Turns out everything we were doing with the SPI clock doubling stuff on the teensy 3/3.1 was correct. 12Mhz is a more realistic driving speed for the teensy 3/3.1 for LPD8806 than 20Mhz.

1 files changed, 2 insertions, 2 deletions

diff --git a/chipsets.h b/chipsets.h
index e9a91132..d60dbe72 100644
--- a/chipsets.h
+++ b/chipsets.h
@@ -10,7 +10,7 @@
 //
 //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB,  uint8_t SPI_SPEED = DATA_RATE_MHZ(20) >
+template <uint8_t DATA_PIN, uint8_t CLOCK_PIN, EOrder RGB_ORDER = RGB,  uint8_t SPI_SPEED = DATA_RATE_MHZ(12) >
 class LPD8806Controller : public CLEDController {
 	typedef SPIOutput<DATA_PIN, CLOCK_PIN, SPI_SPEED> SPI;
 
@@ -331,7 +331,7 @@ public:
 	}
 
 protected:
-	
+
 	virtual void showColor(const struct CRGB & data, int nLeds, CRGB scale) {
 		mSPI.template writePixels<FLAG_START_BIT, DATA_NOP, RGB_ORDER>(PixelController<RGB_ORDER>(data, nLeds, scale, getDither()));
 		writeHeader();