merged K9.3-tintramp / D4Sv2-tintramp branch

(which also changed the way tint ramping is implemented,
 to make things generally cleaner and more flexible)

1 files changed, 55 insertions, 0 deletions

diff --git a/hwdef-BLF_LT1.h b/hwdef-BLF_LT1.h
new file mode 100644
index 0000000..d0c2821
--- /dev/null
+++ b/hwdef-BLF_LT1.h
@@ -0,0 +1,55 @@
+#ifndef HWDEF_BLF_LT1_H
+#define HWDEF_BLF_LT1_H
+
+/* BLF LT1 driver layout
+ *           ----
+ *   Reset -|1  8|- VCC
+ * eswitch -|2  7|- (unused)
+ * aux LED -|3  6|- PWM (5000K)
+ *     GND -|4  5|- PWM (3000K)
+ *           ----
+ */
+
+#define ATTINY 85
+#include <avr/io.h>
+
+#define PWM_CHANNELS 1  // 1 virtual channel (1 for main LEDs + 1 for 2nd LEDs)
+#define PWM_BITS 8      // 0 to 255 at 15.6 kHz
+#define PWM_TOP 255
+
+// dynamic PWM with tint ramping (not supported on attiny85)
+//#define USE_DYN_PWM     // dynamic frequency and speed
+//#define PWM1_CNT TCNT0  // for dynamic PWM, reset phase
+
+// usually PWM1_LVL would be a hardware register, but we need to abstract
+// it out to a soft brightness value, in order to handle tint ramping
+// (this allows smooth thermal regulation to work, and makes things
+//  otherwise simpler and easier)
+uint8_t PWM1_LVL;
+
+#define PWM1_PIN PB0        // pin 5, warm tint PWM
+#define TINT1_LVL OCR0A     // OCR0A is the output compare register for PB0
+
+#define PWM2_PIN PB1        // pin 6, cold tint PWM
+#define TINT2_LVL OCR0B     // OCR0B is the output compare register for PB1
+
+
+#define AUXLED_PIN   PB4    // pin 3
+
+#define SWITCH_PIN   PB3    // pin 2
+#define SWITCH_PCINT PCINT3 // pin 2 pin change interrupt
+
+#define ADC_PRSCL   0x07    // clk/128
+
+// average drop across diode on this hardware
+#ifndef VOLTAGE_FUDGE_FACTOR
+#define VOLTAGE_FUDGE_FACTOR 7  // add 0.35V
+#endif
+
+#define FAST 0xA3           // fast PWM both channels
+#define PHASE 0xA1          // phase-correct PWM both channels
+
+#define LAYOUT_DEFINED
+
+
+#endif