![]() And then I suddenly spotted a data cable for EPSolar Tracer that has Exar USB-SERIAL chip inside. My Linux device was powered from the same Midnite KID, having the same ground already! That means swapping RX and GND just made a short-circuit between data wire and real ground resulting in zero signal! Powering the same Linux PC from external power supply made it work like a charm.Īt this stage my last PL2303 got burned and I looked around for something else. It could be fixed by swapping RX and Ground wires, but. It seems like those cheap PL2303 boards are designed for TTL 3.3v signal levels and while they can handle UART 5v voltage, data becomes inverted. ![]() However I was able to see the pattern in that message and it could be possibly decoded. After several liters of coffee I realized that on Mac and Windows I had to revert RX and GND for uknown reason, otherwise message text was garbled. I was shocked and overwhelmed - it works with Mac, works with Windows 8 and 10 PCs, but not on Linux, even with latest kernels and drivers. I spent a day backporting 4.19 driver to old kernel and recompiling, bricked and restored my Linux PC several times and finally got it working, but not with Midnite KID. Previous driver could possibly work with 'cheap UART TTL 2303' converter, but most of the time it refuses to. To handle HX series there was a patch in pl2303.c driver around kernel 4.2 adding a thing called TYPE_HX mode. There is completely other story with Linux drivers. It could be easily fixed using old drivers, as with the link above or here: To cut some tails they managed to change latest Windows drivers rendering them incompatible with fakes. Prolific itself never produced HX chips, only HXD. So, first of all, there are tons of fake PL2303 chips, most of them are called PL2303HX. Output should be: ., sorry for necroposting, but I want to share some interesting information on PL2303 and Midnite devices.After you should remove the files stored in receipts folder: cd /private/var/db/receipts/.kext file has been removed: ls | grep usbserial.kext kext file is present: ls | grep usbserial.kext Open a terminal and type: cd /Library/Extensions/.Secondly a quick google search reveals that this is how you uninstall: You could download it directly from the Manufacturers Website in case they have issued an update since I wrote this page. If not you can download the Linux CH340 Driver (but I’d recommend just upgrading your Linux install so that you get the “built in” one).Ī couple of Mac users have said “the driver crashes my mac Sierra how do I uninstall”.įirstly regards the crash make sure you installed the 1.3 version of the driver, not the old one. (V1.0) Download the CH340 Macintosh Signed Driver for Mavericks (10.9), Yosemite (10.10) and El Capitan (10.11)ĭrivers are almost certainly built into your Linux kernel already and it will probably just work as soon as you plug it in. Here is an older version of the Mac driver, NOT FOR 10.12 Sierra See uninstalling information at the bottom of the page if the driver causes problems for you. ![]() ![]() I can personally not test on MacOS and can not vouch for the above drivers at github, but there you go. Inside the zip file you will find a PDF and a “pkg” file, short version, double click the pkg file, the PDF has some extra information.įYI, the driver documented here WILL crash on OSX Sierra. (V1.3) Download the CH340 Macintosh Signed Driver for Mavericks (10.9), Yosemite (10.10) and El Capitan (10.11) and Sierra (10.12) Previous macinstosh downloads if the above doesn’t work for you… See the github link above for installation instructions if you need them. The following github has up to day pkg files for 1.3, 1.4 and 1.5 at time of writing, thanks to Joshua Wallis for bringing this to my attention…ĭirect Download Links (from the github repo above): If you don’t know, try the 64 bit and if it doesn’t work, the 32 bit.If you are running a 32Bit Windows: – run the SETUP_32.EXE installer.If you are running a 64Bit Windows: – run the SETUP_64.EXE installer.Older Windows Driver Version and Instructions In the Arduino IDE when the CH340 is connected you will see a COM Port in the Tools > Serial Port menu, the COM number for your device may vary depending on your system.The CH340 chip is used by a number of Arduino compatible boards to provide USB connectivity, you may need to install a driver, don’t panic, it’s easier than falling off a log, and much less painful.
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