Commit Graph

32 Commits

Author SHA1 Message Date
Dan Halbert 86a0f9a861 save about 112 bytes 2022-10-09 19:22:39 -04:00
Dan Halbert 9baa2724a7 code formatting suggestion 2022-08-01 00:27:25 -04:00
Dan Halbert 1348cb435b Fix SAMD I2C frequency check 2022-07-29 19:07:33 -04:00
Scott Shawcroft 9d10a3da66
Conditionalize LTO 2022-05-27 12:59:54 -07:00
Dan Halbert f63b26c534 address jepler's comments and further squeezes 2022-05-20 10:10:55 -04:00
Dan Halbert a01dec1df9 message consolidation and more use of validators 2022-05-19 15:38:37 -04:00
Dan Halbert cc410ad6a3 common-hal I2C combined write_read 2022-01-31 22:03:30 -05:00
Dan Halbert fc440e7609 move sercom_reset() etc. out of busio/SPI.c to busio/__init__.c 2021-10-19 15:18:32 -04:00
Jeff Epler 26d33658ea samd: diagnose out of range I2C frequency
The frequency divisor is limited to 255, which gives 48MHz/2/255 ~= 94.1kHz as
the lowest speed.

Without this change, values below this cut-off gave higher frequencies instead,
which didn't appear to have any relation to the frequency value requested.

Closes: #4883
2021-08-20 15:22:35 -05:00
Scott Shawcroft fece0fb432
Fix crash when UART construct fails
After the script stops with the exception thrown the final gc_sweep
will call any finalizers and they usually call deinit. deinit on
invalid objects can wreak havoc by changing random memory or
(hopefully) crashing. This fixes ensures the object is deinited
until initialization succeeds and the object is valid.

Do the same fix for I2C and SPI too.

Fixes #4700 and fixes #5005
2021-07-20 17:15:19 -07:00
Jeff Epler e95e921ca1 codeformat: Fix filename matching
In #4683, tannewt noticed that uncrustify was not running on some
file in common-hal.

I investigated and found that it was not being run on a bunch of paths.

Rather than make incremental changes, I rewrote list_files to work
bsaed on regular expressions; these regular expressions are created from
the same git-style glob patterns.

I spot-checked some specific filenames after this change, and all looks good:

```
$ python3 tools/codeformat.py -v --dry-run tests/basics/int_small.py ports/raspberrypi/common-hal/pulseio/PulseIn.c extmod/virtpin.c tests/thread/thread_exit1.py  ports/raspberrypi/background.h extmod/re1.5/recursiveloop.c
tools/codeformat.py -v --dry-run tests/basics/int_small.py ports/raspberrypi/common-hal/pulseio/PulseIn.c extmod/virtpin.c tests/thread/thread_exit1.py ports/raspberrypi/background.h extmod/re1.5/recursiveloop.c
uncrustify -c /home/jepler/src/circuitpython/tools/uncrustify.cfg -lC --no-backup extmod/virtpin.c ports/raspberrypi/background.h ports/raspberrypi/common-hal/pulseio/PulseIn.c
black --fast --line-length=99 -v tests/thread/thread_exit1.py
```
recursiveloop and int_small are excluded, while PulseIn, virtpin,
and background are included.

Testing running from a subdirectory (not _specifically_ supported though):
```
(cd ports && python3 ../tools/codeformat.py -v --dry-run raspberrypi/common-hal/pulseio/PulseIn.c ../extmod/virtpin.c)
../tools/codeformat.py -v --dry-run raspberrypi/common-hal/pulseio/PulseIn.c ../extmod/virtpin.c
uncrustify -c /home/jepler/src/circuitpython/tools/uncrustify.cfg -lC --no-backup ../extmod/virtpin.c raspberrypi/common-hal/pulseio/PulseIn.
```

As a side-effect, a bunch more files are re-formatted now. :-P
2021-04-30 10:48:08 -05:00
BiffoBear 2656c84b01 Initial commit. Edited error messages in .c files 2021-02-03 05:49:40 +07:00
Dan Halbert 189f2d5f07 Make requiring I2C pullups be optional 2020-01-09 17:31:50 -05:00
Dan Halbert 85a648224f Check for no pullups on I2C on nrf; give arduino nano 33 ble two I2C devices 2019-11-02 22:47:03 -04:00
Scott Shawcroft 6797ec6ed3
Add support for grayscale displays that are < 8 bit depth.
This also improves Palette so it stores the original RGB888 colors.

Lastly, it adds I2CDisplay as a display bus to talk over I2C. Particularly
useful for the SSD1306.

Fixes #1828. Fixes #1956
2019-07-19 16:06:11 -07:00
Dan Halbert cf545cd477 WIP: fix issues with remaining atmel-samd builds 2019-02-15 09:52:45 -05:00
Dan Halbert 9ea809bef7 add pin claiming to devices 2018-08-31 18:38:05 -04:00
Noralf Trønnes b6822b86ac busio/I2C: Split out samd_i2c_get_sercom()
It will be shared with I2CSlave.
2018-08-16 17:06:40 +02:00
Scott Shawcroft 933add6cd8
Support internationalisation. 2018-08-07 14:58:57 -07:00
Scott Shawcroft 168aa394db
Move pin struct to the peripherals library.
Its slimmed down by removing the qstr and bit packing TCC info.

The trinket m0 build actually grows by 20 bytes. The arduino zero
build shrinks by 188 bytes.
2018-08-02 13:59:05 -07:00
Scott Shawcroft a5e03b76a6 Split out the peripherals library in preparation of sharing with MakeCode. 2018-06-15 16:16:21 -07:00
Scott Shawcroft 717199018b Adapt for feedback and hack around pIRkey size constraint. 2018-06-01 15:08:52 -07:00
Scott Shawcroft fd71e56891 atmel-samd: Re-org helper peripheral files into their own subdirectory.
Ideally in the future they won't depend on ASF4 or MicroPython.
2018-06-01 15:07:31 -07:00
Jerry Needell d6c26942a5 add timeout keyword to I2C - for bitbangio - ignored for busio 2018-05-13 21:54:44 -04:00
Scott Shawcroft cebcec5e63 Check for floating pins by pulling them low briefly before testing their values. 2018-03-26 16:32:16 -07:00
Scott Shawcroft 25ba8ee489 Add an s because grammar. 2018-03-26 15:21:08 -07:00
Scott Shawcroft 37538fc0e7 Fix I2C init hang when the SCL pin is pulled low.
We added a check to make sure the pins are in a high state before
initing the bus. This leads to a friendly error message when someone
forgets to add the pull up resistors to their circuit.
2018-03-26 15:13:52 -07:00
Scott Shawcroft 88aa0e2660 Remove SERCOM pointers from pin data structure because index is
enough.

This saves 380 bytes on the Arduino Zero build. (More pins ==
more savings.)
2018-03-14 11:14:32 -07:00
Dan Halbert 72c911be97 Support SPI flash chips for CIRCUITPY, using non-DMA SPI for now. 2017-11-27 21:00:24 -05:00
Dan Halbert 312444bbd2 non-DMA SPI working; adding this now for testing; will continue with DMA
Also, fixed pin mappings for rev B Metro M4:
swap PA12 and PA13 on SPI 2x3 header
swap A3 and A5

Comment out all frozen modules in CPX again to make room while waiting
for SPI flash.
2017-11-16 19:09:35 -05:00
Dan Halbert 7292984204 Implement busio.I2c.
* Added asf4_conf/samd*/hpl_sercom_config.h
* Adjusted clocks in peripheral_clk_config.h.
* Put some frozen libs back in CPX for testing.
* Implement common-hal I2C
* Add samd*_peripherals.h in parallel with samd*_pins.h for common
  functions and data.
* Store SERCOM index in pins table for convenience.
* Canonicalize some #include guard names in various .h files.

simpler reset of SERCOMs; remove unused routine
2017-11-07 09:59:54 -08:00
Scott Shawcroft 73c15dcf8b Merge commit 'f869d6b2e339c04469c6c9ea3fb2fabd7bbb2d8c' into nrf2_merge
This is prep for merging in the NRF5 pull request.
2017-10-24 22:31:16 -07:00