I tried two different firmware roms but both with HAP bit set. Could this affect the serial connectivity ( as SuperIO in PCH or smth ?
On Monday, May 03, 2021 14:39 CEST, "lain" lain@datenwanderung.de wrote: Hi Michal,
I tired 2 Different USBto RS232 Converts, and a SerialPort on an Thinkpad x60 dock, also flow control. The Very same DB9 RJ45 cable works on a sun ultra. Also tried Power unplug. Maybe something firmware realted or faulty connector i would say On Monday, May 03, 2021 14:27 CEST, Michał Żygowski michal.zygowski@3mdeb.com wrote: Hi Iain,
On 5/3/21 2:20 PM, lain via coreboot wrote:
Does somebody has trouble with the Serial Port on an Protectli FW6C / Yangling device ? I am getting only Garbage ( yes i have checked the serial settings )
How likely is a faulty connector ?
I would check two things:
1. Faulty RS232 converter 2. Enabled hardware flow control.
Such issue sometimes happened with the FW6 platform during the firmware development and the above were the main reasons. Don't forget to keep the hardware flow control off when opening the serial port in your terminal emulator. Please also try different RS232 converter if possible. I also encountered faulty samples of such converters which did not work reliably (I have a bunch of converters of the same model and vendor, but 1 out of 20 was simply not working). Alternatively you may unplug the converter from any power to let it reset, just in case the converter caught some escape sequence in a wrong moment. Very unlikely that something is wrong with FW6C platform.
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Best regards,
-- Michał Żygowski Firmware Engineer https://3mdeb.com | @3mdeb_com
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AFAIK it shouldn't. No idea what can be wrong.. Maybe you could share your coreboot config and I may find something there?
Best regards,