* Add F429 variant; add CAN on PD0,PD1; add 25Mhx clock; move CAN1_RX from PI8 to correct position (PI9)
* Add test for STM32F429
Signed-off-by: Arkadiusz Raj <arek.raj@gmail.com>
Writes over 496 bytes don't fit in a single "rpmsg" page. Request the
host limit the number of bytes outstanding to avoid getting "write:
(22)Invalid argument" errors.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Separate out the high-level command processing logic from the
low-level transmission code. Place the high-level code in
src/generic/canbus.c .
This also removes the CAN dependency on serial_irq.c .
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Don't perform any heavy tasks in the CAN interrupt handler - just
notify a background task to handle anything pending.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The spec states that the TX fifo is transmitted in chronological order
if the TXFP bit is set, but it's unclear if the software needs to fill
the tx fifo in a particular order to obtain that result. Use the TSR
CODE bit field to fill the TX fifo in the order that the hardware
reports as next.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Prefer explicitly setting the hardware registers and avoid using C
read and modify instructions where possible. This avoids race
conditions where an interrupt or hardware change could cause subtle
corruption of the register state.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Initial commit of code to support 1-wire (Dallas) sensors such
as the DS18B20. Requires Linux kernel drivers to create a file
in /sysfs which is read by this module, and temperature
typically returned to a temperature_fan.
Signed-off-by: Alan Lord <alanslists@gmail.com>
Signed-off-by: Josh Headapohl <joshhead@gmail.com>
The digital output commands implement a subset of the software pwm
commands. Change the host code to just use the software pwm commands
and simplify the micro-controller code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The HSI48 clock on the stm32f042 isn't as accurate as the main HSI
clock. So, only use the HSI48 clock when using USB to synchronize
that clock.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The code isn't actually capable of altering the mux registers due to
hardware checks enforced by the chip. Disable that code to save a few
bytes in the final binary.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
If the buffer pointer can't fit in a uint32_t then pass a relative
buffer offset instead. This fixes buffer handling on 64bit linux
mcus.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a helper function to convert from a string buffer passed in the
args[] parameter to an actual pointer. This avoids all the callers
needing to perfrom pointer manipulation.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Restore the default of an 8KiB bootloader for stm32f103 and a 32KiB
bootloader for stm32f207/stm32f407.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connor