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15 Commits

Author SHA1 Message Date
Scott Shawcroft 6839fff313 Move to ASF4 and introduce SAMD51 support. (#258) 
* atmel-samd: Remove ASF3. This will break builds.

* atmel-samd: Add ASF4 for the SAMD21 and SAMD51.

* Introduce the supervisor concept to facilitate porting.

The supervisor is the code which runs individual MicroPython VMs. By
splitting it out we make it more consistent and easier to find.

This also adds very basic SAMD21 and SAMD51 support using the
supervisor. Only the REPL currently works.

This begins the work for #178.
 2017-09-22 21:05:51 -04:00
Dan Halbert c679c80c71 Modernize module and class static dicts; update freetouch 2017-08-27 15:02:50 -04:00
Scott Shawcroft 266be30777 atmel-samd: Introduce a nvm module for non-volatile byte-level memory access. (#203) 
* atmel-samd: Introduce a nvm module for non-volatile byte-level memory access.

This allows for persisting small configuration values even when the file system
is read-only from CircuitPython.

Fixes #160

* Review feedback:
* Add tests.
* Fix non-zero index.
* Fix len()
 2017-08-25 16:00:27 -04:00
Scott Shawcroft 13cb4aa89d atmel-samd: Add support for a second flash chip so either may be used. 2017-08-03 13:44:31 -07:00
Scott Shawcroft 3660023046 atmel-samd: Update README and add pinout tables that map MCU names 
to names in the board module and explain pin capabilities.

Fixes #149
 2017-07-13 16:05:24 -07:00
Scott Shawcroft 1e04e8ea1c atmel-samd: Reboot to bootloader when a 1200 baud serial connection is 
closed. This is how Arduino triggers the bootloader.
 2017-07-12 11:58:22 -07:00
Scott Shawcroft a715bf6bac atmel-samd: Introduce board reset mechanic used on CircuitPlayground 
Express to ensure the Neopixels are off after reloads.
 2017-06-16 15:40:15 -07:00
Scott Shawcroft 3e23464b1e atmel-samd: Add user initiated safe mode and rework board.c for 
board specific functionality.

Fixes #155
 2017-06-16 14:55:53 -07:00
Scott Shawcroft b5f50fadf9 atmel-samd: Change Metro PID to 0x8014 so it doesn't conflict with Arduino's PID. 2017-06-06 16:18:34 -07:00
robomike 517590a58a atmel-samd:renamed spi flash to confuse with the actual spi flash 2017-05-23 14:09:28 -04:00
Scott Shawcroft 7672bf7736 atmel-samd: Rename auto-reset to auto-reload to reduce confusion with physical reset buttons. 2017-05-12 16:45:38 -07:00
Scott Shawcroft e1a6f6d584 atmel-samd: Rework SPI flash defines for clarity. 
Also add sector protection support for the SAMD Xplained board.
 2017-05-12 14:47:39 -07:00
Scott Shawcroft 6512ccf32e atmel-samd: Use DMA for user SPI. 
Also replace use of PINMUX_DEFAULT with PINMUX_UNUSED to prevent any
accidental pin changes. This caused user SPI to break internal SPI
flash on the Feather M0 Express.

Fixes #100
 2017-05-03 10:50:29 -07:00
Scott Shawcroft 24a5752f94 atmel-samd: Use DMA for SPI flash block transfers. 
Fixes #99
 2017-05-02 15:25:06 -07:00
Scott Shawcroft 4ad22144b0 atmel-samd: Rename metro M0 Express and add NEOPIXEL pin. 2017-05-01 11:29:51 -07:00