Objective Development Forums

Horo,
Can you please post how did you measure the real pol in your post from 2009?

Thanks.

I am using ubuntu 16.04 LTS
And by all my measurments
it IS going at 1ms.

To further explain my point.

When i set to 1, i get 8 times faster transmission than settings it to 8.

Ok Maybe i am getting it wrong.

I meassure data rate.

With interrupt 1 , setting it to 1ms yeilds: 8KB/s.
That is measured and know to be correct.

So is that true 1ms or it is just the normal for 8ms?


I am not talking about control endpoints.
This is the endpoint 0x81

But it is going at 1ms

It reports in my python script at 8KB/s
which means it is going at 1ms.

If i set it to 8ms it reports 1KB/s as expected.

So i guess your the one arguing.

I got it by setting to 1.

Can i get faster?
I have tried setting it to 0 , but it just defaults to 8.

I saw sites that refere to the poll rate as refresh rate so i thought they are same.
I stand corrected.

The fastest poll rate i got was 1ms, can i go faster?.

I mean the refresh rate.

Can i use more than 2 interrupt-IN endpoints?
If not then why?
As up to 7 InT-OUT are usable.

Regards

i need to send around 20KB/s.
I was able to get 1ms poll with interrupts by simply setting the refresh rate to 1.
how many endpoints can i use?
Also , how much time does it take tk send the interrupt endpoint data ( is it 70us like a normal frame?)

Thanks

Ok so i was getting it wrong. What is the fastest poll rate for interrupts. The fastest i got is 1ms. Can i go faster? Also what is the max number of endpoints IN (Host in device out) 2 are doucmented.Can i get more? And if i set multible endpoints, will the host poll them in order? and with known p...

Why is control requests no fast.From my testing they are faster than interupts.I was able to reach 32KB/s with control.i canmot use padding as that would be very slow..

I dont wanr to send partial frames.i want execute code every 10 bits sent.then continue sending normally.

i Guess my request wasnt clear enough. What i am trying to understand is the timing of Vusb. I want to transmit ADC readings to the PC. I need to start the ADC every around 100us max. Than the cpu can continue with Vusb. What i though was that UsbPoll doesnt retuen untill all data is written. Then i...

If it was only that easy.

I need to configure the usn every 2 bytes
and not send the rest till the data is read.
putting it in usbFunctionread
i would miss 3 out of 4 readings

The request size if bigger than 2,
however i want to configure the adc every 2 Bytes.
so i want usbFunctionRead to be called every 2 bytes.

Hi,
I need usbFunctionRead to be called every 2 bytes instead of 8.
How do i modify source code to do that.

Thanks.