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145 Commits

Author SHA1 Message Date
Jeff Epler
5eb9f9d060 atmel-samd: Fix rebooting to bootloader 
Commit efbf08266b moved _estack in order to ensure 8-byte alignment
of the stack, but the address of _bootloader_dbl_tap must remain
right at the end of SRAM.

I verified by reading the source that the 4-byte-aligned address is
used for all samd21 / samd51 boards in
adafruit/circuitpython@efbf08266b.  However, I only tested on
trinket_m0.

Closes: #739
 2018-04-03 21:40:10 -05:00
sommersoft
8af98d0dc9 ambiguized directory paths 2018-03-30 22:44:16 +00:00
sommersoft
a5b60647be improved arrangement 2018-03-30 22:26:21 +00:00
sommersoft
7c0be04696 verbiage cleanup 2018-03-30 22:21:35 +00:00
sommersoft
c70acab8b3 updated README; added git submodule info 2018-03-30 22:16:36 +00:00
Scott Shawcroft
676ed4e199
Merge pull request #724 from tannewt/fix_freetouch_submodule 
Remove freetouch files that were accidentally checked in and
 2018-03-28 14:24:32 -07:00
Scott Shawcroft
19b0b414e6 Remove freetouch files that were accidentally checked in and 
readd the submodule.
 2018-03-28 14:04:53 -07:00
Jeff Epler
abec199c19 Enable high-quality float hash 
This appears to have a relatively small impact on flash usage but
fixes some pathological slow behavior putting floats in dicts or sets.

Closes: #704
 2018-03-27 21:56:30 -05:00
Dan Halbert
4c2f729a7a
Merge pull request #713 from jepler/lto-type-diagnostic-bis 
Allow building on gcc 5.4, while preserving ability to build with 7.2
 2018-03-27 09:28:41 -04:00
Kattni
77938db8c8
Merge pull request #719 from tannewt/fix_i2c_hang 
Fix I2C init hang when the SCL pin is pulled low.
 2018-03-26 20:08:14 -04:00
Dan Halbert
4190aa2eed
Merge pull request #715 from jepler/array-operation-restrictions-bis 
Remove 'O', 'P' support in arrays
 2018-03-26 20:01:34 -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
Jeff Epler
355bf8b553 Conditionally compile out nonstandard array/struct typecodes 
.. defaulting to off for circuitpython-supported boards, on for others.

.. fixing up the tests that fail when it is turned off, so that they skip
instead of failing
 2018-03-26 18:13:49 -05:00
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
ea39f4378e
Merge pull request #698 from sommersoft/repl_fix 
Fix 128 Character Max Paste Into REPL
 2018-03-26 13:02:43 -07:00
sommersoft
9bd55cf4c7
minor cleanup 2018-03-26 08:14:37 -05:00
sommersoft
23009fdd63 future-proof for buffer size changes 2018-03-26 06:25:04 +00:00
Dan Halbert
8b6aeb9e19
Merge pull request #702 from jepler/issue689bis 
correct typo in filename
 2018-03-25 23:58:00 -04:00
Jeff Epler
d57397f9c8 Remove an unneeded -Wno-error=lto-type-mismtach 2018-03-25 22:04:15 -05:00
Jeff Epler
c0029e1d97 Don't lose half of the processor's serial number 
Before this change, `microcontroller.cpu.uid` returned values
where the top 4 bits of each byte were zero, because of
an incorrect bitmask used in this function.
 2018-03-25 13:01:04 -05:00
Jeff Epler
d80e54458d correct typo in filename 2018-03-24 10:44:24 -05:00
sommersoft
ef16109c5d updated with requested changes 2018-03-24 00:55:48 +00:00
sommersoft
f237657e5e extended buffer check to usb_cdc_background 2018-03-23 18:41:27 +00:00
Scott Shawcroft
63d826a52a
Update USB PID 2018-03-23 09:34:02 -07:00
sommersoft
ccbe557e30 removed leftover debugging bits 2018-03-23 15:45:30 +00:00
sommersoft
d434635822 add buffer check before triggering new usb read 2018-03-23 15:07:02 +00:00
Scott Shawcroft
fd7dcff4e9 Add Feather M4 Express support. 
* Also fixed detection of SPI flash chip to correct look in the 2+
spots.
* Added support for using QSPI in dual read mode.
 2018-03-23 00:00:13 -07:00
Scott Shawcroft
06b4c83f59 Add reminder to remove Saleae when going fast. 2018-03-22 17:44:44 -07:00
Scott Shawcroft
3bf4d69f67 Update Metro M4 to rev F and make flash reset on start. 2018-03-22 16:42:47 -07:00
Jeff Epler
a7e3c74fed Autocreate files that prevent MacOS indexing of the CIRCUITPYTHON dive 
.. the price of this appears to be about 112 bytes of flash and 12
bytes of RAM, according to the stats printed during the build.

It also uses up 4 directory entries (out of 128), but does not reduce
the number of blocks usable for storing file contents.

These are the same items noted in the Adafruit README for Trinket M0
as preventing MacOS indexing.

Closes: #689
 2018-03-22 08:07:32 -05:00
Scott Shawcroft
9ab39eb2d2
Merge pull request #688 from jepler/atsamd-build-reqs 
Better document build requirements and steps
 2018-03-20 10:03:01 -07:00
Scott Shawcroft
0f90f35606
Merge pull request #685 from jepler/uart-diagnostic 
UART: Fix maybe-uninitialized diagnostic
 2018-03-20 09:59:31 -07:00
Jeff Epler
3f82fe8da9 README.rst: document mpy-cross gotcha 
This was biting me, leading to an odd error later on.
 2018-03-20 07:53:30 -05:00
Jeff Epler
fa491b4c32 README.rst: spell out gcc version requirements 
.. the text was adapted from ports/stm32 and a conversation with
Dan Halbert.
 2018-03-20 07:53:30 -05:00
Jeff Epler
dddfad6594 UART: Fix maybe-uninitialized diagnostic 
The following error occurs when building with gcc 5.4.1 (debian stretch):

common-hal/busio/UART.c:104:83: error: 'sercom_index' may be used uninitialized in this function [-Werror=maybe-uninitialized]
                   sercom_insts[rx->sercom[j].index]->USART.CTRLA.bit.ENABLE == 0) ||

It may be related to the addition of rx-only UARTs; gcc is unable
to infer the intended relationship between have_tx and sercom_index
being set (I am still not entirely confident of it myself)
 2018-03-19 20:40:04 -05:00
Kattni
05e2a7d1ac Added digital pin assignments 2018-03-15 20:28:09 -04:00
jerryneedell
04b4026666
fix dotstar for Gemma_M0 in CP3.0 
Uncomment lines in mpconfigport.h for gemma_m0 to allow dotstar access.  same issue as #514 for trinket_m0
 2018-03-14 21:28:56 -04:00
Dan Halbert
f173d45941
Merge pull request #678 from tannewt/m0_no_timer_fix 
Correct NO_TIMER index value for SAMD21.
 2018-03-14 15:04:39 -04:00
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
Scott Shawcroft
7a3f86d184 Check usb_busy up front in usb background function. 
Waiting to do so risks accidentally queueing another response.

Hopefully fixes #655 but we'll let @jerryneedell confirm.
 2018-03-14 10:32:41 -07:00
Scott Shawcroft
c37ade9aeb Correct NO_TIMER index value for SAMD21. 
We check validity by ensuring it's lower than the total number of
timers. 0 is a terrible number for the NO_TIMER value because its
valid even though it shouldn't be.

Fixes https://github.com/adafruit/Adafruit_CircuitPython_SimpleIO/issues/29
 2018-03-13 12:44:00 -07:00
Dan Halbert
b64d568267
Merge pull request #677 from tannewt/usb_active_read 
Move usb read finish into interrupt.
 2018-03-13 15:16:40 -04:00
Scott Shawcroft
8157248189 Move usb read finish into interrupt. 
Having the `active_read = false` in the background function left
a chance that a new_write occurs before active_read is set to false.

In that case, we'll read the appropriate data rather than write it
and never clear the active write.

Hopefully fixes #655.
 2018-03-13 11:29:29 -07:00
vesperk38
945f2f5aa1
line 172 has a typo correct 2MB to 4MB 2018-03-13 13:42:29 -04:00
Radomir Dopieralski
81ab2526e4 gamepad: Enable the gamepad module for express boards in 3.x 2018-03-11 13:39:54 +01:00
Scott Shawcroft
e7fc0b6aa7 Use DMA for long SPI transactions including those to the SPI Flash. 
QSPI is not currently working so its commented out.

This is progress on #652.
 2018-03-09 12:45:46 -08:00
Bryan Siepert
942b7ffbe0 fixes hardware dotstar support for 3.0 and addresses issue #514 2018-03-08 20:39:47 -08:00
Scott Shawcroft
01aceaae50 Support all boards and remove erase and page sizes because they never change. 2018-03-01 12:45:12 -08:00
Scott Shawcroft
2ab923862b Structify flash device definitions. 2018-02-28 19:15:54 -08:00