Title: Serial debug wrong output (garbage symbols) [Print This Page] Author: Maverick_by_ Time: 8/11/2022 19:05 Title: Serial debug wrong output (garbage symbols) Last edited by Maverick_by_ In 8/11/2022 19:41 Editor
Hello.
I just started use new ITX-3568Q mainboard with iCore-3568Q core board.
I try to use serial debug on Windows using this link: https://wiki.t-firefly.com/en/iCore-3568JQ/debug.html#use-serial-on-windows
I use many USB to serial port adapters: CH340 and CP210 and always get garbage symbols in the Putty or MobaXterm cosole, something like this:
B~ZFZ.ZzNZj~^B2.▒▒
I tryed to set 1500000 baud rate, and 115200 and others speeds, but it didn't help.
I found information on the forum about RK3999:
Note£ºThe default baud rate for RK3399 is 1500000,Some USB to serial chip baud rate can not support 1500000£¬So before you buy it, make sure it supports 1500000.
May be the reason of the problem is that my serial ports adapters does not supports 1500000 buad rate ? i see only 128000 maximum speed in the driver's port settings.
Can you gelp me with this problem ? Author: ʱ¼äµÄºûµû Time: 8/12/2022 11:18
The baud rate of the debug port is 1500000 and cannot be used if the module cannot reach the rate.
Maybe you need to confirm whether the system is running normally, whether it is connected to the wrong place, and whether the tx/rx is connected in reverse.
https://wiki.t-firefly.com/en/iCore-3568JQ/debug.html#Author: benston733 Time: 1/13/2026 06:16
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