Commit Graph

33 Commits

Author SHA1 Message Date
robert-hh
f00356a486 samd/clock_config: Split clock_config.c to separate SAMD21/SAMD51 files.
And put the file into the mcu directory.  The file got a little bit long
and hard to read.
2022-10-06 23:01:58 +11:00
robert-hh
929dfc66a3 samd/mpconfigport: Restructure to use ROM feature levels.
Changes are:
- Set the feature level for each MCU: CORE features for SAMD21, and EXTRA
  features for SAMD51.
- Remove all definitions that are included in the core feature level.
- Keep the default settings for feature level and float, to make the choice
  obvious.
2022-10-06 23:00:44 +11:00
robert-hh
a415752173 samd/machine_bitstream: Add the machine.bitstream() function.
The SAMD21 implementation is an adaption of @jimmo's code for STM32Lxx.
The only changes are the addresses and names of the port registers and the
timing parameters.

SAMD21: The precision is about +/-25ns at 48MHz clock frequency.  The first
two cycles are about 40-60 ns longer than set.  But still good enough to
drive a neopixel device.

SAMD51: The precision is about +/-30ns at 120MHz clock frequency.  Good
enough to drive a neopixel device.
2022-10-06 23:00:00 +11:00
robert-hh
aa6dbbcffd samd/mcu: Factor out MCU policy for SAMD21 and SAMD51.
Which contains a mpconfigmcu.h, mpconfigmcu.mk and manifest.py file for
each MCU group.  That looks better than the previous choice.
2022-10-06 22:56:13 +11:00
robert-hh
f5da77b5ce samd/machine_dac: Add the machine.DAC class.
It suuports 1 channel @ 10 bit for SAMD21, 2 channels @ 12 bit for SAMD51.

Instantiation by:

    dac = machine.DAC(ch) # 0 or 1

Method write:

    dac.write(value)

The output voltage range is 0..Vdd.
2022-10-06 22:55:10 +11:00
robert-hh
7a2f2d88f7 samd/machine_wdt: Add the machine.WDT class. 2022-10-06 22:53:06 +11:00
robert-hh
32c973d554 samd/machine_timer: Add machine.Timer based on the shared soft-timer. 2022-10-06 22:52:39 +11:00
robert-hh
15212ae8d4 samd/moduos: Add uos.dupterm(). 2022-10-06 22:49:19 +11:00
robert-hh
94d27ae28f samd/machine_i2c: Add the machine.I2C class.
Using the common API.  Tested with SAMD21 and SAMD51 boards.
2022-10-06 22:49:06 +11:00
robert-hh
aa870708ac samd/machine_spi: Add the machine.SPI class.
Suported by both SAMD21 and SAMD51.  It follows the generic API, except for
the bits=nn option, which is not implemented (yet).
2022-10-06 22:48:44 +11:00
robert-hh
b33f204529 samd/machine_uart: Add the machine.UART class.
All board pins that have UART's assigned can be used.  Baud rate range is
75 Baud to ~2 MBaud.

No flow control yet, and only RX is buffered.  TX buffer and flow control
may be added later for SAMD51 with its larger RAM and Flash.
2022-10-06 22:48:12 +11:00
robert-hh
4b6f6ccf88 samd/machine_pin: Add pin.irq() to the machine.Pin class.
Its API conforms to the docs.  There are 16 IRQ channels available, which
will be used as assignable to the GPIO numbers.  In most cases, the irq
channel is GPIO_no % 16.
2022-10-06 22:46:53 +11:00
robert-hh
d693758ab2 samd/machine_pwm: Add the machine.PWM class.
Features are:
- 3 to 5 different frequency groups.
- Freq range of 1Hz - 24 MHz.
- Duty rate stays stable on freq change.

Keyword options to the PWM constructor:
- device=n Select a specific PWM device.  If no device is specified, a free
           device is chosen, if available at that pin.
- freq=nnnn
- duty_u16=nnnn
- duty_ns=nnnn
- invert=True/False Allowing two outputs on the same device/channel to have
                    complementary signals.

If both freq and duty are provided, PWM output will start immediately.

Pins at the same device have the same frequency.  If the PWM output number
exceeds the number of channels at the PWM device, the effctive channel_no
is output_no % channel_count.  So with a channel count of 4, output 7 is
assigned to channel 3.  Pins at a certain channel have the same frequency
and duty rate, but may be seperately inverted.
2022-10-06 22:42:55 +11:00
robert-hh
5c7e93ec48 samd/machine_adc: Add the machine.ADC class.
With the method read_u16().  Keyword arguments of the constructor are:
- bits=n    The resolution; default is 12.
- average=n The average of samples, which are taken and cumulated.  The
            default value is 16.  Averaging by hw is faster than averaging
            in code.

The ADC runs at a clock freq 1.5 MHz.  A single 12 bit conversion takes
8 microseconds.
2022-10-06 22:41:44 +11:00
robert-hh
6c037af086 samd/boards: Create pin_af_table.c from pin_af_table_SAMDxx.csv files.
This step just creates the table.  The firmware cannot be built at this
commit.  The next commit will complete the pin-af mechanism.
2022-10-06 22:38:45 +11:00
robert-hh
4013577af2 samd/modmachine: Enable SoftSPI and SoftI2C. 2022-10-06 22:38:33 +11:00
robert-hh
b4d29fd47a samd/clock_config: Set up the clock configuration.
Clock settings:
- GCLK0: 48 MHz (SAMD21) or 120 MHz(SAMD51).
- GCLK1: 32768 Hz for driving the PLL.
- GCLK2: 48 MHz for tzhe peripheral clock.
- GCLK3: 1 MHz (SAMD21) or 8 MHz (SAMD51) for the µs ticks timer.
- GCLK8: 1 kHz for WDT (SAMD21 only).

If a 32 kHz crystal is present, it will be used as clock source.  Otherwise
the DFLL48M in open-loop mode is used.

GCLK0 for SAM51 can be changed between 48 MHz and 200 MHz.  The specified
range is 96 MHz - 120 MHz.
2022-10-06 22:33:31 +11:00
robert-hh
c4f7c0b8a2 samd/Makefile: Alphabetically sort the source code files in Makefile. 2022-10-06 22:31:03 +11:00
robert-hh
a5d5ecbf84 samd/boards: Move mcu-specific settings into a mpconfig_samdXX.h file.
Located at the boards directory. That way, the mpconfigboard.h files are
almost empty, just setting the board name and the MCU name.
2022-10-06 22:30:37 +11:00
robert-hh
0420799a84 samd/boards: Replace pins.c and pins.h by pins.csv.
The files pins.c and pins.h are generated during the build process from
pins.csv, using a make-pins.py script.
2022-10-06 22:29:49 +11:00
Jim Mussared
be83c08f46 ports: Always append to GIT_SUBMODULES.
Avoids overwriting submodules required by base makefiles.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2022-08-03 00:05:26 +10:00
Angus Gratton
fdfe4eca74 ports: Always include debug information in the ELF.
For bare metal ARM & xtensa targets, passing -g will make the ELF file
larger but doesn't change the binary size.  However, this means tools like
gdb, addr2line, etc can extract source-level information from the ELF.

Also standardise -ggdb to -g, these produce the exact same ELF file on
arm-none-eabi-gcc and will use DWARF format for all these ports.
2022-07-29 11:24:00 +10:00
David Lechner
81dbea1ce3 shared/readline: Use MP_REGISTER_ROOT_POINTER().
This uses MP_REGISTER_ROOT_POINTER() to register the readline_history root
pointer array used by shared/readline.c and removes the registration from
all mpconfigport.h files.

This also required adding a new MICROPY_READLINE_HISTORY_SIZE config option
since not all ports used the same sized array.

Signed-off-by: David Lechner <david@pybricks.com>
2022-07-18 13:48:49 +10:00
David Lechner
c118b5d0e4 extmod/extmod.mk: Separate out extmod file list from py.mk to extmod.mk.
This separates extmod source files from `py.mk`.  Previously, `py.mk`
assumed that every consumer of the py/ directory also wanted to include
extmod/.  However, this is not the case.  For example, building mpy-cross
uses py/ but doesn't need extmod/.

This commit moves all extmod-specific items from `py.mk` to `extmod.mk` and
explicitly includes `extmod.mk` in ports that use it.

Signed-off-by: David Lechner <david@pybricks.com>
2022-06-21 00:14:34 +10:00
Damien George
94077c6402 samd/moduos: Convert module to use extmod version.
Signed-off-by: Damien George <damien@micropython.org>
2022-03-09 10:03:23 +11:00
Peter van der Burg
cd2223b8fe samd: Integrate latest asf4, add help, more time funcs and uPy features.
- Makefile: update to use new ASF4 files, support frozen manifest, and
  include source files in upcoming commits
- boards/manifest.py: add files to freeze
- boards/samd51p19a.ld: add linker script for this MCU
- help.c: add custom help text
- main.c: execute _boot.py, boot.py and main.py on start-up
- modules/_boot.py: startup file to freeze
- modutime.c: add gmtime, localtime, mktime, time functions
- mpconfigport.h: enabled more features for sys and io and modules
- mphalport.h: add mp_hal_pin_xxx macros
- mphalport.c: add mp_hal_stdio_poll
2021-11-19 11:05:05 +11:00
Damien George
a5ac3d5645 samd: Add support for building with user C modules.
Fixes issue #7545.

Signed-off-by: Damien George <damien@micropython.org>
2021-07-22 22:22:03 +10:00
Damien George
136369d72f all: Update to point to files in new shared/ directory.
Signed-off-by: Damien George <damien@micropython.org>
2021-07-12 17:08:10 +10:00
Jim Mussared
710426024a all: Factor gchelper code to one place and use it for unix & ARM ports.
No functionality change is intended with this commit, it just consolidates
the separate implementations of GC helper code to the lib/utils/ directory
as a general set of helper functions useful for any port.  This reduces
duplication of code, and makes it easier for future ports or embedders to
get the GC implementation correct.

Ports should now link against gchelper_native.c and either gchelper_m0.s or
gchelper_m3.s (currently only Cortex-M is supported but other architectures
can follow), or use the fallback gchelper_generic.c which will work on
x86/x64/ARM.

The gc_helper_get_sp function from gchelper_m3.s is not really GC related
and was only used by cc3200, so it has been moved to that port and renamed
to cortex_m3_get_sp.
2020-04-29 23:45:19 +10:00
Jim Mussared
211032a5c9 samd: Fix to build with latest tinyusb. 2020-03-11 15:34:10 +11:00
Damien George
d7a9388fe0 ports: Add new make target "submodules" which inits required modules. 2019-10-15 17:14:41 +11:00
Jim Mussared
a5d85d306c samd: Make common linker scripts, rename board.mk to mpconfigboard.mk.
The rename matches other ports, e.g. stm32, and gives consistency with
mpconfigboard.h.
2019-08-16 00:26:54 +10:00
Damien George
5f9bd11527 samd: Add new port to Microchip SAMDxx microcontrollers.
Initially supporting SAMD21 and SAMD51.
2019-07-01 17:19:18 +10:00