Commit Graph

37 Commits

Author SHA1 Message Date
Damien George 0851751615 stmhal: Factor GPIO clock enable logic into mp_hal_gpio_clock_enable.
Extracted GPIO clock enable logic into mp_hal_gpio_clock_enable
and called from anyplace which might need to use GPIO functions
on ports other than A-D.

Thanks to Dave Hylands for the patch.
2015-08-03 00:14:48 +01:00
Dave Hylands 92d4b51ad5 stmhal: Add STM32F7DISC and associated changes. 2015-07-30 00:38:32 +01:00
Dave Hylands ea8bf81058 stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H. 2015-07-30 00:38:25 +01:00
Damien George 7693ef3bd6 stmhal: Allow ADC.read_timed to take Timer object in place of freq.
This allows a user-specified Timer for the triggering of the ADC read,
mirroring the new behaviour of DAC.write_timed.

Addresses issue #1129.
2015-07-22 19:41:13 +01:00
Kaspar Schleiser f5dd6f7f37 py/binary: Make return type of mp_binary_get_size size_t instead of int.
Fixes sign-compare warning.
2015-05-17 18:12:19 +01:00
Damien George b42a5050fb stmhal: Add support for STM32F411 MCU. 2015-04-18 22:15:59 +01:00
Damien George c92c7a69fd stmhal: Exclude code for those timers that don't exist in the hardware. 2015-04-18 21:40:58 +01:00
blmorris 4c45921349 stmhal: Use new %q format to print qstr's in a few more places.
Saves 68 bytes.
2015-04-16 22:30:00 +01:00
Damien George 7f9d1d6ab9 py: Overhaul and simplify printf/pfenv mechanism.
Previous to this patch the printing mechanism was a bit of a tangled
mess.  This patch attempts to consolidate printing into one interface.

All (non-debug) printing now uses the mp_print* family of functions,
mainly mp_printf.  All these functions take an mp_print_t structure as
their first argument, and this structure defines the printing backend
through the "print_strn" function of said structure.

Printing from the uPy core can reach the platform-defined print code via
two paths: either through mp_sys_stdout_obj (defined pert port) in
conjunction with mp_stream_write; or through the mp_plat_print structure
which uses the MP_PLAT_PRINT_STRN macro to define how string are printed
on the platform.  The former is only used when MICROPY_PY_IO is defined.

With this new scheme printing is generally more efficient (less layers
to go through, less arguments to pass), and, given an mp_print_t*
structure, one can call mp_print_str for efficiency instead of
mp_printf("%s", ...).  Code size is also reduced by around 200 bytes on
Thumb2 archs.
2015-04-16 14:30:16 +00:00
Damien George dfad7f471a stmhal: Optimise ADC.read_timed() so that it can sample up to 750kHz. 2015-03-23 22:36:51 +00:00
Damien George ac4f6b804f stmhal: Fix adc.read_timed so buffer store respects element size.
Addresses issue #1154.
2015-03-13 22:11:50 +00:00
Damien George 91fc4a9ce1 stmhal: Fix ADC multiplier from 4096 to 4095; optimise fp operation. 2015-02-11 00:25:22 +00:00
blmorris 97f14606f5 stmhal/adc.c: Fix calculation of read_core_vref()
There was a stray factor of 2 (VBAT_DIV) that looks like it was copied incorrectly from the read_core_vbat() function.
The factor exists in read_core_vbat() because VBAT is measured through a 2:1 voltage divider.
read_core_vref now returns values around 1.21V (assuming that external reference voltage is 3.3V) which is in line with the datasheet values.
See comment at http://forum.micropython.org/viewtopic.php?f=6&t=533&p=2991#p2991
2015-02-06 13:56:27 -05:00
Damien George 2cf6dfa280 stmhal: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:06:20 +00:00
Dave Hylands 39296b40d4 Fix timer overflow code.
Teensy doesn't need to worry about overflows since all of
its timers are only 16-bit.

For PWM, the pulse width needs to be able to vary from 0..period+1
(pulse-width == period+1 corresponds to 100% PWM)

I couldn't test the 0xffffffff cases since we can't currently get a
period that big in python. With a prescaler of 0, that corresponds
to a freq of 0.039 (i.e. cycle every 25.56 seconds), and we can't
set that using freq or period.

I also tested both stmhal and teensy with floats disabled, which
required a few other code changes to compile.
2014-09-27 19:40:37 -07:00
Damien George ecc88e949c Change some parts of the core API to use mp_uint_t instead of uint/int.
Addressing issue #50, still some way to go yet.
2014-08-30 00:35:11 +01:00
Damien George b0accc8571 stmhal: Fix printing of pin name in error message. 2014-08-16 13:56:19 +01:00
Paul Sokolovsky 5813efd634 stmhal: pyb.adc: Clarify that buffer with elements of any size can be used.
Based on forum post: http://forum.micropython.org/viewtopic.php?f=6&t=193
2014-06-29 21:34:58 +03:00
Dave Hylands 535b88133c Fix problem with ADC reads and multiple channels 2014-06-16 09:41:58 -07:00
Damien George 04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Paul Sokolovsky 9b71b16a94 unix,stmhal: Make "mpconfig.h" be first included, as other headers depend on it. 2014-05-02 18:08:16 +03:00
Damien George 8d09640b22 stmhal: Add documentation in comments, and script to generate HTML.
Decided to write own script to pull documentation from comments in C code.
Style for writing auto generated documentation is: start line with ///
and then use standard markdown to write the comment.  Keywords
recognised by the scraper begin with backslash.  See code for examples.

Running: python gendoc.py modpyb.c accel.c adc.c dac.c extint.c i2c.c
led.c pin.c rng.c servo.c spi.c uart.c usrsw.c, will generate a HTML
structure in gendoc-out/.

gendoc.py is crude but functional.  Needed something quick, and this was
it.
2014-04-29 22:55:34 +01:00
Damien George d689430e79 stmhal: Add SPI class.
Also some updates to compile with latest changes to core py.
2014-04-20 00:16:30 +01:00
Paul Sokolovsky 206dd2a905 stmhal: Update for mp_binary_get_size() refactor. 2014-04-19 03:27:37 +03:00
Damien George 38ae014e42 stmhal: Update ADC, DAC and I2C objects to use new buffer protocol.
Main reason for expanding buffer protocol API was to support writes to a
buffer in ADC module (see read_timed).  With this change you can now
create an array of arbitrary type and ADC.read_timed will store into
that array in the correct format (byte, int, float).  I wonder though if
all these changes were really worth it to support just this function.
Hopefully this enhanced buffer protocol API (with typecode specified)
will be used elsewhere.
2014-04-18 23:28:56 +01:00
Damien George c66d86c5ce stmhal: Big cleanup; merge gpio into Pin; make names consistent.
This is an attempt to clean up the Micro Python API on the pyboard.
Gpio functionality is now in the Pin object, which seems more natural.
Constants for MODE and PULL are now in pyb.Pin.  Names of some
classes have been adjusted to conform to CamelCase.  Other
miscellaneous changes and clean up here and there.
2014-04-18 22:38:09 +01:00
Damien George d553be5982 build: Simplify build directory layout by putting all headers in genhdr.
Any generated headers go in $(BUILD)/genhdr/, and are #included as
'genhdr/xxx.h'.
2014-04-17 18:03:27 +01:00
Damien George 4d7f4eb6a9 stmhal: Add ADC function to read data at a given frequency.
Reads ADC values into a bytearray (or similar) at a fixed rate.  Needs a
better name and improved API.  Also fix up DAC dma function (which also
needs a better name and API).
2014-04-15 19:52:56 +01:00
Damien George ea13f407a3 py: Change nlr_jump to nlr_raise, to aid in debugging.
This does not affect code size or performance when debugging turned off.

To address issue #420.
2014-04-05 18:32:08 +01:00
Damien George df6567e634 Merge map.h into obj.h.
Pretty much everyone needs to include map.h, since it's such an integral
part of the Micro Python object implementation.  Thus, the definitions
are now in obj.h instead.  map.h is removed.
2014-03-30 13:54:02 +01:00
Damien George d17926db71 Rename rt_* to mp_*.
Mostly just a global search and replace.  Except rt_is_true which
becomes mp_obj_is_true.

Still would like to tidy up some of the names, but this will do for now.
2014-03-30 13:35:08 +01:00
Damien George eed6f26bed stmhal: Use rt_check_nargs to check number of arguments. 2014-03-26 22:46:03 +00:00
Damien George 9b196cddab Remove mp_obj_type_t.methods entry and use .locals_dict instead.
Originally, .methods was used for methods in a ROM class, and
locals_dict for methods in a user-created class.  That distinction is
unnecessary, and we can use locals_dict for ROM classes now that we have
ROMable maps.

This removes an entry in the bloated mp_obj_type_t struct, saving a word
for each ROM object and each RAM object.  ROM objects that have a
methods table (now a locals_dict) need an extra word in total (removed
the methods pointer (1 word), no longer need the sentinel (2 words), but
now need an mp_obj_dict_t wrapper (4 words)).  But RAM objects save a
word because they never used the methods entry.

Overall the ROM usage is down by a few hundred bytes, and RAM usage is
down 1 word per user-defined type/class.

There is less code (no need to check 2 tables), and now consistent with
the way ROM modules have their tables initialised.

Efficiency is very close to equivaluent.
2014-03-26 21:47:19 +00:00
Damien George c12b2213c1 Change mp_method_t.name from const char * to qstr.
Addresses issue #377.
2014-03-26 20:15:40 +00:00
Dave Hylands f0729b19ad Fix netduino to build
Fix adc to work with resolution changes.
2014-03-24 23:26:41 -07:00
Damien George da5e269e51 stmhal: Make pyb.ADC the ADC class (not a function). 2014-03-24 19:27:13 +00:00
Dave Hylands 1403298a65 stmhal - fixed up adc stuff
Added support for the ADC channels and mappings to make_pins.py

I'm not sure if the hal properly deals with the channel 16/18 differences
between the 40x and 42x. It seems to deal with it partially. This particular
aspect will need testing on a 42x or 43x.
2014-03-24 11:16:35 -07:00