Slightly different question ...

Folks,

I am in a hurry to get 256 bytes of data from a PC to a PIC, and 128
bytes back again.  Also I want priority of the bus, as it's busy.
I thought I would therefore set up 6 endpoints on the PIC, 4 OUT and
2 IN, and would give a series of commands like:
ret = usb_interrupt_write(dev, EP3_OUT, EP3_data, 0x40, 200);
ret = usb_interrupt_write(dev, EP4_OUT, EP4_data, 0x40, 200);
ret = usb_interrupt_write(dev, EP5_OUT, EP5_data, 0x40, 200);
ret = usb_interrupt_write(dev, EP6_OUT, EP6_data, 0x40, 200);
ret = usb_interrupt_read(dev, EP3_IN, EP3_indata, 0x40, 200);
hoping they would all go into one, 1ms, USB frame.  I am coming
to the conclusion that this does not work and they *seem* to go
one per frame.

Am I being over-ambitious?!

Martin
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