Set correct SYSMPU register for proper USB operation. This bug was
introduced when the SYSMPU register names and defines were updated
in the commit:
"K64F: Updated the SYSMPU SDK driver"
93f8cfed05
Only clear the USB read buffer when endpointRead is called. This
allows data to be read with endpointReadResult without also allowing
USB to transfer more data. Instead additional data is transferred explicitly
with a call to endpointRead.
If a SETUP packet arrives shortly after an IN then the packets will be
processed in the wrong order - SETUP first then IN. This causes
the subsequent control transfer to fail. Fix this problem by processing
IN packets before processing SETUP packets.
Make the following improvements and fixes:
1.
Update the Kinetis USB driver so that endpointReadResult only reads the
result of the last read and does not trigger a new read. Instead
move the code to trigger new reads into endpointRead.
2.
Fix the race condition in controlIn caused by a call to
EP0read() followed immediately by EP0readStage(). This is done by
setting up to read the next setup packet (ignoring the status stage)
in endpointReadResult rather than in EP0readStage. This makes the
function EP0readStage unnecissary.
3.
Remove the Kinetis workaround in controlOut in USBDevice.cpp since
point 2 fixes this bug. For more info on this see the PR which
added this workaround - https://github.com/ARMmbed/mbed-os/pull/414
The ISTAT register is write 1 to clear. Because of this ORing this
register with itself fill clear all bits that are set. This patch
updates the code to use plain assignment so only desired
bit is cleared.
Merged from the existing TARGET_DISCO_F413ZH code (which has the same MCU)
and TARGET_NUCLEO_F412ZG code (which has the same Nucleo-144 board and
pinout).
jeromecoutant
Russ Butler
daid
Cruz Monrreal
Russ Butler
Adam Heinrich
Martin Kojtal
Steven Cooreman
bcostm
ccli8
Mihail Stoyanov