Using the CAN2 interface still requires that CAN1 be enabled, and the
filtering hardware is always on the CAN1 hardware block.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The existing sample times are not long enough to reliably sample the
internal temperature sensor. Longer sample times should also improve
results with temperature sensors that have a higher inductance.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Prefer explicitly setting the CR hardware register to defined values
during initialization.
Also, prefer "#if CONFIG_MACH_STM32H7" over bit definitions to make it
clear that the code applies only on stm32h7.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The stm32l412 doesn't have a PLLSAI1 clock and therefore the CKMODE
should not be set to zero.
The stm32h7 chips run the adc at 25mhz, so BOOST should be set to
0b10.
Improve timing comments.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Use the common lookup_clock_line() code to lookup the adc clock lines.
This also enables resets on the adc1/adc2 hardware block.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Not all chips implement hardware oversampling. The software already
implements oversampling, and additional hardware oversampling is
unlikely to improve results. Remove the hardware oversampling to
simplify the code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
On all chips, the JQDIS bit is set and the CONT, RES, ALIGN bits are
clear after a reset. There is no need to program the OVRMOD bit. Use
the same logic across chips to help unify the adc implementation.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Not all chips have the LDORDY flag, while all chips will stabilize in
10us. There is no need for two different implementations as it is
safe to wait 20us on all chips.
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 the build symbol. This is in preparation for enabling
HAVE_BOOTLOADER_REQUEST on usb and canbus.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a check to the start of initial_pins_setup() to make it easier for
gcc to optimize the code if it is not in use.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename canserial_send() to canbus_send() and canserial_set_filter() to
canbus_set_filter(). This makes it more clear where the code should
reside.
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>
Improve handling of race conditions with hardware updates. This is
the same changes applied to stm32f0_adc.c in commit 88325b6c.
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>
Kevin O'Connor