You see, while a Model M (what I have managed to get hold of at work) is good, the true pinnacle of keyboard perfection is what I have at home, the OmniKey 102. Facts are good, I'm not saying they're not, but I have pointless over-complication on my side, so I'm afraid you're outgunned. Well, now, what your bringing up here are facts. I'm pretty new to the Arduino, so I could be making a fundamental mistake. I could go low-tech and get a shift register to do the same.īut before I chase down those options, I thought I'd ask if anybody thinks I've misread things.
#Ps2 keyboard to usb converter adapter ps2#
I could fix it: I could use another Arduino to handle the PS2 and present a buffered stream to the USB-facing Arduino. It just looks to me like it's just not possible to have USB communications and any other microsecond-resolution real-time process going on in a single Arduino. Well, I say that like a bad thing, but, from what I understand of the V-USB implementation, it has to be like that. What makes matters worse is that the USB interrupt is relatively long - as it processes the entire message in a single interrupt event.
![ps2 keyboard to usb converter adapter ps2 keyboard to usb converter adapter](https://content.instructables.com/ORIG/FIM/JMYN/KA8Y2XET/FIMJMYNKA8Y2XET.jpg)
#Ps2 keyboard to usb converter adapter code#
The USB code is fantastically timing-critical, and the PS2 is too - you have very few instructions after each clock tick interrupt to get the data line read or written. I believe what's going on is that while the USB is processing its interrupt it's skipping handling the PS2's interrupt. If I disable the USB send, I don't get any errors no matter how much I flog the keyboard. Somewhere in all that flailing, I can get some kind of bit error that feels like dropped interrupts. I can reproduce the problem reliably just by mashing keys wildly for several seconds. That is, in a normal day of typing it makes about one mistake every 15 minutes. Even with the re-send requests, the adapter works almost all the time. To "make it robust", I add start/stop and parity checking and added the ability to send NACK commands back to the keyboard to get it to re-send on error. The standard implementation is to have the clock tied to an interrupt, so you get an interrupt per bit.
![ps2 keyboard to usb converter adapter ps2 keyboard to usb converter adapter](https://m.media-amazon.com/images/I/317gRG5sVbL._AC_.jpg)
If you aren't familiar, the PS2 keyboard communicates with a data & clock pin, serially. I started with the V-USB library and some other PS2 keyboard library (which I basically rewrote in order to make it robust.) Enjoy better data transmission and shop online today.I've been puttering around with an Arduino, using it to adapt an IBM Model M keyboard to a USB port. These products come from various manufacturers and suppliers who understand the need for faster, safer information processing. Although not all of these products will provide ultra-fast connections, many can operate at faster data rates than wireless connectivity and have a more extended range of transmission.įind affordable ps2 to usb converter offers for successful data management on. With ps2 to usb converter products the user will receive a consistent connection that will not suffer from momentary lapses which are so common with wireless processing. One of the biggest concerns when trying to receive or transfer data is inconsistencies in connection. With shielded products such as these, no interference can corrupt the transmission of data. Proper use of these products can also drastically reduce any interference that is regularly caused by radio and electrical frequencies. Although passwords and protected wireless systems can stave off data breaches, a cabling system is much harder to hack. One of the primary benefits of using ps2 to usb converter cabling on is that it provides a higher level of security for office networks. In most cases, a network that shares data through physical cabling will be much more secure than a wireless system.
![ps2 keyboard to usb converter adapter ps2 keyboard to usb converter adapter](https://helloacm.com/wp-content/uploads/2014/11/ps2usb-adapter.jpg)
![ps2 keyboard to usb converter adapter ps2 keyboard to usb converter adapter](https://m.media-amazon.com/images/I/71NQ1BwNMmL._AC_SX450_.jpg)
Setting up new devices and systems can be made a lot easier with the use of ps2 to usb converter. With many safety breaches happening through wireless networks a lot of people are turning to ps2 to usb converter cables and accessories available on.