5f4806f0f9
ws2812: work-arounds to allow Digispark to control WS2812 LEDs
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Signed-off-by: Ron Evans <ron@hybridgroup.com >
2020-01-30 14:24:39 +01:00
f4bccd1fed
Added nrf52840 tag to ws2812
2020-01-06 07:37:21 +01:00
7b56e61d52
ws2812: add support for simulation
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Call a special __tinygo_ws2812_write_byte function to send a single
byte.
2019-12-14 22:16:41 +01:00
514b436889
ws2812: fix "invalid symbol redefinition" error
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Named local labels shouldn't be used in LLVM because they might get
duplicated resulting in multiple symbol definitions and a compiler
error. Instead, use numeric labels.
2019-12-14 22:11:10 +01:00
7233452819
Added Feather M0 and Trinket M0 to build tags for WS2812
2019-12-12 14:28:21 +01:00
f822da51fe
Add support for Cortex-M4 120MHz
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This adjusts the timing for 120MHz as seen on atsamd51 boards. The
timing was kept as close as possible to the Cortex-M4 64MHz logic in
ws2812_m4_64m.go.
Tested: This works on ItsyBitsy-M4
2019-12-06 11:33:55 +01:00
c62d7db35d
Fix number in comment
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assembly comment was counting the # of nops.
2019-12-06 11:33:55 +01:00
d80f619c9f
ws2812: fix timings for the nrf51
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The timings needed to be changed slightly for ws2811 chips which are
slightly slower.
2019-08-19 10:55:00 +02:00
c91888a099
ws2812: Add build tag for Arduino Nano33 IoT
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Uses `arduino_nano33` to handle only this board. Other boards with
the same chip will need a separate tag.
2019-08-15 17:38:27 +02:00
00a9b9db77
ws2812: better support the nrf52832
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This has cost me _hours_ to find. There are many clones of the ws2812
and they have slightly different timing characteristics. Some don't work
so well when you get close to the minimum T1H time: a 1-bit may be
interpreted as a 0-bit.
2019-06-03 19:25:24 +02:00
c09f0a8075
all: switch to using custom domain for all drivers
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Signed-off-by: Ron Evans <ron@hybridgroup.com >
2019-05-29 13:33:50 +02:00
3f946868e1
all: refactor all current drivers to use new machine.Pin interface
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Signed-off-by: Ron Evans <ron@hybridgroup.com >
2019-05-26 21:46:33 +02:00
7116778235
ws2812: add support for M0 at 48MHz: most SAMD21 boards
2019-02-24 23:10:10 +01:00
4ff437e5d4
ws2812: add nrf52 support, update timings for m0 and avr
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This commit adds support for the nrf52, which is a Cortex-M4 running at
64MHz.
While implementing this, I discovered that the timings for AVR/16MHz and
Cortex-M0 at 16MHz weren't quite right. They do work, but were slightly
out of spec. So I fixed this as well.
2019-02-22 07:10:22 +01:00
4c21e79d0e
ws2812: switch to different color format
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Use image/color.RGBA to represent RGB colors. This is more standard.
2018-12-22 16:37:36 +01:00
0d692cfd0a
ws2812: provide proper file-like interface in Device
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* Return len and errors in the Write method, to implement io.Writer.
* Return a nil error in WriteByte, for compatibility with bufio.
2018-12-22 16:35:27 +01:00
aef8d42d42
ws2812: add support for the Arduino
2018-11-20 21:07:04 +01:00
16a5f82d44
ws2812: rename WS2812 to Device
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This is more consistent with the other drivers.
2018-11-16 14:55:00 +01:00
c23954059f
ws2812: improve documentation
2018-11-16 12:21:17 +01:00
1f27817061
Initial commit
2018-10-15 20:47:33 +02:00
Ron Evans
BCG
Ayke van Laethem
Jonathan Basseri
Brad Erickson