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Kinetis:PWM

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This commit is contained in:
David Sidrane
2017-09-29 10:13:51 -04:00
committed by Daniel Agar
parent 58c3c8a94b
commit 2b54ef458b
5 changed files with 284 additions and 495 deletions
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src/drivers/kinetis/drv_io_timer.h
+14 -16
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@@ -46,7 +46,7 @@
__BEGIN_DECLS
/* configuration limits */
#define MAX_IO_TIMERS 4
#define MAX_TIMER_IO_CHANNELS 8
#define MAX_TIMER_IO_CHANNELS 16
#define MAX_LED_TIMERS 2
#define MAX_TIMER_LED_CHANNELS 6
@@ -63,7 +63,7 @@ typedef enum io_timer_channel_mode_t {
IOTimerChanModeSize
} io_timer_channel_mode_t;
typedef uint8_t io_timer_channel_allocation_t; /* big enough to hold MAX_TIMER_IO_CHANNELS */
typedef uint16_t io_timer_channel_allocation_t; /* big enough to hold MAX_TIMER_IO_CHANNELS */
/* array of timers dedicated to PWM in and out and capture use
*** Note that the clock_freq is set to the source in the clock tree that
@@ -74,30 +74,28 @@ typedef uint8_t io_timer_channel_allocation_t; /* big enough to hold MAX_TIMER_I
*** the resulting PSC will be one and the timer will count at it's clock frequency.
*/
typedef struct io_timers_t {
uint32_t base;
uint32_t clock_register;
uint32_t clock_bit;
uint32_t clock_freq;
uint32_t vectorno;
uint32_t first_channel_index;
uint32_t last_channel_index;
uint32_t base; /* Base address of the timer */
uint32_t clock_register; /* SIM_SCGCn */
uint32_t clock_bit; /* SIM_SCGCn bit pos */
uint32_t vectorno; /* IRQ number */
uint32_t first_channel_index; /* 0 based index in timer_io_channels */
uint32_t last_channel_index; /* 0 based index in timer_io_channels */
xcpt_t handler;
} io_timers_t;
/* array of channels in logical order */
typedef struct timer_io_channels_t {
uint32_t gpio_out;
uint32_t gpio_in;
uint8_t timer_index;
uint8_t timer_channel;
uint16_t masks;
uint8_t ccr_offset;
uint32_t gpio_out; /* The timer channel GPIO for PWM */
uint32_t gpio_in; /* The timer channel GPIO for Capture */
uint8_t timer_index; /* 0 based index in the io_timers_t table */
uint8_t timer_channel; /* 1 based channel index GPIO_FTMt_CHcIN = c+1) */
} timer_io_channels_t;
typedef void (*channel_handler_t)(void *context, const io_timers_t *timer, uint32_t chan_index,
const timer_io_channels_t *chan,
hrt_abstime isrs_time, uint16_t isrs_rcnt);
hrt_abstime isrs_time, uint16_t isrs_rcnt,
uint16_t capture);
/* supplied by board-specific code */