On Raspberry Bookworm it is much newer. (6.x)

            There are many errors related to USB reported by dmesg.
            I have powered USB HUB and keyboard is connected via it.
            Keyboard works though.

            Is it possible for next versions to have image which would resize to SD card size?
            Same way as Pi OS does?

            Is it possible to have have newer linux kernel? I think USB errors might be related to old version of it.

            Thanks

            USB errors were my fault. I plugged usb 3.0 hub into usb 2.0 port.

            One more question:

            What are the tty devices names of RS-485 and UART6 under /dev?

            Thanks

            1 Reply Last reply Reply Quote 0
            • ajb2k3A
              ajb2k3 @mgrouch
              last edited by

              @teastain here is the dev directory listing
              coremp135devfolder.png

              UIFlow, so easy an adult can learn it!
              If I don't know it, be patient!
              I've ether not learned it or am too drunk to remember it!
              Author of the WIP UIFlow Handbook!
              M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

              M teastainT 2 Replies Last reply Reply Quote 0
              • M
                mgrouch @ajb2k3
                last edited by

                @ajb2k3

                What is /dev/ttySTM2 ?

                ajb2k3A 1 Reply Last reply Reply Quote 0
                • teastainT
                  teastain @ajb2k3
                  last edited by

                  @ajb2k3 "But, for mine own part, it was Greek to me."
                  (Casca, Julius Caesar: Act 1, Scene 2)

                  Cheers, Terry!

                  100% M5Stack addict with several drawers full of product!

                  1 Reply Last reply Reply Quote 1
                  • ajb2k3A
                    ajb2k3 @mgrouch
                    last edited by

                    @mgrouch said in CoreMP135 Debian image:

                    ttySTM2

                    From what I can find, the /dev/ttystm0 2 and 3 could be UART ports

                    UIFlow, so easy an adult can learn it!
                    If I don't know it, be patient!
                    I've ether not learned it or am too drunk to remember it!
                    Author of the WIP UIFlow Handbook!
                    M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

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                    • ajb2k3A
                      ajb2k3 @prima
                      last edited by

                      @prima said in CoreMP135 Debian image:

                      The mDNS service aka Zeroconf aka Avahi aka Bonjour is already enabled on the device, so if you have the client tools installed on your PC you can connect in SSH using the .local address like this:

                      ssh root@M5Core135.local

                      M5Core135 is the default hostname.

                      I cant get a ssh login with the latest Debian release. the default password return access denied in SSH

                      UIFlow, so easy an adult can learn it!
                      If I don't know it, be patient!
                      I've ether not learned it or am too drunk to remember it!
                      Author of the WIP UIFlow Handbook!
                      M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                      ajb2k3A J 2 Replies Last reply Reply Quote 0
                      • ajb2k3A
                        ajb2k3 @ajb2k3
                        last edited by

                        gpioinvestigating.png

                        Finally getting around to looking at the GPIO's on the CoreMP135.
                        not getting far at the moment as it took all weekend to work out how to expand the OS to use the whole card then get it to install GPIOD.

                        UIFlow, so easy an adult can learn it!
                        If I don't know it, be patient!
                        I've ether not learned it or am too drunk to remember it!
                        Author of the WIP UIFlow Handbook!
                        M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                        M 1 Reply Last reply Reply Quote 0
                        • M
                          mgrouch @ajb2k3
                          last edited by

                          What were the changes between

                          M5_CoreMP135_debian12_20240919

                          and

                          M5_CoreMP135_debian12_20240628

                          I can find it in github.

                          Thanks

                          ajb2k3A 1 Reply Last reply Reply Quote 1
                          • ajb2k3A
                            ajb2k3 @mgrouch
                            last edited by

                            @mgrouch I don't have the slightest idea.
                            I run the apt update and apt upgrade to make sure I have the latest version.

                            UIFlow, so easy an adult can learn it!
                            If I don't know it, be patient!
                            I've ether not learned it or am too drunk to remember it!
                            Author of the WIP UIFlow Handbook!
                            M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                            1 Reply Last reply Reply Quote 0
                            • J
                              JNVoirol @ajb2k3
                              last edited by

                              @ajb2k3
                              Hello, I have the same problem using latest image of the OS. When I try to login as root I got the message access denied. How did you handle this ?

                              ajb2k3A 1 Reply Last reply Reply Quote 0
                              • ajb2k3A
                                ajb2k3 @JNVoirol
                                last edited by

                                @JNVoirol I still haven't solved the ssh issue yet so still directly logging in.

                                UIFlow, so easy an adult can learn it!
                                If I don't know it, be patient!
                                I've ether not learned it or am too drunk to remember it!
                                Author of the WIP UIFlow Handbook!
                                M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

                                1 Reply Last reply Reply Quote 0
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