Cm4 jumper Oct 3, 2022 · CM4 RPiBOOT mode In order to apply any EEPROM updates to the Raspberry Pi CM4 itself, you’ll need to boot it into RPiBOOT mode, this varies on carrier board to carrier board. CM4-IO-BASE-C is a carrier board that can be used with Raspberry Pi Compute Module 4. Jan 13, 2012 · if the CM4 is not co-operating (it needs special bootconf. M5P Product Profile BIGTREETECH MANTA M5P is a 32-bit motherboard developed by the 3D printing team of Shenzhen BIQU Innovation Technology Co. On the CM4-IO-BASE board there is a switch or a jumper (depending on hardware revision) for switching the Pi to RPI Boot Mode. Thanks very much ! However, Could I modify the current CM4 (With 16G EMMC ) or IO board slightly by hardware way (for example : remove a certain resistance or jumper a signal) to let it boot from SD card ? As @timg236 says above, no. I have no jumpers, even old motherboards or old hdd's. Connected a high-quality micro-USB cable to the USB Slave port on the IO Board. Scripting Details: 4: In normal use, it is necessary to provide at least 5V 1. Here's what I've done so far: 1. It can run Klipper with a core board, which greatly eliminates the mass wiring between the motherboard and Raspberry Pi, and also greatly saves space in the chassis. Jumpers The jumpers above the stepper drivers switches stepper driver input power between V_MOT and VIN (ie, board power terminals and motor power terminals). eMMC boot pin jumper, picture via Jeff Geerling The issue I prepared the board with a jumper, micro USB cable and installed the rpiboot tool, all as per the official documentation. Googling this isn't showing any decent results. 3af network standard. The device is now ready for use. I'm waiting on a delivery from Amazon with said jumpers. Bootloader CM4 (click pics to enlarge) While still in the usbboot folder issue this command. 5. 9. Usually there is a simply jumper you can set before powering on the board. The flash will take a couple of seconds and once done, you’ll see a confirmation in the terminal (if you have a screen connected to your Raspberry Pi, it will turn green). Connect the network cable to your network device and power on the router board. 0 x1 HDMI 1. Before you can set the eMMC storage into 'USB mass storage' mode, you have to put a jumper over the first set of pins on the jumper—the jumper labeled "nRPBOOT to GND". Connected the CM4 to the IO Board. Learn how to install a KOS bootloader for the RPi-CM4 board type to start using it as a KOS-enabled device. A red status light will come on. Port 0 - to LAN network device such as switch. Jun 28, 2025 · The instructions say that the board needs J6 jumpers to enable CAM0 just like the CM4, when the CM5's board has written that it needs jumpers for enabling CAM0. 6: When using the POE function, pay attention to check whether the switch supports PoE of the 802. 3V. Feb 5, 2021 · i'm pretty sure the boot from the internal xhci wasnt even an option when the CM4 got released and the intended way to flash everything is over rpiboot (cm4 in device mode, not host), using the nRPIboot jumper, ideally flash it all at the factory, and then never flash it again drcnyc Posts: 34 Joined: Fri Feb 05, 2021 1:54 am Feb 26, 2022 · The eMMC cm4 does not have the SD pins wired up, so the microSD slot on the cm4 I/O board is going nowhere. This instruction is mainly for eMMC version. 0 Only for 1st CM4: USB Host A 2. I use the official raspberry pi ip board, but there are other boards made by other companies, Google cm4 carrier boards and check the descriptions. Always remember to set the voltage selector correctly for the fan you're using. Here is a step-by-step guide to get it done: Aug 23, 2021 · This tutorial will show you how to flash the eMMC on the CM4 with the latest version of Raspberry Pi OS. a) Will the RPI still boot into RPI OS? b) If it does, can you use rpi-eeprom-update to fix the corrupted image? c) If it does not boot into RPI OS, how do you load a new bootloader image? The CM4 datasheet says the following about the bootloader: Nov 3, 2020 · when the eeprom boot fails (via the CM4 jumper, or by erasing it manually), i was also able to use usbboot/recovery to re-flash the eeprom on my pi4b then based on a tip about amber-etcher-kernel doing the MSD from the arm end, i wrote my own MSD initrd Paste thermal pad to CM4 Module on top of CPU and Memory chip. Description CM4-NANO-A is the mini board of Raspberry Pi Compute Module 4, which is a baseboard of Raspberry Pi Compute Module 4 with a 5V/2. Otherwise, there may be problems such as automatic shutdown, frequency reduction, and so on. It is useful to have jumper pins for wiring. You can simply plug in the core board to run the Klipper firmware, which greatly simplifies the connection between the motherboard and the Raspberry Pi, and saves a lot of space. Dec 2, 2024 · For the official I/O board, simply connect the two pins marked 'Fit jumper to disable eMMC Boot' on the left side of the Raspberry Pi Compute Module 5. txt file on boot Install the latest Raspberry PI OS image, either on SD card (with CM4 Lite) or onto eMMC. Nov 21, 2021 · Here is a step-by-step guide on how to get your CM4 booting from an NVMe SSD drive. Mar 15, 2021 · I noticed that the CM4 IO board requires a jumper eMMC Boot to force bootloader. Install Compute Module 4 to CM4 Router Board insert the microSD or TF card (eMMC version does not require an SD card) Fix the heatsink to CM4 router board. The BTB headers are designed on MANTA M5P, so that customers Jan 14, 2021 · Waveshare Compute Module 4 IO Board with PoE Feature, Compatible with Raspberry Pi, Suitable for All Variants of CM4 Install the latest Raspberry PI OS image, either on SD card (with CM4 Lite) or onto eMMC. Set a jumper on this pin or turn the switch to “ON”. WiringThe Manta M8P supports both 2-pin and 4-pin fans. The documentation around the Raspberry Pi Compute Module 4 is licensed under a Creative Commons Attribution-NoDerivatives 4. Here is the disable eMMC BOOT jumper location on the CM4 IO Board: Connect your carrier board to your host PC or Pi with a USB cable to the USB Slave port on A Raspberry Pi Compute Module (CM) is a compact version of a standard Raspberry Pi single-board computer (SBC) designed primarily for embedded and industrial applications. Short the pins, connect to the micro USB port to the secondary computer and apply power. 7: When you need to use POE, connect the POE jumper Apr 14, 2021 · One would simply power down the CM4, plug in the USB-C, then power it on again and the jumper would be automatically set, and the CM4 would be ready for programming. , Ltd. I want to use +5V signal from the USB device port to switch CM4 to bootloader mode like on my previous device with CM3. A Compute Module contains the core components of a Raspberry Pi but without the standard connectors like HDMI, USB, or Ethernet. Plug-in a USB-C cable to Home Assistant Yellow and connect it to your PC. " in the section for connecting the 2nd camera Aug 18, 2012 · Ok, I set the nRPIBOOT jumper, I connect the usb cable between CM4 IO board and Windows 10 PC I open rpiboot on Windows PC, I see Waiting for BCM2835/6/7/2711 in Windows command prompt window I apply power to CM4 Io board, red LED turns on solid , green LED fast blinking the message "Waiting for BCM2835/6/7/2711" displays in Windows command prompt window It hangs there, and nothing Jun 21, 2018 · Got it . I have tried this over Mac/Linux (Ubuntu) and Win10 and see the same issue on all, though on Win10 - you do see the host (IO board I guess). 6. 5: Onboard default 4 x USB 3. exe to be able to USB Boot the device Feb 19, 2025 · Please fit the EMMC_DISABLE / nRPIBOOT jumper before connecting the power and USB cables to the target device. Dec 19, 2022 · Use the J2 jumper to put your CM4 board into RPI BOOT mode and power cycle the board. Disconnect the device and set the jumper to OFF. co/rpiboot for debugging tips. This should work if you’re using the CM4IO Board or a custom expansion board. The SD pins on the SoC are routed to the EMMC not to the CM4 connector. Jun 22, 2020 · Say that you have the new CM4 and somehow the bootloader gets corrupted after you fiddle with it. This isn’t something that was added to the uconsole. Jun 18, 2024 · I am working with Raspberry Pi CM4 (4GB/32Gb EMMC) and the Rpi CM4 IO Board; The eMMC boot works fine with Raspberry Pi OS. Moreover, the BTB connector is Aug 8, 2020 · 2. On Raspberry Pi 4 / CM4 the recommended approach is to use a boot. Hook a jumper pin or wire up to the pins shown below. 3. Followed usual flashing instructions, using RPi 4 IO Board, rpiboot etc but the CM5 module is not appearing in the imager or as a blk device. If the device fails to connect then please see https://rpltd. Set a jumper on CM4-BASE-A to instruct the CM4 to boot with USBBOOT enabled. Set the jumper on J2 (between pins 1-2) to enable USB boot mode. Now, when I am trying to boot from USB I am facing issues. img which is a FAT disk image containing the minimal set of files required from the boot partition. . txt file on boot Oct 1, 2021 · Which CM4 pins are connected to the SPI of EEPROM (MISO, MOSI, CLK & CS) In short for security reasons we want to read the Status Register from our code (burned on PI). 2 Gen1 interface. Dec 5, 2024 · Hi Team, Following from development of our modules for CM4, recently purchased CM5 4/32. With a dedicated 40PIN LCD Connector, it also is easier and faster to be integrated into applications. During boot, if this signal is LOW, booting from eMMC is disabled and the bootrom will wait for code over USB instead. for Klipper firmware. 5A USB Type C interface. (Disable eMMC boot). 6 and the rpiboot_setup. Below diagram shows the difference. A Raspberry Pi Compute Module (CM) is a compact version of a standard Raspberry Pi single-board computer (SBC) designed primarily for embedded and industrial applications. for Klipper running. 5A power supply for CM4. But when I powered on the board, no USB device showed up. Nov 6, 2025 · The CM4 IO board includes a J2 jumper header labeled "Fit jumper to disable eMMC boot" . This is working as of November 2021. Connect the device to a Linux laptop via the USB-C port on CM4-BASE-A. Ran rpiboot on my host machine (Linux). Exposing every interface from Raspberry Pi Compute Module 4, the Compute Module 4 IO Board provides a development platform and reference base-board design for our most powerful Compute Module yet. Jan 13, 2025 · Steps to reproduce Connect CM4 IO Board with PC through usb Put jumper on J2 to disable boot from emmc Use RPIBOOT and have access of emmc through USB Use Imager tool to install latest DietPI Remove jumper Boot from MMC USB doesn’t work correctly Expected behaviour USB devices should working Actual behaviour USB devices doesn’t work Extra Super6c stands for Super 6 CM4 Cluster. See the text "(CM4 and CM5): Connect the J6 GPIO pins with two vertical-orientation jumpers. Setting this jumper pulls the nRPIBOOT pin (pin 93) low, forcing the module into USB device mode rather than attempting to boot from eMMC Raspberry Pi. You can mix and match as you like. If successful, your CM4 will not boot as usual and instead into this special mode. 4. The CM4 does most of the interfacing required for the HDMI interface so that most signals are directly connected to the CM4. com Wanting to investigate these new capabilities for myself I got a hold of some gear and wanted to write a setup and configuration guide on everything you need for a full CM4 (Compute Module 4) setup and how to get it imaged and configured. HDMI connectors require a +5V supply, this is provided on the Raspberry Pi Compute Module 4 IO Board via a current limited switch. Anyway, I also ordered an NVMe but want to see what the eMMC is like first. 2 2280 slot (PCIe Gen 2 x1) * TF Card slot * 5V FAN Header * Micro USB 2. In the configuration shown in the image above, the MOTOR power isn't connected because the jumpers are set to use the board power (VIN). 0 x2 USB Host 2. Enable and connect the serial console. Dec 19, 2024 · Installing Raspberry Pi OS on the Raspberry Pi Compute Module 5 (CM5) with eMMC storage involves a slightly different process compared to the CM5 Lite version without eMMC. 4a x1 Compatibility Currently Apr 17, 2022 · make Now let’s prep the CM4 Carrier board. 0 International (CC BY-ND). The only way to flash the os is by using another board that supports the flash function. sudo . Jul 4, 2019 · So my CM4+IO Board is here. See full list on jeffgeerling. With Lite version, you can use SD card instruction, otherwise use eMMC instruction. bin and reflash it CM4 does most of the interfacing required for the HDMI interface so that most signals are directly connected to the CM4 board. 0 data. Sep 18, 2023 · This blog shows how to mount the Raspberry Pi Compute Module 4 (CM4) eMMC storage on another computer (in my case is a Windows PC), and then re-flash a new OS image to it. 2. 54 4-pins x2 HDMI 2. Yes, you can use PCI Express on a Raspberry Pi with the Compute Module 4! Guide on how to configure PCIe-based NVMe on the CM4’s IO board! A Raspberry Pi Compute Module (CM) is a compact version of a standard Raspberry Pi single-board computer (SBC) designed primarily for embedded and industrial applications. I’ve never used a lite version in a uconsole, but I am very pleased Jul 15, 2024 · What will you need before you start? A Raspberry Pi CM4 (heavily, heavily out of stock) A Raspberry Pi CM4 Carrier Board (recommending the official I/O board to start) An HDMI cable A Micro USB Cable An SD Card (for those without eMMC memory) Ethernet A USB Mouse or Keyboard A 12V DC plug Jumper cables or jumper connector The CM4 does most of the interfacing required for the HDMI interface so that most signals are directly connected to the CM4. CM4 does most of the interfacing required for the HDMI interface so that most signals are directly connected to the CM4 board. - For every CM4: * M. The jumper that enables boot from usb is located near the micro-USB connector on the PCB. Jan 17, 2025 · If you need to flash Raspberry Pi OS onto the eMMC of a Raspberry Pi Compute Module 4 (CM4), you can do so using a Raspberry Pi 5 and the usbboot tool. Execute the setup script on the Linux laptop (more details below). txt), then you use the nRPIboot jumper to force it into usb-dev mode, and (web)usbboot can push over recovery. Apr 12, 2022 · I used a Raspberry Pi 4B for writting the firmware to the CM4. Output: USB mass storage M8P Product Profile BIGTREETECH MANTA M8P is a 32-bit printer motherboard developed by the 3D printing team of Shenzhen BIQU Innovation Technology Co. Contribute to DeskPi-Team/super6c development by creating an account on GitHub. It may be there by default, but it is worth to double-check. Dec 7, 2024 · There was a third option to set “dr_mode=otg” and by adding or removing the USB_OTG jumper on the CM4 IO board you could switch between the two functionalities as needed rather than having to reboot to switch functionality. The Raspberry Pi CM4 manily comes in two versions: one with built-in eMMC storage, another one is CM4 Lite without eMMC. In the configuration shown in the image above, the MOTOR power isn Aug 16, 2023 · Updating An Entire Image Overview Process Jump the boot jumper pins Plug in USB cable Start RPIBoot Power up unit Open RaspberryPi Imager Choose the custom image and correct storage of the CM4 Upload Turn off power Disconnect USB cable and jumper Download RPIBoot onto your windows machine using the following auto download link https://github Jul 9, 2025 · Step 2 Connecting the Yellow to your PC On the Yellow board, make sure the JP1 jumper is set to USB. Mount boot partition onto your computer. EEPROM Update Now you’ll need to update the Raspberry Pi Dec 31, 2024 · Hey there! I have a cm4 with emmc. DeskPi Super6C Purchase DeskPi Super6C Description DeskPi Super6C is the Raspberry Pi cluster board a standard size mini-ITX board to be put in a case with up to 6 RPI CM4 Compute Modules. Make sure the cable supports USB 2. Known Issues On Raspberry Pi models starting with model 3B (including Raspberry Pi Model CM4) the hardware-based serial/UART device /dev/ttyAMA0 has been re-purposed to communicate with the the built-in Bluetooth modem and is no longer mapped to the serial RX/TX pins on the GPIO header. Powered on the IO Board. Feb 14, 2022 · This will prevent the CM4 from trying to boot from the eMMC, allow the eMMC to appear to your computer as an external storage device, and thus allow us to flash or write an OS to the eMMC. /rpiboot May 14, 2024 · Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges, Nov 6, 2025 · The CM4 IO board includes a J2 jumper header labeled "Fit jumper to disable eMMC boot" . Unlike earlier modules (CM1, CM3, CM3+), CM4 moved away from the DDR2 SODIMM form factor to a dual 100-pin high-density connector layout, which results in a smaller physical footprint. Sep 25, 2025 · A followed the procedure to flash the integrated eMMC to my Raspberry Pi CM4 with the jumper cable disabling eMMC boot and downloaded imager 1. HDMI connectors require a +5V supply, which is provided on the Raspberry Pi Compute Module 4 IO USB Dec 14, 2024 · Hi everyone, I'm facing an issue while trying to boot my Compute Module 4 (CM4) into USB boot mode. The jumpers above the stepper drivers switches stepper driver input power between V_MOT and VIN (ie, board power terminals and motor power terminals). Dec 3, 2021 · Raspberry Pi CM4: using nRPI_BOOT The Raspberry Pi Compute Module 4 has a signal on it called nRPI_BOOT, mean to be pulled up via 10k to 3. To avoid confusion, I’m going to refer to these two devices as Programmer Device and the CM4. Add enable_uart=1 to the config. HDMI connectors require a +5V supply, which is provided on the Raspberry Pi Compute Module 4 IO Board via a current-limited switch.