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circuitpython/ports/atmel-samd
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Jeff Epler b251e78ac5
samd: size-optimize microcontroller temp calc 
Perform most arithmetic with scaled integer values.
For my calibration values
```
const uint32_t NVMCTRL_TEMP_LOG[]={0xfc05511e, 0xcc7ac0f7};
```
the maximum difference between the old and new calculation is 0.50°C.
The difference is smallest (0.13°) at 25.87°C in the old scale.

This reduces mcu_processor_get_temperature from 568 bytes to 348 bytes
(-220 bytes)
2022-10-12 15:44:14 -05:00
..
asf4 @ 84f56af132
update submodules to merge commits
2020-09-14 17:22:30 -05:00
asf4_conf
Merge pull request #4716 from tyomitch/main
2021-05-08 08:47:29 -05:00
bindings/samd
Tweak black_bindings
2022-09-30 11:18:13 -05:00
boards
disable rainbowio on arduino_zero
2022-10-07 10:39:30 -04:00
common-hal
samd: size-optimize microcontroller temp calc
2022-10-12 15:44:14 -05:00
freetouch @ b6859a349e
…
libs
Use libgcc from Arch on SAMD21 (it's smaller.)
2022-08-04 16:33:41 -07:00
modules
run code formatting script
2021-03-15 19:27:36 +05:30
peripherals @ 57133eefeb
update samd-peripherals submodule
2022-07-08 22:47:36 -04:00
sd_mmc
codeformat: Fix filename matching
2021-04-30 10:48:08 -05:00
supervisor
Remove gamepadshift module
2022-05-25 00:48:55 +02:00
tools
Remove busio.OneWire and bitbangio.OneWire
2022-05-24 12:26:33 -04:00
.gitattributes
…
audio_dma.c
fix SAMD21 PDMIn DMA event use
2021-10-19 13:18:14 -04:00
audio_dma.h
fix SAMD21 PDMIn DMA event use
2021-10-19 13:18:14 -04:00
background.c
Remove OSError(0) and old network modules
2021-07-21 17:33:40 -07:00
background.h
supervisor: factor supervisor_background_tasks from sundry ports
2020-07-15 11:49:44 -05:00
eic_handler.c
working samd deep sleep timealarm and pinalarm (sketchy)
2021-09-29 11:44:15 -06:00
eic_handler.h
reworked fake sleep. functional for pin and time
2021-10-09 11:44:10 -06:00
fatfs_port.c
Merge tag 'v1.17' into merge-1.17
2021-10-15 08:20:54 -05:00
ld_defines.c
modifications by pre-commit
2021-03-15 18:11:00 -05:00
Makefile
Use libgcc from Arch on SAMD21 (it's smaller.)
2022-08-04 16:33:41 -07:00
mpconfigport.h
squeeze some specialized builds
2022-06-10 16:24:52 -04:00
mpconfigport.mk
add CIRCUITPY_USB_IDENTIFICATION to turn off on smallest builds
2022-09-20 14:32:38 -04:00
mphalport.c
rework auto-reload delay logic
2022-03-11 14:03:04 -05:00
mphalport.h
modifications by pre-commit
2021-03-15 18:11:00 -05:00
qstrdefsport.h
Merge MicroPython 1.13 into CircuitPython
2021-05-04 18:06:33 -07:00
README.rst
docs: Improve 5.0.x <-> main branch doc linkrot
2020-06-14 11:12:35 -05:00
reset.c
Add some NORETURN attributes
2020-09-28 18:55:56 -05:00
reset.h
Add some NORETURN attributes
2020-09-28 18:55:56 -05:00
samd_peripherals_config.h
Move pin struct to the peripherals library.
2018-08-02 13:59:05 -07:00
shared_timers.c
Reset timers separate from pwmio
2021-08-11 09:58:31 -07:00
shared_timers.h
Reset timers separate from pwmio
2021-08-11 09:58:31 -07:00
timer_handler.c
modifications by pre-commit
2021-03-15 18:11:00 -05:00
timer_handler.h
Reset timers separate from pwmio
2021-08-11 09:58:31 -07:00

README.rst 

SAMD21 and SAMD51
==================

This port supports many development boards that utilize SAMD21 and SAMD51 chips. See
https://circuitpython.org/downloads for all supported boards.


Building
--------

For build instructions see this guide: https://learn.adafruit.com/building-circuitpython/


Debugging
---------

For debugging instructions see this guide: https://learn.adafruit.com/debugging-the-samd21-with-gdb


Port Specific modules
---------------------

.. toctree::
    ../../shared-bindings/samd/index