Commit Graph

59 Commits

Author SHA1 Message Date
Damien George
3b51b3e90f stmhal: Collect all root pointers together in 1 place.
A GC in stmhal port now only scans true root pointers, not entire BSS.
This reduces base GC time from 1700ms to 900ms.
2015-01-07 23:38:50 +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
7690b13953 stmhal: Add ability to mount custom block device. 2014-12-27 20:20:51 +00:00
Damien George
008251180d stmhal: Enhance pyb.freq to configure bus (AHB, APB1, APB2) freqs.
This is useful if you need precise control over the speed of
peripherals (eg SPI clock).
2014-12-08 21:32:55 +00:00
Damien George
1960475ed7 stmhal: Make pyb.[u]delay use systick with IRQs, busy loop otherwise.
pyb.delay and pyb.udelay now use systick if IRQs are enabled, otherwise
they use a busy loop.  Thus they work correctly when IRQs are disabled.
The busy loop is computed from the current CPU frequency, so works no
matter the CPU frequency.
2014-11-30 21:23:25 +00:00
Damien George
3b603f29ec Use MP_DEFINE_CONST_DICT macro to define module dicts.
This is just a clean-up of the code.  Generated code is exactly the
same.
2014-11-29 14:39:27 +00:00
Damien George
38bd762121 stmhal: Improve pyb.freq to allow 8 and 16MHz (not usable with USB).
Also restrict higher frequencies to have a VCO_OUT frequency below
432MHz, as specified in the datasheet.

Docs improved to list allowed frequencies, and explain about USB
stability.
2014-11-02 15:10:15 +00:00
Dave Hylands
8d62bbd46a Add pyb.hard_reset, and make sys.exit() or raise SystemExit do a soft reset. 2014-10-22 19:14:20 +01:00
Damien George
9b6617ea8b stmhal: Add pyb.stop() and pyb.standby() functions. 2014-10-09 19:02:47 +01:00
Damien George
d03c681608 stmhal: Use mp_uint_t where appropriate.
Found these by compiling stmhal with mp_uint_t of type uint32_t instead
of unsigned int.  This actually makes a difference to the code, but just
a curiosity.
2014-10-05 21:51:54 +01:00
Damien George
6dba992182 stmhal: Add config option to disable/enable CAN driver. 2014-10-05 18:05:26 +01:00
Damien George
24119176e7 stmhal: Allow pyb.freq() function to change SYSCLK frequency.
Eg pyb.freq(120000000) sets the CPU to 120MHz.  The frequency can be set
at any point in the code, and can be changed as many times as you like.
Note that any active timers will need to be reconfigured after a freq
change.

Valid range is 24MHz to 168MHz (but not all freqs are supported).  The
code maintains a 48MHz clock for the USB at all times and it's possible
to change the frequency at a USB REPL and keep the REPL alive (well,
most of the time it stays, sometimes it resets the USB for some reason).
Note that USB does not work with pyb.freq of 24MHz.
2014-10-04 01:54:31 +01:00
Damien George
3550de4ebe stmhal: Add basic CAN bus support. 2014-10-02 17:32:02 +01:00
Dave Hylands
a21f56b2d5 Added pyb.elapsed_millis and pyb.elapsed_micros
tested using:
stmhal: https://github.com/dhylands/upy-examples/blob/master/elapsed.py
teensy: https://github.com/dhylands/upy-examples/blob/master/teensy/elapsed.py
2014-09-28 11:24:44 -07:00
Damien George
29c92a407c stmhal: Use MP_OBJ_NEW_SMALL_INT directly in pyb.micros/millis.
Also some whitespace cleanup.
2014-08-25 17:38:55 +01:00
Dave Hylands
2bf044442e Add support for pyb.micros() by using the systick timer.
I also removed trailing spaces from modpyb.c which affected a couple
of lines technically not part of this patch.

Tested using: https://github.com/dhylands/upy-examples/blob/master/micros_test.py

which eventually fails due to wraparound issues (I could fix the test to compensate
but didn't bother)
2014-08-25 17:38:55 +01:00
Dave Hylands
9480138f0c Add save/restore_irq
Factored irq functions into a separate file.
2014-08-25 12:22:11 +01:00
Damien George
b63be37be1 stmhal: In safe mode, still mount SD card and present as MSD over USB.
It's still "safe" because no scripts are run.  Remove the SD card if you
want to access the internal flash filesystem.  Addresses issue #616.

Also: remove obsolete pyb.source_dir setting, and reset pyb.main and
pyb.usb_mode settings on soft-reset.
2014-08-16 14:23:22 +01:00
Damien George
65dd7bc13d stmhal: Change 0:/ and 1:/ to /flash and /sd; add CWD support.
Some important changes to the way the file system is structured on the
pyboard:

1. 0: and 1: drive names are now replaced with POSIX inspired
directories, namely /flash and /sd.

2. Filesystem now supports the notion of a current working directory.
Supports the standard Python way of manipulating it: os.chdir and
os.getcwd.

3. On boot up, current directory is /flash if no SD inserted, else /sd
if SD inserted.  Then runs boot.py and main.py from the current dir.
This is the same as the old behaviour, but is much more consistent and
flexible (eg you can os.chdir in boot.py to change where main.py is run
from).

4. sys.path (for import) is now set to '' (current dir), plus /flash
and /flash/lib, and then /sd and /sd/lib if SD inserted.  This, along
with CWD, means that import now works properly.  You can import a file
from the current directory.

5. os.listdir is fixed to return just the basename, not the full path.

See issue #537 for background and discussion.
2014-07-31 23:44:04 +01:00
Damien George
3c4db9f91c stmhal: Add USB_VCP class/object, for direct USB VCP control.
Before, pyb.stdin/pyb.stdout allowed some kind of access to the USB VCP
device, but it was basic access.

This patch adds a proper USB_VCP class and object with much more control
over the USB VCP device.  Create an object with pyb.USB_VCP(), then use
this object as if it were a UART object.  It has send, recv, read,
write, and other methods.  send and recv allow a timeout to be specified.

Addresses issue 774.
2014-07-31 10:30:42 +01:00
Damien George
951ed9d02f stmhal: Fix REPL printing by cooking output sent to stdout_obj.
Recent changes to builtin print meant that print was printing to the
mp_sys_stdout_obj, which was sending data raw to the USB CDC device.
The data should be cooked so that \n turns into \r\n.
2014-07-20 13:57:43 +01:00
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
2547928148 stmhal: Add Python function to set UART for REPL.
This adds a hook to get/set pyb_uart_global_debug from Python, using
pyb.repl_uart().  You can set it to an arbitrary UART object, and then
the REPL (in and out) is repeated on this UART object (as well as on USB
CDC).

Ultimately, this will be replaced with a proper Pythonic interface to
set sys.stdin and sys.stdout.
2014-06-15 09:47:27 +01:00
Damien George
34ab8dd6dd stmhal: Update and improve LCD driver.
Still some method names to iron out, and funtionality to add, but this
will do for the first, basic version.
2014-06-15 00:41:47 +01:00
Damien George
57b4dfa9c9 stmhal: Fix pyb.bootloader so it works for gcc-4.9.0.
See PR #618.
2014-06-08 14:01:43 +01:00
Damien George
6d197740cf stmhal: Stop USB before entering DFU by software. 2014-05-21 19:25:34 +01:00
Damien George
f905ebb173 stmhal: Make pyb.bootloader take no arguments. 2014-05-19 18:26:51 +01:00
Sven Wegener
9bf4f7e3d3 stmhal: Remap system flash and adjust addresses
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
2014-05-18 13:15:02 +02:00
Sven Wegener
7ae8e4b679 stmhal: Activate bootloader with pyb.bootloader()
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
2014-05-18 12:51:21 +02:00
Damien George
8c1c7488b2 Add gc.enable, gc.disable; remove pyb.gc. 2014-05-08 23:04:49 +01:00
Paul Sokolovsky
33b3a6905d stmhal: pyb: Use gc() function as defined by standard module "gc".
TODO: Get rid of this compatibility define and rely on standard module.
2014-05-06 02:28:49 +03:00
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
bff1ff28ee stmhal: Fix bug where negative delay/udelay lead to huge delays.
A negative ms/us is now treated as a delay of 0 ms/us.  This patch also
improves the calibration of udelay.
2014-05-03 14:11:56 +01:00
Damien George
5874c1c92b stmhal: Remove #include <stdint.h> from mpconfigport.h.
Make include dependencies neater, and adheres to the coding convention
that headers should not include headers.
2014-05-03 13:24:21 +01:00
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
6d3c5e4301 Add ARRAY_SIZE macro, and use it where possible. 2014-04-26 10:47:29 +01:00
Damien George
6125ba4a7f stmhal: Make switch a class, to follow suit of all other modules.
Instead of pyb.switch() as a function, it's more consistent (with
respect to all the other modules and peripherals) to have
pyb.Switch() create a switch object.  This then generalises to having
multiple switches.  Call the object to get its state.  Use sw.callback
to set the callback function for when the switch is pressed.
2014-04-21 18:23:50 +01:00
Damien George
7fdfa93700 stmhal: Add Timer class: simple TIM control, incl callback on IRQ.
Simple but functional timer control.  More sophistication will
eventually be added, or for now just use direct register access :)

Also added pyb.freq() function to get MCU clock frequencies.
2014-04-21 16:48:16 +01:00
Damien George
7533700393 stmhal: Rename USART to UART.
It's really a UART because there is no external clock line (and hence no
synchronous ability, at least in the implementation of this module).
USART should be reserved for a module that has "S"ynchronous capabilities.

Also, UART is shorter and easier to type :)
2014-04-21 12:03:09 +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
6e44381cce stmhal: Improve RTC class; make fatfs use RTC for time stamping files. 2014-04-19 02:17:30 +01:00
Damien George
ed5117f6a8 stmhal: Add pyb.unique_id, to get unique id of MCU. 2014-04-19 01:28:18 +01:00
Damien George
44ee42de50 stmhal: Rename pyb.Led to pyb.LED to conform to naming rules.
It's Light Emitting Diode, so should be LED.
2014-04-19 00:54:33 +01:00
Damien George
8cf08a58a1 stmhal: Remove pyb.input (use sys.stdio.read(1) instead). 2014-04-19 00:50:50 +01:00
Damien George
a8f5d15fc6 stmhal: Update help and comments re gpio changing to Pin. 2014-04-18 22:48:59 +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
f6be480bda stmhal: Add pyb.have_cdc function to check if USB CDC device is enabled. 2014-04-16 15:52:50 +01:00
Damien George
6dba016a56 stmhal: Add pyb.wfi() function (calls __WFI). 2014-04-14 01:45:24 +01:00
Damien George
0aab675108 stmhal: Little hack to dump GC allocation table using pyb.info().
Pass a single parameter (doesn't matter what): pyb.info(1), will dump
the GC alloc table.
2014-04-13 11:10:58 +01:00