The rp2040 uses a pll vco divider of 6. Prefer setting postdiv1=6 and
postdiv2=1 (instead of the previous postdiv1=3 and postdiv2=2).
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Completely filling the spi transmit fifo could lead to a situation
where the rx fifo overflows. Make sure not to write past the rx fifo
size.
Also, be sure to wait for the transmission to fully complete before
exiting spi_transfer().
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>
The Fysetc PITB V2 board uses a spi bus config that is supported by the
RP2040 chip, but not klipper, so this adds the relevant config to the file
to allow you to run the tmc5160's on the board via hardware SPI. This
resolves the issue of software spi not working on this board, which I
was unable to fully understand.
I have also seen other users encounter similar bus config issues with
the rp2040 setting up things like accelerometers and such with this
pin layout.
As requested, this also uses the new convention for spi bus naming, while
maintaining the old bus names for compatibility.
Signed-off-by: Jessica Hunt <hunt.jessica@proton.me>
Rewrite chipid.c so that it contains just the USB and canbus id
manipulation code. Move the low-level chipid reading to bootrom.c.
Also, introduce a new bootrom_reboot_usb_bootloader() function in
bootrom.c so that the main.c code does not need to know the specifics
of rebooting into the bootrom.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The rp2350 chip requires a higher internal frequency, so choose a
value that works for both rp2040 and rp2350.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Some versions of the system memcpy() may make unaligned memory
accesses, which can result in a bus fault when accessing the usb dpram
device memory.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Recent versions of the rp2040 sdk no longer contain the elf2uf2 tool.
So, move that code to a new dedicated directory. This is in
preparation for updating the rp2040 sdk version.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
It seems recent arm gcc versions no longer build correctly using the
"--specs=nano.specs --specs=nosys.specs" linker flags. Replace those
linker flags with "-nostdlib -lgcc -lc_nano".
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Make sure to disable/enable the peripheral to ensure the clock
polarity is properly set prior to a change in CS.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Load the interrupt vector table into ram at startup. This reduces the
chance of a flash cache access causing timing instability.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Place all normal code into ram. This reduces the chance that rp2040
instruction cache misses could cause subtle timing issues.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Copy the code for these two functions to their respective callers.
This is in preparation for double buffer support.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add helper functions for manipulating the buffer memory and packet
control registers. This is in preparation for double buffer support.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a new HAVE_LIMITED_CODE_SIZE symbol that enables a menu to select
optional features. This symbol is enabled on chips with small build
sizes.
Replace the HAVE_GPIO_BITBANGING with four new symbols:
WANT_GPIO_BITBANGING, WANT_DISPLAYS, WANT_SENSORS, WANT_SOFTWARE_SPI,
and WANT_SOFTWARE_I2C. This allows users a little more flexibility
when selecting features they need.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
On a USB bus reset the controller address needs to be reset to zero.
Otherwise, the device becomes unresponsive after a USB reset and will
remain unresponsive until a power cycle. This often shows up in the
Linux system logs as "device descriptor read/64, error -32" messages.
Make sure USB_INTE_BUS_RESET_BITS is enabled and clear the USB address
on a bus reset.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Check for the build symbol prior to calling bootloader_request().
Enable the build symbol on rp2040, atsam, and atsamd chips.
This also enables serial bootloader requsts on rp2040, atsam, and
atsamd.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename canbus_send() to canhw_send() and rename canbus_set_filter() to
canhw_set_filter(). This makes it more clear where the code should
reside.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The rp2040 watchdog does not actually reset anything by default. The
psm_hw->wdsel field must be programmed to actually get a reset on a
watchdog failure. Program that field so the watchdog is usable.
Also, disable the watchdog before attempting a reboot into the
bootloader. Otherwise the machine may just reboot a second time due
to a missed watchdog event in the bootloader.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
