Turing 2 not recognizing cm4 boards
# │forumd
DrStang
03/21/2023, 12:30 AMPosted on Kickstarter comments too and I was thankfully referred to this server.
My Board does not seem to recognize any of the four different cm4s I have - I cannot boot sd card or connect to the cm4s in usb mode. I’m using a usb a cable and do not have a battery installed. Admittedly the CM4 boards I have are all the same and have tried using different nodes with usb mode and moving the sd card to different nodes. Also , When I open the web gui none of the boards are listed.
Appreciate any types of help!
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DhanOS
03/21/2023, 1:22 AMThe board are not necessarily going to be listed there, this feature is not completed
DhanOS
03/21/2023, 1:22 AMDid you power on the nodes?
DhanOS
03/21/2023, 1:23 AMWhat LEDs do you see on the board lit? A photo would help
DhanOS
03/21/2023, 1:31 AMAlso, are these modules the Light versions or rMMC versions? eMMC ones cannot be used with the SD card and need to be flashed onto the eMMC
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DrStang
03/21/2023, 2:02 AMThanks for the response. I did power on the nodes. Tried both through the console and the switch in the board. I do have the eMMC module - but tried the SD card since I haven’t been able to detect the modules in windows. This picture is my latest attempt to get it working with one module in place. Thanks !
DrStang
03/21/2023, 2:03 AMGreen light on psu side. Red light on rear. Two green lights on adaptor
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DhanOS
03/21/2023, 4:04 AMSo, like I mentioned, you cannot use the SD cards with the eMMC version of the modules.
DhanOS
03/21/2023, 4:05 AMTo have a module visible under windows, you first need to put it into the flashing mode, please check: https://help.turingpi.com/hc/en-us/articles/8687165986205-Install-OS
DhanOS
03/21/2023, 4:05 AMMake sure to use the USB_OTG port in the back of the Turing Pi 2 board (next to the HDMI port)
DhanOS
03/21/2023, 4:05 AMMake sure to use USB A-A cable (USB A-C rarely work)
DhanOS
03/21/2023, 4:06 AMIf you see any troubles with flashing in Node 1, flash the module in other node
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DrStang
03/21/2023, 9:54 AMThanks - I’ve tried all these steps multiple times. I’ve even bought a new usb a to a cable without success. I was thinking of trying to use a different PC - to see if that matters. I’d rather not buy more cm4 modules given the price / availability, but that maybe my next step too to make sure the modules aren’t bad…
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DhanOS
03/21/2023, 3:41 PMI was quite tired when you posted this and noticed just now - never put a board onto an antistatic bag. Antistatic bag's task is to keep static charge outside of the bag, exactly where you put the board at.
DhanOS
03/21/2023, 3:41 PMThe LED indicators look ok
DhanOS
03/21/2023, 3:42 PMAs for the flashing - are you setting node 2 into the device mode and setting USB port for Node 2?
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DrStang
03/21/2023, 3:44 PMThanks - I actually 3d printed a stand that the board is sitting on. The stand is on the bag 😃.
DrStang
03/21/2023, 3:44 PMAnd I ran ‘tpi -u device -n 2’ Should I have ran something else too?
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DhanOS
03/21/2023, 3:46 PMOk, and you power the node on after you run this command?
DhanOS
03/21/2023, 3:46 PMI also do not see a network cable connected, but I'm assuming the photo was taken in the different point of time?
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DrStang
03/21/2023, 4:17 PMYes. I have tried turning the node on before and after running the command.
DrStang
03/21/2023, 4:18 PMAnd you are correct - I usually do have a network cable plugged in
DrStang
03/21/2023, 4:18 PMWill be able to try another pc in a little bit when I get home. I really do appreciate your help !
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booth5381
03/21/2023, 10:54 PMhave you tried putting the CM4 in slot 1 and seeing what appears on the HDMI port? I think a CM4 with an unflashed eMMC would still show something on HDMI.
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DrStang
03/23/2023, 11:40 AMInteresting - I’ll give that a try. Thanks!
DrStang
03/23/2023, 11:41 AMI was thankfully able to get one module successfully flashed after I tried a different pc - but the others not so lucky. Will see if I’m getting output with hdmi.
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DhanOS
03/23/2023, 2:43 PMCan you describe "not so lucky"?
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DrStang
03/25/2023, 12:35 AMSo I wasn’t able to flash my other modules still - PC wouldn’t recognize them. I decided to use a different usb port and now that worked! So all my modules are currently working! Thanks for the help!
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