circuitpython

Author	SHA1	Message	Date
Lucian Copeland	93cffaa87e	Fix pin macros typo, add extra flash protection	2020-06-05 16:43:08 -04:00
Lucian Copeland	b5b9a56918	Update teensy 4.0/4.1 pin protections	2020-06-02 18:05:59 -04:00
Lucian Copeland	99538c2414	Implement pin claiming, pin reset, and pin protections	2020-05-15 15:16:51 -04:00
Scott Shawcroft	085242bf5c	Use new USB PIDs that aren't used yet.	2020-01-21 18:45:00 -08:00
Scott Shawcroft	9d5742ebd1	Fix start on power up by providing Reset_Handler ourselves. On power up the FlexRAM banks are in an unknown config so we can't rely on the stack until after we configure FlexRAM.	2020-01-18 11:54:01 -08:00
Scott Shawcroft	9f4ea2122a	teensy fixes	2020-01-17 18:35:09 -08:00
Scott Shawcroft	7d8dac9211	Refine iMX RT memory layout and add three boards Introduces a way to place CircuitPython code and data into tightly coupled memory (TCM) which is accessible by the CPU in a single cycle. It also frees up room in the corresponding cache for intermittent data. Loading from external flash is slow! The data cache is also now enabled. Adds support for the iMX RT 1021 chip. Adds three new boards: * iMX RT 1020 EVK * iMX RT 1060 EVK * Teensy 4.0 Related to #2492, #2472 and #2477. Fixes #2475.	2020-01-17 17:36:08 -08:00