Update README file in WS2812 ledstrip example according to driver changes.

diff --git a/ledstrip/README b/ledstrip/README
index 14a0a59..2a98c2e 100644 (file)
--- a/ledstrip/README
+++ b/ledstrip/README
@@ -26,8 +26,8 @@ WS2812 external driver development is based on data found in the WS2812.pdf
 datasheet provided by Adafruit : https://www.adafruit.com/datasheets/WS2812.pdf
 
 
-The external driver (extdrv/ws2812.[ch]) provides an internal buffer which size
-is defined in extdrv/ws2812.h (NB_LEDS)
+The external driver (extdrv/ws2812.[ch]) requires an external buffer which size
+must be (nb_leds * 3).
 This buffer is filled using ws2812_set_pixel(), and the led values are sent to
 the led strip using ws2812_send_frame().
 
@@ -38,6 +38,8 @@ Leds data is generated by the filling functions either from pre-defined
 patterns or using ADC samples or UART received data.
 Not all functions have been implemented yet.
 
-TODO : Implement other functions / modes.
+TODO :
+ - Implement other functions / modes
+ - Test ws2812fx functions from extdrv/ws2812fx.c