Ayke van Laethem 5a02fe068b apa102: use 4-byte buffer to improve speed ...

Instead of sending the APA102 data byte by byte, it's more efficient to
send multiple bytes at once (especially when the SPI peripheral uses
DMA). This requires the apa102.Device object to be a pointer receiver to
avoid excessive heap allocations.

This commit also just happens to work around a hardware bug on the
nrf52832:
https://infocenter.nordicsemi.com/index.jsp?topic=%2Ferrata_nRF52832_Rev2%2FERR%2FnRF52832%2FRev2%2Flatest%2Fanomaly_832_58.html&anchor=anomaly_832_58

2021-05-30 22:39:50 +02:00

..

apa102.go

apa102: use 4-byte buffer to improve speed

2021-05-30 22:39:50 +02:00

softspi.go

all: changeover to eliminate all direct use of master/slave terminology

2020-07-30 12:03:09 +02:00