Search:

My issue was fixed a long time ago, you should open a new thread with your exact issue to make it more clear :-)

Hello,

Does anyone know if the teensy 4.1 board offers higher possible serial speeds compared to the teensy 4.0 (which ser1 is about 3 Mbps max if I am right) ?

thanks,

There is definitively something strange with the t36 library.

For the teensy mouse only exemple If I manually add the pipe_t at the second node level I manage to get a refresh rate of 1000 hz,...

Yes I am using debug on to try to find the issue.
If you simply comment (or delete)
KeyboardController keyboard1(myusb); the driver won't load, is not claimed by t36, the periodic table looks like...

Hello,

I posted about a year ago about an issue with my mice being stuck at 500 Hz using USBHost_t36. Back then I though it could be a hardware problem.
I unfortunatly reproduce the same issue on...

Yes - thanks for the answer - that's what I did so far but somehow when I read data back from teensy it's corrupted. It acts exactly the same as when I set a wrong baudrate in the arduino serial...

Hello,

I am trying the teensy 4.0 as a usb to serial converter, I want to test its latency performances.
My build is :
PC <--> teensy 4.0 as a usb to serial converter <--> teensy 3.6

My...

Does anyone know if the different USB Type options will be back any time soon for the teensy 4.0 ?

Yes I did that to debug, but these clues you gave me about which slots are filled may help me to go forward. I simply used 1000hz mice, a zowie fk1 one and a finalmouse ultralight phantom with a...

Yes, sorry Paul I realize I didn't make it clear.
I didn't update to Mojave yet indeed for dev reasons, I'm using Mac OS High Sierra, last update : 10.13.6.
I used my mac partition to have a clean...

Ok, I chcked data, interval is 1 all the time, usb dev speed is full speed.
I then though that the fact it is stuck to 500 hz was because the periodic list table was too small for this use case.
I...

Weird behaviour :

If I change only the string0 value to 0x0000, it is read :
String Descriptor Table
--------------------------------
Index LANGID String
0x00 0x0000 0x0000
0x01 ...

Ok, so I have tested it like that :
- New installation of arduino 1.8.7 on Mac OS (updated), never installed arduino there before
- new installation of teensyduino 1.44
- Empty sketch (empty...

Ok, I will get all the tools up to date and clean on another computer, and test again :-)

Uhm, I use an app called USBDeview to check usb descriptors.
With all my mice the string descriptor are well formed, but with the teensy impl I have this problem.

The definitions are good, but I believe they are lost somewhere as when you inspect the usb descriptor when pluging in your teensy device, it's not taken into account :

Index LANGID String
0x00...

Hello,

I made an issue about it on github but I'm not sure it is regularly checked, so I post about it on the forum too :-)

There may be an issue with the string descriptor information sent on...

Hello,

I am playing around with the usb host library,
I've tested with a few mice which are firmware set to 1000hz (even without any drivers) but the usb host library polls each of them at 500hz....

Aha, yes it seems obvious now we are working on the same kind of project :D

Yes in the end everything works almost perfectly. If you went for a pciescreamer I’m not sure pcileech is the best way...

Oh yes I already profit from the high speed of the native port.

But for my use case I need a second port to talk with another computer, so I wanted some advices on what models I could choose to...

Hello,

I have been using a usb to ttl bridge based on the CP2102 chip for a month now, and it suddenly stopped working. It is not recognized at all by Windows anymore and when it is plugged in the...

Hi,
I hope my answer doesn’t come too late.

Yes it is under 1ms.

I have fixed all my issues so far, and in the end I’m really satisfied with the teensy, no regrets at all, that lil micro...

What do you want to do exactly ?
I don't know yet if you got the same usecase as me but, for my case, it's ok but not perfect. I feel overall there is a small delay (maybe from reading/writing to...

Quick update :

I went for a teensy 3.6, and added a usb to ttl (CP2102).
It does exactly what I needed, and I am not sure yet if it fits my needs in term of performance, but at first sight with...

So basically my goal is to run an application on the pc2 that will send commands always in the pc2 -> pc1 way.
The teensy would be recognized as a mouse on the pc1 and would receive the commands...

Hello everyone,

I have just discovered teensy recently and I would like you to help me to know if it can accomplish what I would like to make.

My project is to simulate a mouse (also keyboard)...