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authorJoshua Diamond <josh@windowoffire.com>2020-06-19 22:59:28 -0400
committerGitHub <noreply@github.com>2020-06-20 12:59:28 +1000
commit18e561b82cdb71bed0162b3ce4083a2d269e5336 (patch)
tree6e016ac5a1e8cbca871b04646e477307dc366280 /drivers/chibios/ws2812.c
parentc7851484457e5ab604962ae7c914b863b8de0cb2 (diff)
Fix incorrect delay when setting WS2812 (and similar) leds (#9302)
* Fix incorrect delay when setting WS2812 (and similar) leds * Add documentation for WS2812_DELAY_MICROSECONDS * Remove improper cast to uint8_t Co-authored-by: Sergey Vlasov <sigprof@gmail.com> * Remove unneeded cast to uint8_t and correct math Co-authored-by: Sergey Vlasov <sigprof@gmail.com> * microseconds -> µs Co-authored-by: Ryan <fauxpark@gmail.com> * Make documentation better match the spec sheet. Co-authored-by: Ryan <fauxpark@gmail.com> * Rename macro to match spec sheet * Further correction to the delay maths for the SPI case. Co-authored-by: Joel Challis <git@zvecr.com> * Move ws2812_common.h to the drivers directory * Revert "Further correction to the delay maths for the SPI case." This reverts commit e61b56a2cfc7dfec9992a7a3af92afa50e5b8ec0. * Remove ws2812_setleds_pin(); consolidate ws2812.h Co-authored-by: Sergey Vlasov <sigprof@gmail.com> Co-authored-by: Ryan <fauxpark@gmail.com> Co-authored-by: Joel Challis <git@zvecr.com>
Diffstat (limited to 'drivers/chibios/ws2812.c')
-rw-r--r--drivers/chibios/ws2812.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/chibios/ws2812.c b/drivers/chibios/ws2812.c
index 2c2d9fb2dc..5917b7f0ec 100644
--- a/drivers/chibios/ws2812.c
+++ b/drivers/chibios/ws2812.c
@@ -51,7 +51,7 @@
// The reset gap can be 6000 ns, but depending on the LED strip it may have to be increased
// to values like 600000 ns. If it is too small, the pixels will show nothing most of the time.
-#define RES 10000 // Width of the low gap between bits to cause a frame to latch
+#define RES (1000 * WS2812_TRST_US) // Width of the low gap between bits to cause a frame to latch
void sendByte(uint8_t byte) {
// WS2812 protocol wants most significant bits first