CPU Cycle Counter provides an interface to the COUNT and COMPARE registers.
Modules | |
| Related Project(s) | |
| In this section you can find all the projects related to the CPU - Cycle Counter. | |
Data Structures | |
| struct | t_cpu_time |
| Structure holding private information, automatically initialized by the cpu_set_timeout() function. More... | |
Macros | |
| #define | Get_sys_compare() ( Get_system_register(AVR32_COMPARE) ) |
| #define | Get_sys_count() ( Get_system_register(AVR32_COUNT) ) |
| #define | Set_sys_compare(x) ( Set_system_register(AVR32_COMPARE, (x)) ) |
| #define | Set_sys_count(x) ( Set_system_register(AVR32_COUNT, (x)) ) |
Functions | |
| static __always_inline uint32_t | cpu_cy_2_ms (unsigned long cy, unsigned long fcpu_hz) |
| Convert CPU cycles into milli-seconds. More... | |
| static __always_inline uint32_t | cpu_cy_2_us (unsigned long cy, unsigned long fcpu_hz) |
| Convert CPU cycles into micro-seconds. More... | |
| static __always_inline void | cpu_delay_cy (unsigned long delay) |
| Waits during at least the specified delay (in CPU cycles) before returning. More... | |
| static __always_inline void | cpu_delay_ms (unsigned long delay, unsigned long fcpu_hz) |
| Waits during at least the specified delay (in millisecond) before returning. More... | |
| static __always_inline void | cpu_delay_us (unsigned long delay, unsigned long fcpu_hz) |
| Waits during at least the specified delay (in microsecond) before returning. More... | |
| static __always_inline unsigned long | cpu_is_timeout (t_cpu_time *cpu_time) |
| Test if a timer variable reached its timeout. More... | |
| static __always_inline unsigned long | cpu_is_timer_stopped (t_cpu_time *cpu_time) |
| Test if a timer is stopped. More... | |
| static __always_inline uint32_t | cpu_ms_2_cy (unsigned long ms, unsigned long fcpu_hz) |
| Convert milli-seconds into CPU cycles. More... | |
| static __always_inline void | cpu_set_timeout (unsigned long delay, t_cpu_time *cpu_time) |
| Set a timer variable. More... | |
| static __always_inline void | cpu_stop_timeout (t_cpu_time *cpu_time) |
| Stop a timeout detection. More... | |
| static __always_inline uint32_t | cpu_us_2_cy (unsigned long us, unsigned long fcpu_hz) |
| Convert micro-seconds into CPU cycles. More... | |
| #define Get_sys_compare | ( | ) | ( Get_system_register(AVR32_COMPARE) ) |
Referenced by main().
| #define Get_sys_count | ( | ) | ( Get_system_register(AVR32_COUNT) ) |
Referenced by addition(), convolution(), copy(), dot_division(), dot_multiplication(), int_division(), int_multiplication(), main(), maximum(), minimum(), negate(), partial_convolution(), power(), real_addition(), real_division(), real_multiplication(), real_subtraction(), subtraction(), ushell_cmd_perform_access(), ushell_cmd_perform_extaccess(), ushell_cmd_perform_transfer(), and zero_padding().
| #define Set_sys_compare | ( | x | ) | ( Set_system_register(AVR32_COMPARE, (x)) ) |
Referenced by main().
| #define Set_sys_count | ( | x | ) | ( Set_system_register(AVR32_COUNT, (x)) ) |
|
static |
Convert CPU cycles into milli-seconds.
| cy,: | Number of CPU cycles. |
| fcpu_hz,: | CPU frequency in Hz. |
Referenced by time_tick_calc_delay().
|
static |
Convert CPU cycles into micro-seconds.
| cy,: | Number of CPU cycles. |
| fcpu_hz,: | CPU frequency in Hz. |
Referenced by sensor_timestamp(), ushell_cmd_perform_access(), ushell_cmd_perform_extaccess(), and ushell_cmd_perform_transfer().
|
static |
Waits during at least the specified delay (in CPU cycles) before returning.
| delay,: | Number of CPU cycles to wait. |
References cpu_is_timeout(), cpu_set_timeout(), and timer.
Referenced by qt60168_check_device_ready(), and qt60168_wait_cmd_received().
|
static |
Waits during at least the specified delay (in millisecond) before returning.
| delay,: | Number of millisecond to wait. |
| fcpu_hz,: | CPU frequency in Hz. |
References cpu_is_timeout(), cpu_ms_2_cy(), cpu_set_timeout(), and timer.
Referenced by et024006_PowerOn(), et024006_PowerUp(), et024006_ResetDisplay(), led_task(), main(), and wdt_scheduler().
|
static |
Waits during at least the specified delay (in microsecond) before returning.
| delay,: | Number of microsecond to wait. |
| fcpu_hz,: | CPU frequency in Hz. |
References cpu_is_timeout(), cpu_set_timeout(), cpu_us_2_cy(), and timer.
Referenced by at42qt1060_read_reg(), et024006_ResetDisplay(), and usb_suspend_action().
|
static |
Test if a timer variable reached its timeout.
Once the timeout is reached, the function will always return true, until the cpu_stop_timeout() function is called.
Ex: t_cpu_time timer; cpu_set_timeout( 10, FOSC0, &timer ); // timeout in 10 ms if( cpu_is_timeout(&timer) ) cpu_stop_timeout(&timer); ../..
| cpu_time,: | (input) internal information used by the timer API. |
References CPU_TIMER_STATE_REACHED, CPU_TIMER_STATE_STOPPED, t_cpu_time::delay_end_cycle, t_cpu_time::delay_start_cycle, Get_system_register, and t_cpu_time::timer_state.
Referenced by check_device_task(), com_task(), cpu_delay_cy(), cpu_delay_ms(), cpu_delay_us(), gui_task(), main(), mmi_activity_display(), mmi_display(), playback_task(), usb_host_task(), usb_stream_input(), and usb_stream_resync().
|
static |
Test if a timer is stopped.
| cpu_time,: | (input) internal information used by the timer API. |
References CPU_TIMER_STATE_STOPPED, and t_cpu_time::timer_state.
Referenced by check_device_task(), and usb_stream_input().
|
static |
Convert milli-seconds into CPU cycles.
| ms,: | Number of millisecond. |
| fcpu_hz,: | CPU frequency in Hz. |
Referenced by check_device_task(), com_task(), cpu_delay_ms(), device_hid_task_init(), gui_change_update_fs(), gui_task(), main(), mmi_activity_display(), mmi_display(), playback_task(), usb_stream_init(), usb_stream_input(), and usb_stream_resync().
|
static |
Set a timer variable.
Ex: t_cpu_time timer; cpu_set_timeout( cpu_ms_2_cy(10, FOSC0), &timer ); // timeout in 10 ms if( cpu_is_timeout(&timer) ) cpu_stop_timeout(&timer); ../..
| delay,: | (input) delay in CPU cycles before timeout. |
| cpu_time,: | (output) internal information used by the timer API. |
References CPU_TIMER_STATE_STARTED, t_cpu_time::delay_end_cycle, t_cpu_time::delay_start_cycle, Get_system_register, and t_cpu_time::timer_state.
Referenced by check_device_task(), com_task(), cpu_delay_cy(), cpu_delay_ms(), cpu_delay_us(), device_hid_task_init(), gui_change_update_fs(), gui_task(), main(), mmi_activity_display(), mmi_display(), playback_task(), usb_stream_init(), usb_stream_input(), and usb_stream_resync().
|
static |
Stop a timeout detection.
Ex: t_cpu_time timer; cpu_set_timeout( 10, FOSC0, &timer ); // timeout in 10 ms if( cpu_is_timeout(&timer) ) cpu_stop_timeout(&timer); ../..
| cpu_time,: | (input) internal information used by the timer API. |
References CPU_TIMER_STATE_STOPPED, and t_cpu_time::timer_state.
Referenced by check_device_task(), com_task(), com_task_init(), mmi_display(), usb_stream_init(), and usb_stream_input().
|
static |
Convert micro-seconds into CPU cycles.
| us,: | Number of microsecond. |
| fcpu_hz,: | CPU frequency in Hz. |
Referenced by cpu_delay_us(), qt60168_check_device_ready(), qt60168_wait_cmd_received(), and usb_stream_input().
1.8.5