djsundog/circuitpython
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4b41fdb586
circuitpython/shared-bindings
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Jeff Epler 4b41fdb586
Fast(ish) special purpose bitbang spi over i2c 
with the i2c bus operating at 400kHz this achieves a 4.8kHz SPI clock
rate which could be worse.

It accepts the same style of init sequence as displayio.

tested by scoping the pins on the espressif lcd dev kit with a dummy init sequence:
```python
dotclockframebuffer.ioexpander_send_init_sequence(
    bus=bus,
    i2c_address=expander_addr,
    gpio_address=1,
    gpio_data_len=1,
    gpio_data=0xff,
    cs_bit=1,
    mosi_bit=3,
    clk_bit=2,
    init_sequence=init_sequence)
```
2023-09-14 14:42:48 -05:00
..
__future__ wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
_bleio pre-commit fixes 2023-08-14 00:59:22 -04:00
_eve wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
_pew wip; remove long-lived functionality; remove PR#2614 2023-08-08 20:41:17 -04:00
_pixelmap wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
_stage wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
adafruit_bus_device wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
adafruit_pixelbuf wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
aesio merge latest adafruit/main 2023-08-13 19:43:54 -04:00
alarm wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
analogbufio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
analogio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
atexit wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
audiobusio Merge remote-tracking branch 'adafruit/main' into i2s_mclk 2023-08-24 15:07:14 -07:00
audiocore wip; fix more m_malloc and gc_alloc 2023-08-11 00:30:34 -04:00
audioio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
audiomixer wip; fix qstr processing 2023-08-10 20:06:32 -04:00
audiomp3 wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
audiopwmio wip; remove long-lived functionality; remove PR#2614 2023-08-08 20:41:17 -04:00
bitbangio pre-commit fixes 2023-08-14 00:59:22 -04:00
bitmaptools Merge remote-tracking branch 'adafruit/main' into merge-micropython-v1.19.1 2023-08-18 13:29:39 -04:00
bitops wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
board wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
busio Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
camera wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
canio Merge pull request #8298 from jepler/canio-doc-mcp2515 2023-08-22 09:48:09 -05:00
countio merge latest adafruit/main 2023-08-13 19:43:54 -04:00
digitalio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
displayio Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
dotclockframebuffer Fast(ish) special purpose bitbang spi over i2c 2023-09-14 14:42:48 -05:00
dualbank wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
floppyio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
fontio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
framebufferio Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
frequencyio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
getpass wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
gifio merge latest adafruit/main 2023-08-13 19:43:54 -04:00
gnss wip; fix generators; typos 2023-08-13 00:30:59 -04:00
hashlib wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
i2ctarget wip; fix qstr processing 2023-08-10 20:06:32 -04:00
imagecapture wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
ipaddress wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
is31fl3741 wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
keypad Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
math wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
mdns merge latest adafruit/main 2023-08-13 19:43:54 -04:00
memorymap Review changes 2023-09-07 16:45:45 -07:00
memorymonitor pre-commit fixes 2023-08-14 00:59:22 -04:00
microcontroller wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
msgpack wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
neopixel_write wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
nvm wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
onewireio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
os Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
paralleldisplay merge latest adafruit/main 2023-08-13 19:43:54 -04:00
ps2io wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
pulseio wip; remove long-lived functionality; remove PR#2614 2023-08-08 20:41:17 -04:00
pwmio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
qrio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
rainbowio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
random wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
rgbmatrix Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 14:10:29 -05:00
rotaryio wip; remove long-lived functionality; remove PR#2614 2023-08-08 20:41:17 -04:00
rtc wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
sdcardio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
sdioio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
sharpdisplay wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
socketpool Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
ssl merge latest adafruit/main 2023-08-13 19:43:54 -04:00
storage wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
struct Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
supervisor wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
synthio merge latest adafruit/main 2023-08-13 19:43:54 -04:00
terminalio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
time wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
touchio wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
traceback fixes to unix port support; thanks @jepler 2023-08-14 09:51:52 -04:00
uheap wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
usb pre-commit fixes 2023-08-14 00:59:22 -04:00
usb_cdc wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
usb_hid pre-commit fixes 2023-08-14 00:59:22 -04:00
usb_host merge latest adafruit/main 2023-08-13 19:43:54 -04:00
usb_midi wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
ustack wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
vectorio Merge remote-tracking branch 'origin/8.2.x' into merge-82x 2023-08-22 08:49:16 -05:00
watchdog wip: continuing compilation fixes; mp_obj_alloc everywhere 2023-08-07 20:45:57 -04:00
wifi Add new picow doc notes 2023-08-23 22:12:19 +03:00
zlib Update wrappers to use new gzip changes 2023-08-28 21:59:00 -07:00
help.rst Apply a Sphinx transform to make the core module docs look better 2020-08-07 00:01:31 +09:00
index.rst docs: Improve 5.0.x <-> main branch doc linkrot 2020-06-14 11:12:35 -05:00
support_matrix.rst Use the ".. jinja" tag to render support_matrix template 2023-08-21 21:34:14 -05:00
util.c synthio: Add LFOs 2023-05-15 21:15:39 -05:00
util.h synthio: Add LFOs 2023-05-15 21:15:39 -05:00