gpio reset calls are heavy.
gpio state are persistent between calls.
Drop useless calls.
Avoid calls if SDA does not changed.
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
On fast MCU software spi may violate maximally supported by TMC driver rate.
Add dynamic limits to overcome that.
Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
This reverts commit 8087200ffe2fbbe62265dd480ce8be67db8349eb.
The change can break the build on some versions of gcc.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Support setting individual options instead of one global option (
WANT_BUTTONS, WANT_TMCUART, WANT_NEOPIXEL, WANT_PULSE_COUNTER,
WANT_HX71X).
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This option seems to be confusing ld's region usage checks (builds
that could fit in small chips are being reported as not fitting). The
option was disabled back in commit 4e8674d5 because it showed worse
results. However, recent versions of gcc seem to produce the same
results even if this option is enabled, so change the build to avoid
disabling that option on newer versions of gcc (those that have the
-ffat-lto-objects option - which is needed to ensure
compile_time_requests sections can be extracted with objcopy).
The PRU build is dependent on -fuse-linker-plugin, so enable that
option explicitly in its build.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The i2c_delay() function did not properly handle counter rollovers.
It also performed an expensive run-time divide.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
It seems both ERRIE and LECIE must be enabled to get hardware error
interrupts. Without this, the rx_error and tx_error reports are
likely to always be zero.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a new "low level option" to allow users to configure if they want
to optimize for Trinamic drivers or traditional stepper motor drivers.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for "step on both edges" to the main stepper_event_full()
code. This makes that mode of operation available even when the
micro-controller is not compiled for "optimized step on both edges".
It also enables the custom pulse duration support (step_pulse_ticks)
when in "step on both edges" mode.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
STM32F401 has USART6 on PA12/PA11 and PC7/PC6 with alternate
function mapping AF08. This can be used, for example, to connect
to the Elegoo Neptune 3, where PA12/PA11 are wired to an RJ10 plug
going to the stock screen.
Signed-off-by: Marius Petcu <marius@petcu.me>
The Linux kernel reports a canbus message as transmitted when it gets
the echo frame back. Processing the message prior to sending the echo
frame can lead to odd looking debugging logs (as the response messages
may appear to predate the request messages). This doesn't impact the
Klipper code, but it does make analyzing logs harder. Fix by sending
the echo frame prior to processing the frame.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Don't limit the canbus_notify_tx() wakeup to cases where notify_local
is set - perform the wakeup whenever the host_status field indicates
the main task has work pending.
This fixes a small race condition where the main task could block
sending a usb echo frame, and the canbus_send() code gets called as
the usb bandwidth becomes available but before a usb wakeup
notification is sent. In that situation, the usb code may not issue a
wake event and the echo frames may be delayed.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
It seems the Linux kernel will consider a maximum size usb packet to
be a transaction that will continue into the next usb packet. It will
thus hold on to the traffic from the first packet until it gets the
next packet. However, if the mcu has no further data to send after
the first packet then the data could get delayed for an extended
period of time.
To avoid this, check for transmissions that could end on a maximum
sized packet and send that data in two packets instead. This avoids
this unusual corner case.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Move the definition of the usb endpoint sizes from usb_cdc.h to
usb_cdc_ep.h . This allows individual boards to override the default
endpoint sizes.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
If the low-level canbus stops working then it could become impossible
to send messages to and from the canbus bridge node itself. This can
make it difficult to diagnose canbus problems.
Change the canbus bridge code to detect if message transmits become
stalled for 50+ milliseconds and go into a "discarding" state. In
this discarding state, messages destined for the canbus will be
discarded until the canbus becomes active again. In this discarding
state it will therefore be possible to transmit messages to and from
the canbus bridge node.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add support for a new get_canbus_status command to canserial.c .
Add new canbus_stats.py module that will periodically query canbus
mcus for connection status information.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
