Commit Graph

49 Commits

Author SHA1 Message Date
Dave Hylands
0077958ad0 stmhal: Put all DMA channel & stream definitions in dma.h 2015-12-02 22:55:57 +00:00
Paul Sokolovsky
16d42368a6 stmhal/modmachine: Initial attempt to add I2C & SPI classes.
In new hardware API, these classes implement master modes of interfaces,
and "mode" parameter is not accepted. Trying to implement new HW API
in terms of older pyb module leaves variuos corner cases:

In new HW API, I2C(1) means "I2C #1 in master mode" (? depends on
interpretation), while in old API, it means "I2C #1, with no settings
changes".

For I2C class, it's easy to make mode optional, because that's last
positional param, but for SPI, there's "baudrate" after it (which
is inconsistent with I2C, which requires "baudrate" to be kwonly-arg).
2015-11-14 16:14:08 +02:00
Damien George
731f359292 all: Add py/mphal.h and use it in all ports.
py/mphal.h contains declarations for generic mp_hal_XXX functions, such
as stdio and delay/ticks, which ports should provide definitions for.  A
port will also provide mphalport.h with further HAL declarations.
2015-10-31 19:14:30 +03:00
Dave Hylands
34fe5a30c6 stmhal: Enable I2C support for F7 MCUs. 2015-08-05 23:38:24 +01:00
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
blmorris
c5175526dd stmhal/dma.c: Modify dma_init() to accept init struct as an argument
This removes hard-coded DMA init params from dma_init(), instead defining
these parameters in a DMA_InitTypeDef struct that gets passed as an
argument to dma_init()
This makes dma_init more generic so it can be used for I2S and SD Card,
which require different initialization parameters.
2015-06-24 17:48:52 +01:00
Damien George
6e1dfb0d1a stmhal: Reorganise code for parsing keyword args in I2C methods.
To make it the same as SPI and UART.
2015-06-22 23:46:22 +01:00
Damien George
76285469d3 stmhal: Make I2C use DMA when interrupts are enabled. 2015-06-10 14:01:44 +01:00
Damien George
17d9b5006d stmhal: Fix off-by-one error when checking for valid I2C and SPI bus. 2015-05-28 11:05:44 +01:00
Damien George
0e6f5e08e1 stmhal: Allow to name I2C busses, and give them names for pyboard. 2015-05-27 17:16:26 +01:00
Damien George
d15fe5a6b3 stmhal: Make I2C busses and their pins configurable in mpconfigboard.h. 2015-04-18 21:40:59 +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
05005f679e py: Remove mp_obj_str_builder and use vstr instead.
With this patch str/bytes construction is streamlined.  Always use a
vstr to build a str/bytes object.  If the size is known beforehand then
use vstr_init_len to allocate only required memory.  Otherwise use
vstr_init and the vstr will grow as needed.  Then use
mp_obj_new_str_from_vstr to create a str/bytes object using the vstr
memory.

Saves code ROM: 68 bytes on stmhal, 108 bytes on bare-arm, and 336 bytes
on unix x64.
2015-01-21 23:18:02 +00:00
Damien George
2cf6dfa280 stmhal: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:06:20 +00:00
Damien George
185cb0d943 stmhal: Use OSError with POSIX error code for HAL errors.
Addresses issue #921.
2014-10-23 14:25:32 +01:00
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
blmorris
86f0b31bcf Change boolean 'use_16bit_addr' to int 'addr_size', can be either 8 or 16 bits, default value is 8
to maintain compatibility with existing code.
2014-07-21 22:45:04 -04:00
blmorris
847a6b30b1 Incorporate stylistic changes suggested by @dhylands 2014-07-11 21:18:09 -04:00
blmorris
e687fdbcbc Add keyword argument 'memaddr_use_16b' to i2c.mem_read and mem_write methods
to allow these methods to transmit 16 bit addresses to an i2c device
Add 'memaddr_use_16b' to qstrdefsport.h
2014-07-11 16:14:01 -04:00
Damien George
40f3c02682 Rename machine_(u)int_t to mp_(u)int_t.
See discussion in issue #50.
2014-07-03 13:25:24 +01:00
Emmanuel Blot
f6932d6506 Prefix ARRAY_SIZE with micropython prefix MP_ 2014-06-19 18:54:34 +02:00
Damien George
5fc400ccdb stmhal: Document physical pins for SPI, I2C, UART busses. 2014-05-04 14:28:11 +01:00
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
Damien George
baa2afbb58 stmhal: Fix typos in class documentation. 2014-05-03 16:42:27 +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
dbc81df5d4 Simplify names for argcheck.c / arg parsing. 2014-04-26 11:19:17 +01:00
Damien George
6d3c5e4301 Add ARRAY_SIZE macro, and use it where possible. 2014-04-26 10:47:29 +01:00
Damien George
34f01c2ca1 stmhal: Add some documentation to I2C, SPI and USART modules. 2014-04-21 01:59:43 +01:00
Damien George
eb8bdf4df3 stmhal, SPI and I2C: Improvements to functionality and consistency. 2014-04-21 00:10:04 +01:00
Damien George
ff91156d34 stmhal: Improved configurability for I2C and SPI busses.
The HAL handles for the I2C/SPI objects are rather large, so we don't
want to unnecessarily include them.
2014-04-20 19:06:15 +01:00
Dave Hylands
f70630c58f Fix i2c and spi to compile for Netduino Plus 2 2014-04-20 00:06:03 -07:00
Damien George
57e415859a stmhal: Tidy up and improve consistency across modules. 2014-04-20 00:30:09 +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
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
1381146382 stmhal: Fix C bindings of I2C.read/write. 2014-04-16 10:43:03 +01:00
Damien George
2822d4e6ce stmhal: Add I2C functions for pure master read/write. 2014-04-16 00:27:14 +01:00
Damien George
e95da5b784 stmhal: Add I2C.scan method, to scan all devices on the bus.
Simple way to find the address of an attached I2C device.
2014-04-15 19:24:13 +01:00
Damien George
8a1cab952f py: Fix mp_get_buffer, and use it in more places.
Must use mp_obj_get_type to get the type of an object.  Can't assume
mp_obj_t is castable to mp_obj_base_t.
2014-04-13 12:08:52 +01:00
Damien George
60427864b1 stmhal: Move I2C objects to ROM. 2014-04-12 00:51:41 +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
3e1a5c10c5 py: Rename old const type objects to mp_type_* for consistency. 2014-03-29 13:43:38 +00:00
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
Damien George
6cfda3084d stmhal: Add I2C support; change accel driver to use new I2C. 2014-03-25 23:26:14 +00:00