diff options
Diffstat (limited to 'tk-attiny.h')
| -rw-r--r-- | tk-attiny.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tk-attiny.h b/tk-attiny.h index 49f1195..ae70afd 100644 --- a/tk-attiny.h +++ b/tk-attiny.h @@ -71,6 +71,12 @@ #define DELAY_ZERO_TIME 1020 //#define SWITCH_PORT PINA // set this in hwdef //#define VOLTAGE_ADC_DIDR DIDR0 // set this in hwdef +#elif (ATTINY == 412) || (ATTINY == 416) || (ATTINY == 417) || (ATTINY == 816) || (ATTINY == 817) || (ATTINY == 1616) || (ATTINY == 1617) || (ATTINY == 3216) || (ATTINY == 3217) + #define AVRXMEGA3 + #define F_CPU 5000000UL + #define BOGOMIPS (F_CPU/4000) + #define EEPSIZE 128 + #define DELAY_ZERO_TIME 1020 #else #error Hey, you need to define ATTINY. #endif @@ -138,6 +144,29 @@ clock_div_256 = 8 } clock_div_t; +#elif defined(AVRXMEGA3) // ATTINY816, 817, etc + // this should work, but needs further validation + inline void clock_prescale_set(uint8_t n) { + cli(); + CCP = CCP_IOREG_gc; // temporarily disable clock change protection + CLKCTRL.MCLKCTRLB = n; // Set the prescaler + while (CLKCTRL.MCLKSTATUS & CLKCTRL_SOSC_bm) {} // wait for clock change to finish + sei(); + } + typedef enum + { + // Actual clock is 20 MHz, but assume that 5 MHz is the top speed and work from there + // TODO: measure PWM speed and power use at 1.25/2.5/5/10 MHz, to determine which speeds are optimal + clock_div_1 = (CLKCTRL_PDIV_4X_gc | CLKCTRL_PEN_bm), // 5 MHz + clock_div_2 = (CLKCTRL_PDIV_8X_gc | CLKCTRL_PEN_bm), // 2.5 MHz + clock_div_4 = (CLKCTRL_PDIV_16X_gc | CLKCTRL_PEN_bm), // 1.25 MHz + clock_div_8 = (CLKCTRL_PDIV_32X_gc | CLKCTRL_PEN_bm), // 625 kHz + clock_div_16 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz, max without changing to the 32 kHz ULP + clock_div_32 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz + clock_div_64 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz + clock_div_128 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz + clock_div_256 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm) // 312 kHz + } clock_div_t; #else #error Unable to define MCU macros. #endif |