fix neopixel didn't turn off after dfu cdc

2018-12-21 14:48:04 +07:00
parent e66ee2af6d
commit 25f6d395bc
1 changed files with 3 additions and 2 deletions
--- a/src/boards.c
+++ b/src/boards.c
@@ -347,9 +347,10 @@ void neopixel_init(void)
 void neopixel_teardown(void)
 {
  uint8_t grb[3] = { 0, 0, 0 };
-  neopixel_write(grb);

-  NRFX_DELAY_US(100);
+  NRFX_DELAY_US(100);  // wait for previous write is complete
+  neopixel_write(grb);
+  NRFX_DELAY_US(100);  // wait for this write

  pwm_teardown(NRF_PWM2);
 }