MIOS32_TIMER
Detailed Description
Timer functions for MIOS32
Define Documentation
#define TIM_PERIPHERAL_FRQ (MIOS32_SYS_CPU_FREQUENCY/2) |
#define TIM_PERIPHERAL_FRQ MIOS32_SYS_CPU_FREQUENCY |
#define TIM_PERIPHERAL_FRQ (MIOS32_SYS_CPU_FREQUENCY/4) |
#define TIMER0_BASE LPC_TIM0 |
#define TIMER0_IRQ TIM2_IRQn |
#define TIMER0_IRQ TIM2_IRQn |
#define TIMER0_IRQ TIMER0_IRQn |
#define TIMER0_IRQ_HANDLER void TIM2_IRQHandler(void) |
#define TIMER0_IRQ_HANDLER void TIM2_IRQHandler(void) |
#define TIMER0_IRQ_HANDLER void TIMER0_IRQHandler(void) |
#define TIMER0_RCC RCC_APB1Periph_TIM2 |
#define TIMER0_RCC RCC_APB1Periph_TIM2 |
#define TIMER1_BASE LPC_TIM1 |
#define TIMER1_IRQ TIM3_IRQn |
#define TIMER1_IRQ TIM3_IRQn |
#define TIMER1_IRQ TIMER1_IRQn |
#define TIMER1_IRQ_HANDLER void TIM3_IRQHandler(void) |
#define TIMER1_IRQ_HANDLER void TIM3_IRQHandler(void) |
#define TIMER1_IRQ_HANDLER void TIMER1_IRQHandler(void) |
#define TIMER1_RCC RCC_APB1Periph_TIM3 |
#define TIMER1_RCC RCC_APB1Periph_TIM3 |
#define TIMER2_BASE LPC_TIM2 |
#define TIMER2_IRQ TIM5_IRQn |
#define TIMER2_IRQ TIM5_IRQn |
#define TIMER2_IRQ TIMER2_IRQn |
#define TIMER2_IRQ_HANDLER void TIM5_IRQHandler(void) |
#define TIMER2_IRQ_HANDLER void TIM5_IRQHandler(void) |
#define TIMER2_IRQ_HANDLER void TIMER2_IRQHandler(void) |
#define TIMER2_RCC RCC_APB1Periph_TIM5 |
#define TIMER2_RCC RCC_APB1Periph_TIM5 |
Function Documentation
s32 MIOS32_TIMER_DeInit |
( |
u8 |
timer |
) |
|
De-Initialize a timer
Example:
- Parameters:
-
- Returns:
- 0 if timer has been disabled
-
-1 if invalid timer number
s32 MIOS32_TIMER_Init |
( |
u8 |
timer, |
|
|
u32 |
period, |
|
|
void(*)(void) |
_irq_handler, |
|
|
u8 |
irq_priority | |
|
) |
| | |
Initialize a timer
- Parameters:
-
[in] | timer | (0..2)
Timer allocation on STM32: 0=TIM2, 1=TIM3, 2=TIM5 |
[in] | period | in uS accuracy (1..65536) |
[in] | _irq_handler | (function name) |
[in] | irq_priority,: | one of these values:
-
MIOS32_IRQ_PRIO_LOW // lower than RTOS
-
MIOS32_IRQ_PRIO_MID // higher than RTOS
-
MIOS32_IRQ_PRIO_HIGH // same like SRIO, AIN, etc...
-
MIOS32_IRQ_PRIO_HIGHEST // higher than SRIO, AIN, etc...
|
Example:
this will call following function periodically:
- Returns:
- 0 if initialisation passed
-
-1 if invalid timer number
-
-2 if invalid period
s32 MIOS32_TIMER_ReInit |
( |
u8 |
timer, |
|
|
u32 |
period | |
|
) |
| | |
Re-Initialize a timer with given period
Example:
- Parameters:
-
[in] | timer | (0..2)
Timer allocation on STM32: 0=TIM2, 1=TIM3, 2=TIM5 |
[in] | period | in uS accuracy (1..65536) |
- Returns:
- 0 if initialisation passed
-
if invalid timer number
-
-2 if invalid period