On 4/24/22 03:31, Peter Jeremy wrote:
11:02:59.641528 usbus0.2
DONE-CTRL-EP=00000000,SPD=HIGH,NFR=1,SLEN=8,IVAL=0,ERR=0
frame[0] READ 8 bytes
0000 A3 77 65 86 A3 77 65 86 -- -- -- -- -- -- -- -- |.we..we. |
Hi,
This byte sequence looks like garbage. It should be idential to that of
the host side. If this happens after a while if means that the OTG FIFO
size is incorrectly set, see this printout:
> usbus0: Dynamic FIFO sizing detected, assuming 16Kbytes of FIFO RAM
^^^ try having a look in the driver where this comes from.
Try setting 8Kbytes or 1KBytes.
--HPS
