suspect-devices/circuitpython/esp8266/modonewire.c, branch mainCircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=main2017-06-22T06:06:00+00:00extmod: Move modonewire.c from esp8266 to extmod directory.2017-06-22T06:06:00+00:00Damien Georgedamien.p.george@gmail.com2017-06-22T06:06:00+00:00urn:sha1:6cc4da4cb82438829e090ffbf43450ddfd3da392
It's now generic enough to be used by any port.
esp8266/modonewire: Make timings static and remove onewire.timings func.2017-06-22T05:53:13+00:00Damien Georgedamien.p.george@gmail.com2017-06-22T05:53:13+00:00urn:sha1:0c13b95cdc70115c588ea515a459f8d4ba3844bc
The 1-wire bus is defined with fixed timings so there should be no need to
change them dynamically at runtime. Making the timings fixed saves about
270 bytes of code and 20 bytes of RAM.
esp8266/modonewire: Move low-level 1-wire bus code to modonewire.c.2017-06-22T05:47:56+00:00Damien Georgedamien.p.george@gmail.com2017-06-22T05:40:04+00:00urn:sha1:68c640d7cbebd4cc3bf22af3871ca2c9d74bb292
The reason it was separated is so that the low-level code could be put in
iRAM, for timing reasons. But:
1. Tests show that it's not necessary to have this code in iRAM for it to
function correctly, and taking it out of iRAM reclaims some of that precious
resource. Furthermore, even though these functions were in iRAM there were
some functions that it called (eg pin get/set functions) which were not in
iRAM, so partially defeated the purpose of putting the 1-wire code in iRAM.
2. It's easier to reuse this 1-wire code in other ports if it's in a single
file.
3. If it turns out that certain code does need to be in iRAM then one can
use the MP_FASTCODE macro to do that.
esp8266: Make onewire module and support code usable by other ports.2017-06-20T09:11:46+00:00Damien Georgedamien.p.george@gmail.com2017-06-20T09:11:46+00:00urn:sha1:c06aa5be00139dcb5fc8a47da5e38734355981e2esp8266: Rename "machine" module implementation to use contemporary naming.2016-11-05T22:30:19+00:00Paul Sokolovskypfalcon@users.sourceforge.net2016-11-05T22:30:19+00:00urn:sha1:8bc3fc20feca9ebe9e9972aeb6b68a81d792c5df
Previously they used historical "pyb" affix causing confusion and
inconsistency (there's no "pyb" module in modern ports; but people
took esp8266 port as an example, and "pyb" naming kept proliferating,
while other people complained that source structure is not clear).
all: Remove 'name' member from mp_obj_module_t struct.2016-09-21T14:23:16+00:00Damien Georgedamien.p.george@gmail.com2016-09-21T00:52:53+00:00urn:sha1:93c4a6a3f70e389b466fbc7a4f1ad2e1df87c93f
One can instead lookup __name__ in the modules dict to get the value.
esp8266: Separate 1-wire timing funcs from Python module to save iRAM.2016-04-14T11:44:26+00:00Damien Georgedamien.p.george@gmail.com2016-04-14T11:33:54+00:00urn:sha1:df3b1741b6f6aebece2d6ae7d4800baf9c163e36
esponewire.c contains low-level timing-critical functions that go in
iRAM. modonewire.c contains Python wrapper code.
esp8266: Add onewire helper functions as C module.2016-03-24T15:33:42+00:00Damien Georgedamien.p.george@gmail.com2015-12-29T00:20:34+00:00urn:sha1:78d0dde5622aa9ab55b7dfc0dc26407734580780
Includes functions to read and write bits and bytes.