![]() Save and fast, we are here to support you and your hardware. On you can find most up to date drivers ready for download. 1) Choose Operation System: Downloaded: 23,914 times Last Time. File Name: usb-to-serial-hl-340-driver-windows-10.exe Version: 1.4.5 Driver Date: 01 August 2020 File Size: 835 KB. During the early days of the dot com boom, our online PC maintenance tools were skyrocketing. PC Pitstop began in 1999 with an emphasis on computer diagnostics and maintenance. ![]() I wasted lot of time to find the appropriate working driver. After connected my classic pretty blue usb/serial cable converter, I found out that, as usual, Windows couldn’t recognize it. USB to Serial converter HL-340: download 32 and 64 bit windows drivers (PID/VID 4348:5523) Due to some reasons I had to run Windows XP on Virtualbox. About 10% of these are computer cables & connectors, 4% are integrated circuits, and 3% are graph plotter. The device had hl 340 printed on the side and the drivers supplied only work with xp. Commenting out the startup of a console on USB0 prevents the problem.Driver usb serial hl 340 driver for windows 7 32 bit, windows 7 64 bit, windows 10, 8, xp. SMSC9512/9514 Fast Ethernet Adapterīus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.īus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubĢ) If the USB0 agetty is left active, then the SIMH session on the serialĭon't know why this problem occurs. 4-Port HUBīus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. wch.cn - Other hardware - USB-SERIAL CH340, Windows 8.1 and later drivers, Drivers (Other. Title, Products, Classification, Last Updated, Version, Size. ** Also beware that some cheap dongles have incompatible clone chips, there is no way to tell this until you discover that it wont' work.įor everyones reference, here's my setup, with notes:ġ) Install PL2303 based USB-serial dongle.īus 001 Device 007: ID 1267:0201 Logic3 / SpectraVideo plc A4Tech SWOP-3 Mouseīus 001 Device 006: ID 067b:2303 Prolific Technology, Inc. Is the adapter loading the right kernel module Ive heard that your device may be CH341 compatible: sudo modprobe ch341. ** It's very important to do lots of googling to find a compatible chipset, I did not do enough checking the first time :( I have changed to a PL2303 based dongle and everything is working, with just one puzzle remaining. The main problem seems to have been dongle chipset that was not properly supported in RaPi. Hi all, have been busy but pleased to report success. ![]() I'm not good enough with linux to know what or where. I think that something in Jessie is messing with the data. I think that the USB-serial dongle is recognised and working, the CH340 is meant to be supported OK in RaPi ![]() So the adapter is OK and it talks to the VT100 OK. So I am getting different serial results depending on how I send '1' to /dev/ttyUSB0.Ĥ) I have connected same USB-serial adapter to the PC and Hyperterminal at 9600 8N1 works perfectly with the VT100. Why am I not getting a single 8bit ASCII char? Is this a unicode issue? I get at least 16 bits, still 9600 baud but not formed as 8N1. Why is the 8bit ASCII getting remapped?ģ) If I use 'echo 1 > /dev/ttyUSB0' then I do not get a single 8N1 character. I type '1' on the pi and the VT100 gets 'Q', rate is correctĢ) If I use 'screen /dev/ttyUSB0' then for every character typed on the Pi I get one serial character at 9600 with 8N1 format - that part is correct When I hook up a VT100 terminal at 9600 8N1 to the ttyUSB0 I get garbage.ĪND the kind of mangling is different according to how the data is sent.ġ) If I look at the transmitted data with the storage scope I can see that the bit times are 9600 baud - that's OK. and, why is it getting garbage, rather than showing good boot/login text? I removed /dev/ttyUSB0 from cmdline.txt, so why does ttyUSB0 get anything during bootup ![]() brkint -icrnl -imaxbel iutf8 -opost -isig -icanon -iexten -echo -echoe -echok -echoctl -echokeĭuring bootup, VT100 shows garbage characters Speed 9600 baud line = 0 min = 1 time = 0 edit cmdline.txt to remove references to ttyUSB devicesĮxecStart=-/sbin/agetty -8bits ttyUSB0 9600 vt100Īfter all necessary restarts I have a serial port that works but sends mangled data.īus 001 Device 005: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter Looking for some help to understand how/why my serial stream is being mangled. ![]()
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