Hello Florian,
Florian Beier wrote:
Hi again,
I managed to use the libftdi without the D2xx commands to communicate
with my sensor.
I have on issue, I do not understand.
I am checking the buffer of my FT2232 chip. If it is empty, the
usb_bulk_read in the ftdi_read_data function takes almost 12 ms. If
the buffer has data, it only takes about 1 ms.
I tried to change the ftdi->usb_read_timeout, but it had no effect at all.
Any ideas?
Sounds like the on-chip latency timer, try to decrease it via
ftdi_set_latency_timer().
Cheers,
Thomas
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