suspect-devices/circuitpython/supervisor/shared/usb/usb.c, branch 6.0.xCircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=6.0.x2020-10-31T02:25:50+00:00improve USB CDC disconnect/reconnect checking2020-10-31T02:25:50+00:00Dan Halberthalbert@halwitz.org2020-10-31T02:16:12+00:00urn:sha1:345d84ffde527b16f50c203f7b6a718886be34f6supervisor: Improve serial connection detection2020-09-17T23:32:06+00:00Jeff Eplerjepler@gmail.com2020-09-03T18:36:15+00:00urn:sha1:28043c94b5ea5f3cce11fa57afa9f3f0141b8dce
These changes remove the caveat from supervisor.runtime.serial_connected.
It appears that _tud_cdc_connected() only tracks explicit changes to the
"DTR" bit, which leads to disconnects not being registered.
Instead:
* when line state is changed explicitly, track the dtr value in
_serial_connected
* when the USB bus is suspended, set _serial_connected to False
Testing performed (using sam e54 xplained): Run a program to show
the state of `serial_connected` on the LED:
```
import digitalio
import supervisor
import board
led = digitalio.DigitalInOut(board.LED)
while True:
led.switch_to_output(not supervisor.runtime.serial_connected)
```
Try all the following:
* open, close serial terminal program
- LED status tracks whether terminal is open
* turn on/off data lines using the switchable charge-only cable
- LED turns off when switch is in "charger" position
- LED turns back on when switch is in Data position and terminal is
opened (but doesn't turn back on just because switch position is
changed)
Merge pull request #3223 from dhalbert/unmount-before-reset2020-07-29T17:47:24+00:00Scott Shawcroftscott@adafruit.com2020-07-29T17:47:24+00:00urn:sha1:b76d37f24a3f1d8e26e080ed9b88e05af6dfae5c
storage.erase_filesystem(): disconnect from USB and wait 1 second before resettingstorage.erase_filesystem(): unmount and wait 1 second before resetting2020-07-28T21:52:56+00:00Dan Halberthalbert@halwitz.org2020-07-28T21:52:56+00:00urn:sha1:65c22aa4347abc145493f44a4bc8d91a4f200860supervisor: rename some locals for clarity2020-07-20T13:45:31+00:00Jeff Eplerjepler@gmail.com2020-07-20T13:45:31+00:00urn:sha1:9fd10322fedc4a7736118fdb6cb1480ad8da94f1
It's perfectly OK for these variables with static linkage to have the
same name, but it's inconvenient for humans like me.
supervisor: factor out, Handle USB via background callback2020-07-15T16:49:44+00:00Jeff Eplerjepler@gmail.com2020-07-07T16:14:43+00:00urn:sha1:6160d11c5a04f60e54ce977fd73fafa5ba858aa0Initial ESP32S2 port.2020-05-15T22:36:16+00:00Scott Shawcroftscott@tannewt.org2020-04-17T23:23:28+00:00urn:sha1:6aaab005c5f3a781fec229640c74bf44a601fc97
Basic blinky works but doesn't check pins.
First try at lowering the power consumption2020-03-13T18:12:30+00:00Scott Shawcroftscott@tannewt.org2020-03-06T01:14:54+00:00urn:sha1:6f60afe8c521011d1a2d34a2632295b483a8cee3Improve USB eject by resetting on replug2019-12-18T03:01:03+00:00Scott Shawcroftscott@tannewt.org2019-12-18T03:01:03+00:00urn:sha1:561fdfb279c45f7a9ff69a2b2e71ac272cb6aaefcleanup adapter.address; add uniquish suffix to BLE device name2019-07-31T04:30:24+00:00Dan Halberthalbert@halwitz.org2019-07-31T04:30:24+00:00urn:sha1:91d791afd091ba38bb61689e88a7fc03b9679e00