Support a USB interface that shows up as a canbus adapter to linux.
Route both local and real canbus packets over that interface.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename the canbus.c code to canserial.c and introduce new wrapper
functions in canbus.c that connect the low-level canbus hardware code
to the high-level canserial.c code.
This is in preparation for adding "usb to canbus bridge mode".
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Move the uuid hash calculation to canbus.c and call canbus_set_uuid()
from src/stm32/chipid.c . This simplifies the low-level canbus
hardware code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Previously the code had canbus_read() which was called from task
context (for admin messages), and canbus_process_data() which was
called from irq context (used for data messages). Change that to a
single canbus_process_data() function that is called from irq context
(used for all messages). This simplifies the low-level hardware
specific canbus code and should make it easier to support other
hardware implementations.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Create a single CanData global variable to track the canbus state.
ARM micro-controllers generally produce better code when global
variables are in a struct.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The rp2040 USB may not connect after a reset. Implementation the
recommended workaround.
Signed-off-by: Lasse Dalegaard <dalegaard@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The CanBoot bootloader can often fit in 4KiB and that may be useful
for some devices with small flash sizes.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Allows a limited number of DS18B20 read failures
before stopping the printer. This is designed to
tolerate spurious read errors, while still stopping
for serious issues.
The printer will stop when the sensor
fails to report a value five times in a row.
Implementation works as follows:
The MCU reports any read errors using a new "fault"
parameter in its answers.
The Python code tracks the number of errors
and triggers the shutdown. This paves the way for
more sophisticated error handling in the future,
as well as an example for other sensors to follow.
Signed-off-by: Lorenzo Pfeifer <Lorenzo.Pfeifer+github@googlemail.com>
When CanBoot is detected set its bypass signature when a
reset is requested.
Add a "try_request_canboot()" method that may be called
from from USB and Canbus bootloader requests.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
This adds a command which allows an external script to broadcast a
bootloader request, using a supplied UUID to match the request.
Included is a method to process requests to enter the canboot
bootloader.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
This is needed for the Creality Ender 3 S1 with the STM32F401 chips to enable a 64kib bootloader offset
Signed-off-by: James Hartley <james@hartleyns.com>
Accidentally introduced in 8049243221,
renders the AFE non-functional on SAME70. Should have had little impact
on SAM4E.
Signed-off-by: Alex Maclean <monkeh@monkeh.net>
Similarly to commit 8cf1b512 for SPI, the Rpi4 has more i2c busses to offer
This change allows klipper to use up to I2c bus 6
/boot/configtxt
dtparam=i2c_arm=on
dtoverlay=i2c6
and
pi@fluiddpi:~ $ ls -1 /dev/i2c*
/dev/i2c-1
/dev/i2c-6
Signed-off-by: Sylvain Dansereau <brutus_dansereau@hotmail.com>
Kevin O'Connor