Refactored blf-a6 a bunch to export code to includes and make attiny portability a bit better.

Moved MCU hardware options and pin layout to tk-attiny.h.
Moved voltage and OTC hardcoded values to tk-calibration.h.
Moved delay functions to tk-delay.h, and made it use BOGOMIPS instead of DELAY_TWEAK.
Moved voltage ADC and most of the battcheck code to tk-voltage.h.
Changed EEPLEN to EEPSIZE.
Made 1.1V reference symbol consistent across MCUs to avoid repeated #if/#else clauses.

1 files changed, 90 insertions, 0 deletions

diff --git a/tk-attiny.h b/tk-attiny.h
new file mode 100644
index 0000000..003e915
--- /dev/null
+++ b/tk-attiny.h
@@ -0,0 +1,90 @@
+#ifndef TK_ATTINY_H
+#define TK_ATTINY_H
+/*
+ * Attiny portability header.
+ * This helps abstract away the differences between various attiny MCUs.
+ *
+ * Copyright (C) 2015 Selene ToyKeeper
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// Choose your MCU here, or in the main .c file, or in the build script
+//#define ATTINY 13
+//#define ATTINY 25
+
+/******************** hardware-specific values **************************/
+#if (ATTINY == 13)
+    #define F_CPU 4800000UL
+    #define EEPSIZE 64
+    #define V_REF REFS0
+    #define BOGOMIPS 950
+#elif (ATTINY == 25)
+    #define F_CPU 8000000UL
+    #define EEPSIZE 128
+    #define V_REF REFS1
+    #define BOGOMIPS 2000
+#else
+    Hey, you need to define ATTINY.
+#endif
+
+
+/******************** I/O pin and register layout ************************/
+#ifdef FET_7135_LAYOUT
+/*
+ *           ----
+ *         -|1  8|- VCC
+ *     OTC -|2  7|- Voltage ADC
+ *  Star 3 -|3  6|- PWM (FET)
+ *     GND -|4  5|- PWM (1x7135)
+ *           ----
+ */
+
+#define STAR2_PIN   PB0     // If this pin isn't used for ALT_PWM
+#define STAR3_PIN   PB4     // pin 3
+
+#define CAP_PIN     PB3     // pin 2, OTC
+#define CAP_CHANNEL 0x03    // MUX 03 corresponds with PB3 (Star 4)
+#define CAP_DIDR    ADC3D   // Digital input disable bit corresponding with PB3
+
+#define PWM_PIN     PB1     // pin 6, FET PWM
+#define PWM_LVL     OCR0B   // OCR0B is the output compare register for PB1
+#define ALT_PWM_PIN PB0     // pin 5, 1x7135 PWM
+#define ALT_PWM_LVL OCR0A   // OCR0A is the output compare register for PB0
+
+#define VOLTAGE_PIN PB2     // pin 7, voltage ADC
+#define ADC_CHANNEL 0x01    // MUX 01 corresponds with PB2
+#define ADC_DIDR    ADC1D   // Digital input disable bit corresponding with PB2
+#define ADC_PRSCL   0x06    // clk/64
+
+#endif  // FET_7135_LAYOUT
+
+#ifdef FERRERO_ROCHER_LAYOUT
+/*
+ *            ----
+ *          -|1  8|- VCC
+ * E-switch -|2  7|- Voltage ADC
+ *  Red LED -|3  6|- PWM
+ *      GND -|4  5|- Green LED
+ *            ----
+ */
+// TODO: fill in this section, update Ferrero_Rocher code to use it.
+#endif  // FERRERO_ROCHER_LAYOUT
+
+#ifndef PWM_LVL
+    Hey, you need to define an I/O pin layout.
+#endif
+
+#endif  // TK_ATTINY_H