CH340 UART - USB Chip with Different Versions of Windows?

Status
Not open for further replies.

JonSea

Well-Known Member
Most Helpful Member
Has anybody used the CH340 with a variety of Windows versions and found problems with any particular versions?

I have used one of these as a serial - com Port - interface and my client is complaining it doesn't work properly with Windows 7 but it's ok with his XP laptop. I've used it to my Windows 8 computer with good results, and interestingly, with a terminal emulator on my Android phone (with USB to Go).

Anybody know of any quirks with this chip?
 

Does this help: https://www.arduined.eu/ch340g-converter-windows-7-driver-download/

spec
 
Drivers don't se3m to be the issue

He's had unreliable option with Win7 with simple ASCII text. Lines start half way across the page or lines just go missing. I'm only communicating at 9600 baud, so speed shouldn't be an issue.

He's using Hypterterminal so there could be some setup issues.
 
Ahh, right.

spec
 
You could try Tera term. I use this with Windows 7 and it seems to work reliably. I have only used it with FTDI USB to serial converters. This is the URL to download it
https://ttssh2.osdn.jp/

Les.
 
Hi John... I use a Windows 7 laptop with several different Chinese Arduino clones, which use the CH340, and I've never had a problem...

Good luck... Cheerful regards, Mike
 
Thanks for the info Mike. I don't think there's a hardware problem with the CH340.
 
CH340 works but your PC software always need to concern which comport the CH340 exists.Those chips won't assign comport in its eeprom. So when you remove the cable & plug to different USB port it uses different port.

There are some other different chip models which assigns comport number permanently.
 
Thanks. My customer has figured out a workable procedure. It would be much easier if the computer Port would stick.

It does work well with Android with USB To Go and a terminal emulator.
 
I've used them a bunch with xp all the way to windows 10 never any problems as long as you check to see witch com it's on.
And it works great with anything linux based which Android is. I love the little chip I got 10 of them for 10 cents each On ebay and they are great easy to add to anything.
 
Status
Not open for further replies.

Similar threads

MPLABX , and USB tools
Replies
5
Views
3K
Pommie
P
S
  • Question
uart problem
Replies
1
Views
2K
rjenkinsgb
F
  • Question
Piezo Beeper Driven By LED Mux Chip?
Replies
0
Views
851
For The Popcorn
F
A
Bought cheap chinese usbasp but it can't communicate with chip
Replies
4
Views
3K
tepalia02
T
J
  • Question
How to manage/control different calibration values for different truck models at end of line manufacturing?
Replies
5
Views
1K
rjenkinsgb
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…