merged sofirn sp10-pro branch (should have done it months ago, but forgot)

1 files changed, 124 insertions, 0 deletions

diff --git a/hwdef-Sofirn_SP10-Pro.h b/hwdef-Sofirn_SP10-Pro.h
new file mode 100644
index 0000000..bb10f2f
--- /dev/null
+++ b/hwdef-Sofirn_SP10-Pro.h
@@ -0,0 +1,124 @@
+#ifndef HWDEF_SOFIRN_SP10_H
+#define HWDEF_SOFIRN_SP10_H
+
+/* Sofirn SP10 Pro pinout
+
+ATTINY1616 Mapping:
+PB5 : PWM small channel (TCA0 - WO2 Alternate MUX)
+PB3 : eSwitch
+PB0 : PWM big channel (TCA0 - WO0)
+PB4 : Voltage divider (ADC0 - AIN9)
+PA1 : Boost Enable
+
+*/
+
+
+#define LAYOUT_DEFINED
+
+#ifdef ATTINY
+#undef ATTINY
+#endif
+#define ATTINY 1616
+#include <avr/io.h>
+
+#ifndef SWITCH_PIN
+#define SWITCH_PIN     3
+#define SWITCH_PORT    VPORTB.IN
+#define SWITCH_ISC_REG PORTB.PIN3CTRL
+#define SWITCH_VECT    PORTB_PORT_vect
+#define SWITCH_INTFLG  VPORTB.INTFLAGS
+#endif
+
+#define PWM_CHANNELS 2
+#define PWM_BITS 16  // data type needs 16 bits, not 8
+#define PWM_TOP  255 // highest value used in top half of ramp
+#define USE_DYN_PWM  // dynamic frequency and speed
+
+// Small channel
+#ifndef PWM1_PIN
+#define PWM1_PIN PB5
+#define PWM1_LVL TCA0.SINGLE.CMP2BUF  // PB5 is Alternate MUX for TCA Compare 2
+#endif
+
+// Big channel
+#ifndef PWM2_PIN
+#define PWM2_PIN PB0
+#define PWM2_LVL TCA0.SINGLE.CMP0BUF  // PB0 is TCA Compare 0
+#endif
+
+// PWM parameters of both channels are tied together because they share a counter
+#define PWM1_TOP TCA0.SINGLE.PERBUF   // holds the TOP value for for variable-resolution PWM
+// not necessary when double-buffered "BUF" registers are used
+//#define PWM1_CNT TCA0.SINGLE.CNT   // for resetting phase after each TOP adjustment
+
+#define LED_ENABLE_PIN   PIN1_bp
+#define LED_ENABLE_PORT  PORTA_OUT
+
+#define USE_VOLTAGE_DIVIDER       // use a dedicated pin, not VCC, because VCC input is flattened
+#define DUAL_VOLTAGE_FLOOR    20  // for AA/14500 boost drivers, don't indicate low voltage if below this level
+#define DUAL_VOLTAGE_LOW_LOW   7  // the lower voltage range's danger zone 0.7 volts (NiMH)
+#define ADMUX_VOLTAGE_DIVIDER ADC_MUXPOS_AIN9_gc  // which ADC channel to read
+
+// Raw ADC readings at 4.4V and 2.2V
+// calibrate the voltage readout here
+// estimated / calculated values are:
+//   (voltage - D1) * (R2/(R2+R1) * 1024 / 1.1)
+// Resistors are 300,000 and 100,000
+#ifndef ADC_44
+#define ADC_44 1023  // raw value at 4.40V
+#endif
+#ifndef ADC_22
+#define ADC_22 512  // raw value at 2.20V
+#endif
+
+
+
+// with so many pins, doing this all with #ifdefs gets awkward...
+// ... so just hardcode it in each hwdef file instead
+inline void hwdef_setup() {
+
+    // set up the system clock to run at 10 MHz instead of the default 3.33 MHz
+    _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB, CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm );
+
+    VPORTA.DIR = PIN1_bm;  // Boost enable pin
+    VPORTB.DIR = PIN0_bm | PIN5_bm;  // PWM pins as output
+    //VPORTC.DIR = ...;
+
+    // enable pullups on the input pins to reduce power
+    PORTA.PIN0CTRL = PORT_PULLUPEN_bm;
+    //PORTA.PIN1CTRL = PORT_PULLUPEN_bm; // Boost enable pin
+    PORTA.PIN2CTRL = PORT_PULLUPEN_bm;
+    PORTA.PIN3CTRL = PORT_PULLUPEN_bm;
+    PORTA.PIN4CTRL = PORT_PULLUPEN_bm;
+    PORTA.PIN5CTRL = PORT_PULLUPEN_bm;
+    PORTA.PIN6CTRL = PORT_PULLUPEN_bm;
+    PORTA.PIN7CTRL = PORT_PULLUPEN_bm;
+
+    //PORTB.PIN0CTRL = PORT_PULLUPEN_bm; // Big PWM channel
+    PORTB.PIN1CTRL = PORT_PULLUPEN_bm;
+    PORTB.PIN2CTRL = PORT_PULLUPEN_bm;
+    PORTB.PIN3CTRL = PORT_PULLUPEN_bm | PORT_ISC_BOTHEDGES_gc;  // Switch
+    //PORTB.PIN4CTRL = PORT_PULLUPEN_bm; // Voltage divider
+    //PORTB.PIN5CTRL = PORT_PULLUPEN_bm; // Small PWM channel
+
+    PORTC.PIN0CTRL = PORT_PULLUPEN_bm;
+    PORTC.PIN1CTRL = PORT_PULLUPEN_bm;
+    PORTC.PIN2CTRL = PORT_PULLUPEN_bm;
+    PORTC.PIN3CTRL = PORT_PULLUPEN_bm;
+
+    // set up the PWM
+    // https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf
+    // PB0 is TCA0:WO0, use TCA_SINGLE_CMP0EN_bm
+    // PB1 is TCA0:WO1, use TCA_SINGLE_CMP1EN_bm
+    // PB2 is TCA0:WO2, use TCA_SINGLE_CMP2EN_bm
+    // For Fast (Single Slope) PWM use TCA_SINGLE_WGMODE_SINGLESLOPE_gc
+    // For Phase Correct (Dual Slope) PWM use TCA_SINGLE_WGMODE_DSBOTTOM_gc
+    // See the manual for other pins, clocks, configs, portmux, etc
+    PORTMUX.CTRLC = PORTMUX_TCA02_ALTERNATE_gc;  // Use alternate pin for TCA0:WO2
+    TCA0.SINGLE.CTRLB = TCA_SINGLE_CMP0EN_bm | TCA_SINGLE_CMP2EN_bm | TCA_SINGLE_WGMODE_DSBOTTOM_gc;
+    PWM1_TOP = PWM_TOP;
+    TCA0.SINGLE.CTRLA = TCA_SINGLE_CLKSEL_DIV1_gc | TCA_SINGLE_ENABLE_bm;
+}
+
+
+#endif