MIOS32_STOPWATCH
Detailed Description
Stopwatch functions for MIOS32
Allows to measure delays, which is especially useful for measuring the performance of a function, but also for user relevant features (e.g. Tap Tempo)
Define Documentation
#define STOPWATCH_TIMER_BASE TIM6 |
#define STOPWATCH_TIMER_BASE TIM6 |
#define STOPWATCH_TIMER_BASE LPC_TIM3 |
#define STOPWATCH_TIMER_RCC RCC_APB1Periph_TIM6 |
#define STOPWATCH_TIMER_RCC RCC_APB1Periph_TIM6 |
#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) |
Function Documentation
s32 MIOS32_STOPWATCH_Init |
( |
u32 |
resolution |
) |
|
Initializes the 16bit stopwatch timer with the desired resolution:
-
1: 1 uS resolution, time measurement possible in the range of 0.001mS .. 65.535 mS
-
10: 10 uS resolution: 0.01 mS .. 655.35 mS
-
100: 100 uS resolution: 0.1 mS .. 6.5535 seconds
-
1000: 1 mS resolution: 1 mS .. 65.535 seconds
-
other values should not be used!
- Note:
- : this function uses TIM4 on the STM32 chip
- Parameters:
-
[in] | resolution | 1, 10, 100 or 1000 |
- Returns:
- < 0 on errors
Initializes the 16bit stopwatch timer with the desired resolution:
-
1: 1 uS resolution, time measurement possible in the range of 0.001mS .. 65.535 mS
-
10: 10 uS resolution: 0.01 mS .. 655.35 mS
-
100: 100 uS resolution: 0.1 mS .. 6.5535 seconds
-
1000: 1 mS resolution: 1 mS .. 65.535 seconds
-
other values should not be used!
- Note:
- : this function uses TIM6 of the STM32 chip
- Parameters:
-
[in] | resolution | 1, 10, 100 or 1000 |
- Returns:
- < 0 on errors
Initializes the 16bit stopwatch timer with the desired resolution:
-
1: 1 uS resolution, time measurement possible in the range of 0.001mS .. 65.535 mS
-
10: 10 uS resolution: 0.01 mS .. 655.35 mS
-
100: 100 uS resolution: 0.1 mS .. 6.5535 seconds
-
1000: NOT SUPPORTED FOR STM32F4!!!
-
other values should not be used!
- Note:
- : this function uses TIM6 of the STM32 chip
- Parameters:
-
[in] | resolution | 1, 10, 100 or 1000 |
- Returns:
- < 0 on errors
s32 MIOS32_STOPWATCH_Reset |
( |
void |
|
) |
|
Resets the stopwatch
- Returns:
- < 0 on errors
u32 MIOS32_STOPWATCH_ValueGet |
( |
void |
|
) |
|
Returns current value of stopwatch
- Returns:
- 1..65535: valid stopwatch value
-
0xffffffff: counter overrun