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jclehner / bcm2-utils

Utilities for Broadcom-based cable modems
GNU General Public License v3.0
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what's the Ubee Cable modem uart console Pin sequence #44

Open shuaigai2020 opened 2 years ago

shuaigai2020 commented 2 years ago

Hello: i have a Ubee product which inlcude three uart console interface , but i don't what's the ecos uart, rg uart, and as it include 5 PINs , do you know UBC_1319_Console_Pin what's the uart console PIN sequence for each one . the detail you can refer to the attachemnet

Swyter commented 2 years ago

The leftmost pin is probably ground and the two next to it seem to be the transmission/receive data lines, you can see them zigzagging in pairs on the top layer of the PCB with some passive components. In my case the layout was GND/TXD/RXD.

But as long as you don't connect the 3V3 pin anywhere and only try combinations with ground and the other two it shouldn't be dangerous at all, it just won't show anything onscreen.

Good luck.

shuaigai2020 commented 2 years ago

thanks，as it is Foxconn ubee design，a bit different with broadcom 4pin design, so do you have ubee product.

---Original--- From: @.> Date: Sun, Feb 27, 2022 12:07 PM To: @.>; Cc: @.**@.>; Subject: Re: [jclehner/bcm2-utils] what's the Ubee Cable modem uart console Pin sequence (Issue #44)

The leftmost pin is probably ground and the two next to it seem to be the transmission/receive data lines, you can see them zigzagging in pairs on the top layer of the PCB with some passive components. In my case the layout was GND/TXD/RXD.

But as long as you don't connect the 3V3 pin anywhere and only try combinations with ground and the other two it shouldn't be dangerous at all, it just won't show anything onscreen.

Good luck.

— Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android. You are receiving this because you authored the thread.Message ID: @.***>

Swyter commented 2 years ago

I haven't, but because finding the GND and TXD pins first is enough you can just try connecting the GND and RXD cables (TXD on one end connects to RXD and vice versa) from your UART adapter until you see garbage, then it's a matter of finding the right baud rate to see the text. You won't break anything.

shuaigai2020 commented 2 years ago

OK，thanks，i will try

---Original--- From: @.> Date: Sun, Feb 27, 2022 21:37 PM To: @.>; Cc: @.**@.>; Subject: Re: [jclehner/bcm2-utils] what's the Ubee Cable modem uart console Pin sequence (Issue #44)

I haven't, but because finding the GND and TXD pins first is enough you can just try connecting the GND and RXD cables (TXD on one end connects to RXD and vice versa) from your UART adapter until you see garbage, then it's a matter of finding the right baud rate to see the text. You won't break anything.

— Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android. You are receiving this because you authored the thread.Message ID: @.***>