diff options
Diffstat (limited to 'libmaple/timers.h')
| -rw-r--r-- | libmaple/timers.h | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/libmaple/timers.h b/libmaple/timers.h index 448a533..cbdf088 100644 --- a/libmaple/timers.h +++ b/libmaple/timers.h @@ -1,4 +1,4 @@ -/* ***************************************************************************** +/****************************************************************************** * The MIT License * * Copyright (c) 2010 Perry Hung. @@ -20,12 +20,12 @@ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. - * ****************************************************************************/ + *****************************************************************************/ /** - * @file timers.h + * @file timers.h * - * @brief Timer prototypes and various definitions + * @brief Timer prototypes and various definitions */ /* Note to self: @@ -39,7 +39,7 @@ * See stm32 manual, 77/995 * * hence, 72 mhz timers - * */ + */ /* Maple Timer channels: * Timer Maple Pin STM32 Pin Type @@ -75,7 +75,6 @@ * pinMode(digitalPin, PWM); * pwmWrite(digitalPin) */ - #ifndef _TIMERS_H_ #define _TIMERS_H_ @@ -89,15 +88,14 @@ typedef volatile uint32* TimerCCR; #define TIMER2_BASE 0x40000000 #define TIMER3_BASE 0x40000400 #define TIMER4_BASE 0x40000800 -#define TIMER5_BASE 0x40000C00 // High-density devices only (Maple Native) -#define TIMER6_BASE 0x40001000 // High-density devices only (Maple Native) -#define TIMER7_BASE 0x40001400 // High-density devices only (Maple Native) -#define TIMER8_BASE 0x40013400 // High-density devices only (Maple Native) +#define TIMER5_BASE 0x40000C00 // High-density devices only +#define TIMER6_BASE 0x40001000 // High-density devices only +#define TIMER7_BASE 0x40001400 // High-density devices only +#define TIMER8_BASE 0x40013400 // High-density devices only -#define ARPE BIT(7) // Auto-reload preload enable +#define ARPE BIT(7) // Auto-reload preload enable #define NOT_A_TIMER 0 -// just threw this in here cause I can, aw yeah #define TIMER_CCR(NUM,CHAN) TIMER ## NUM ## _CH ## CHAN ## _CRR #define TIMER1_CH1_CCR (TimerCCR)(TIMER1_BASE + 0x34) @@ -120,8 +118,9 @@ typedef volatile uint32* TimerCCR; #define TIMER4_CH3_CCR (TimerCCR)(TIMER4_BASE + 0x3C) #define TIMER4_CH4_CCR (TimerCCR)(TIMER4_BASE + 0x40) -// Timer5 and Timer8 are in high-density devices only (such as Maple Native). -// Timer6 and Timer7 in these devices have no output compare pins. +/* Timer5 and Timer8 are in high-density devices only (such as Maple + Native). Timer6 and Timer7 in these devices have no output compare + pins. */ #define TIMER5_CH1_CCR (TimerCCR)(TIMER5_BASE + 0x34) #define TIMER5_CH2_CCR (TimerCCR)(TIMER5_BASE + 0x38) @@ -180,24 +179,24 @@ typedef struct { uint16 RESERVED19; } timer_port; -// timer device numbers +/* timer device numbers */ enum { - TIMER1, - TIMER2, - TIMER3, - TIMER4, - TIMER5, // High density only - TIMER6, // High density only; no compare - TIMER7, // High density only; no compare - TIMER8, // High density only + TIMER1, + TIMER2, + TIMER3, + TIMER4, + TIMER5, // High density only + TIMER6, // High density only; no compare + TIMER7, // High density only; no compare + TIMER8, // High density only }; -// timer descriptor +/* timer descriptor */ struct timer_dev { - timer_port *base; - const uint8 rcc_dev_num; - const uint8 nvic_dev_num; - volatile voidFuncPtr handlers[4]; + timer_port *base; + const uint8 rcc_dev_num; + const uint8 nvic_dev_num; + volatile voidFuncPtr handlers[4]; }; extern struct timer_dev timer_dev_table[]; @@ -206,7 +205,7 @@ extern struct timer_dev timer_dev_table[]; * void timer_init(uint32 timer, uint16 prescale) * timer -> {1-4} * prescale -> {1-65535} - * */ + */ void timer_init(uint8, uint16); void timer_disable_all(void); uint16 timer_get_count(uint8); @@ -217,7 +216,8 @@ void timer_set_prescaler(uint8 timer_num, uint16 prescale); void timer_set_reload(uint8 timer_num, uint16 max_reload); void timer_set_mode(uint8 timer_num, uint8 compare_num, uint8 mode); void timer_set_compare_value(uint8 timer_num, uint8 compare_num, uint16 value); -void timer_attach_interrupt(uint8 timer_num, uint8 compare_num, voidFuncPtr handler); +void timer_attach_interrupt(uint8 timer_num, uint8 compare_num, + voidFuncPtr handler); void timer_detach_interrupt(uint8 timer_num, uint8 compare_num); /* Turn on PWM with duty_cycle on the specified channel in timer. |