Serial port cable
#6
(03-10-2020, 02:16 AM)danielt Wrote:
(03-09-2020, 06:00 PM)tllim Wrote: Should works :-)

I don't think it does.

For me the excessive voltage level on the adapter TX/PBP RX pin causes the kernel to crash during boot up. My laptop wasn't physically damaged by the over-volting from the adapter but since it doesn't work anyway I saw no reasons to take risks and stopped using it.

I now use a 3.3v TTL adapter from eBay with a hand soldered 3.5mm adapter.

The crash during boot might be unrelated to the voltage:

"Note: It is not recommended to connect the serial adapter to pin 10 (RX) while booting, as this often causes the board to hang early in the bootloader. Disconnecting pin 10 still allows the serial console to be viewed, and it can be reconnected after the board boots, allowing interaction with the console."

https://nixos.wiki/wiki/NixOS_on_ARM/PIN...al_console

Regardless, Pine should sell a 3.3V adapter, with the correct chipset.   I have no idea why they are selling a 5V adapter when, as far as I know, none of the Pine computers use 5V UART.
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Messages In This Thread
Serial port cable - by bsammon - 03-06-2020, 04:11 PM
RE: Serial port cable - by tllim - 03-09-2020, 06:00 PM
RE: Serial port cable - by z4v4l - 03-09-2020, 07:06 PM
RE: Serial port cable - by danielt - 03-10-2020, 02:16 AM
RE: Serial port cable - by zaius - 03-10-2020, 11:56 AM
RE: Serial port cable - by danielt - 03-11-2020, 08:53 AM
RE: Serial port cable - by zaius - 03-11-2020, 01:00 PM
RE: Serial port cable - by danielt - 03-11-2020, 02:41 PM
RE: Serial port cable - by zaius - 03-13-2020, 12:37 PM
RE: Serial port cable - by danielt - 03-16-2020, 08:18 AM
RE: Serial port cable - by zaius - 03-16-2020, 12:44 PM
RE: Serial port cable - by vrabac - 03-10-2020, 12:25 AM
RE: Serial port cable - by z4v4l - 03-11-2020, 03:37 PM
RE: Serial port cable - by danielt - 03-12-2020, 04:48 AM
RE: Serial port cable - by xyzzy - 11-18-2020, 09:59 PM
RE: Serial port cable - by mattpenn - 03-03-2021, 08:32 AM
RE: Serial port cable - by tllim - 03-04-2021, 12:49 AM
RE: Serial port cable - by mattpenn - 03-04-2021, 10:00 AM

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