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d434635822
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279 Commits

Author SHA1 Message Date
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
Dan Halbert
568c04e6af
Merge pull request #650 from tannewt/merge_2x 
Merge in commits from 2.x branch.
 2018-02-27 22:03:52 -05:00
Scott Shawcroft
bf05183158 Merge remote-tracking branch 'adafruit/2.x' into merge_2x 2018-02-27 15:24:16 -08:00
Dan Halbert
5c24023240 use CONF_GCLK_DAC_SRC and refactor a bit 2018-02-27 17:21:03 -05:00
Dan Halbert
4895a9d1d8 Use safe clock freqs for AnalogOut; use DAC REFRESH on SAMD51. 2018-02-27 15:44:27 -05:00
Bryan Siepert
e42209a6b2 fixes timer number assumptions for samd51s for issue #646 2018-02-27 00:42:40 -08:00
Scott Shawcroft
586be2eb22
Merge pull request #643 from dhalbert/3.0_esp8266_uart1 
Add .baudrate support to ESP8266.
 2018-02-26 17:40:13 -08:00
Dan Halbert
cc7acfd491 consistently brand Itsy Bitsy M0 as 'Express' 2018-02-26 17:37:03 -05:00
Dan Halbert
907b4417c0 Add .baudrate support to ESP8266. 
busio.UART on ESP8266 provides a TX-only UART on GPIO2.
Fixed some bugs in the implementation.
 2018-02-24 15:45:15 -05:00
Dan Halbert
957a82b592 add board.RX and .TX pins to metro_m4_express_revb 2018-02-23 09:54:39 -05:00
Kattni
7399a1a5c7
Merge pull request #634 from dhalbert/3.0_UART 
Implement UART for 3.0 + related fixes.
 2018-02-21 23:07:27 -05:00
Dan Halbert
5f101f3535 Add dummy UART implementation to nrf so it builds with UART turned on. Also add OneWire. 2018-02-21 22:53:17 -05:00
Dan Halbert
9b4477e1dc Implement UART for 3.0 + related fixes. 
1. UART: ported to ASF4. Allow rx-only and tx-only. Add .baudrate r/w property.

2. Make NeoPixel timing deterministic by turning off caches during NeoPixel writes.
3. Incorporate asf4 updates:
  a. async USART driver
  b. bringing Atmel START configuration closer to what we use
  c. Clock initialization order now specified by CIRCUITPY_GCLK_INIT_1ST and _LAST.
4. supervisor/port.c: Move commented-out clock-test pin setting to correct location.
 2018-02-21 17:18:49 -05:00
James Devine
9c5a9e3411
Update boards URL in README.rst 
Corrected a (probably) old URL in the read me.
 2018-02-21 16:14:46 +00:00
Scott Shawcroft
d02251f8cd Add a new board for Metro M4 Express Rev B. This is the board 
send to community members for testing.

Also tweaked and commented reset pin list for main Metro M4 Express
which is currently unreleased and is Rev D.
 2018-02-20 12:34:07 -08:00
Scott Shawcroft
653fc8877d Remove breakpoint instruction used for debugging. 2018-02-19 21:38:14 -08:00
Scott Shawcroft
15f626be58 m4 qspi works. m0 compiles 2018-02-19 14:02:04 -08:00
Scott Shawcroft
f20d5723aa Reorganize things. Reading jdec works. 2018-02-19 14:02:04 -08:00
Scott Shawcroft
4710a2adba Compiles for m4. Untested on m0. 
This introduces a new spi_flash_api.h that works for both SPI and
QSPI. The previous spi_flash functions are now called external_flash
to minimize confusion.
 2018-02-19 14:02:04 -08:00
Scott Shawcroft
a2bd772d5c Begin rework to add qspi support. 2018-02-19 14:02:04 -08:00
Dan Halbert
cb39bfcad9
Merge pull request #625 from tannewt/pulseio3 
Re-enable pulseio for SAMD21 and SAMD51
 2018-02-16 14:08:01 -05:00
Scott Shawcroft
a2b18b75d4 Fix loops and comma style. 2018-02-16 10:05:28 -08:00
Scott Shawcroft
eb2b41810a Turn on lto 2018-02-15 16:12:58 -08:00
Scott Shawcroft
538081528d pulsein works on m0 2018-02-15 16:04:39 -08:00
Scott Shawcroft
fcde138ea3 pulsein works on m4 2018-02-15 15:12:58 -08:00
Kevin Townsend
fce0b0858f Removed leftover build option 2018-02-15 21:46:14 +01:00
Kevin Townsend
10497d1db0 Update for style consistency 2018-02-15 21:44:05 +01:00