David Knight
/
PololuLedStrip
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Fork of
PololuLedStrip
by 
David Grayson
Diff: PololuLedStrip.cpp
- Revision:
- 6:9d0530b7dae2
- Parent:
- 4:d3b60bd43811
- Child:
- 7:9a088f042ee0
--- a/PololuLedStrip.cpp Fri Mar 01 00:05:26 2013 +0000
+++ b/PololuLedStrip.cpp Fri Mar 01 00:31:24 2013 +0000
@@ -5,6 +5,8 @@
// TODO: read clock frequency from SystemCoreClock and use that to make this work on different boards.
// calculate the three delays needed and pass them to the assembly. The assembly can implement them with computed jumps.
+uint8_t led_strip_write_delays[3];
+
PololuLedStrip::PololuLedStrip(PinName pinName)
{
gpio_init(&gpio, pinName, PIN_OUTPUT);
@@ -14,6 +16,12 @@
{
__disable_irq(); // Disable interrupts temporarily because we don't want our pulse timing to be messed up.
+ int f = SystemCoreClock/1000000;
+ led_strip_write_delays[0] = 700*f/1000 - 10;
+ led_strip_write_delays[1] = 600*f/1000 - 10;
+ led_strip_write_delays[2] = 1200*f/1000 - 10;
+ led_strip_write_delays[0] = 59;
+
while(count--)
{
led_strip_write_color(colors++, gpio.reg_set, gpio.reg_clr, gpio.mask);