[cm3] fix doxygen for systick_get_value, add systick_get_reload

Fix the reload value in the examples:
to get a SysTick interrupt every N clock pulses: set reload to N-1
see http://infocenter.arm.com/help/topic/com.arm.doc.dui0552a/BGBEEJHC.html#BABGACGG
This commit is contained in:
Felix Ruess
2013-02-19 19:22:49 +01:00
parent 46263e90b4
commit 3ef44bff54
13 changed files with 36 additions and 13 deletions

View File

@@ -91,7 +91,8 @@ void systick_setup(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

View File

@@ -241,7 +241,8 @@ static void hid_set_config(usbd_device *usbd_dev, u16 wValue)
#endif
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(100000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(99999);
systick_interrupt_enable();
systick_counter_enable();
}

View File

@@ -91,7 +91,8 @@ void systick_setup(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

View File

@@ -223,7 +223,8 @@ void systick_setup(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

View File

@@ -75,7 +75,8 @@ void systick_setup(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 8000000/8000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(8000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(7999);
systick_interrupt_enable();

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@@ -68,7 +68,8 @@ int main(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 8000000/8000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(8000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(7999);
systick_interrupt_enable();

View File

@@ -79,7 +79,8 @@ void systick_setup(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

View File

@@ -77,7 +77,8 @@ int main(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

View File

@@ -62,7 +62,8 @@ int main(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

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@@ -238,7 +238,8 @@ static void hid_set_config(usbd_device *usbd_dev, u16 wValue)
#endif
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(100000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(99999);
systick_interrupt_enable();
systick_counter_enable();
}

View File

@@ -222,7 +222,8 @@ void systick_setup(void)
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
/* 9000000/9000 = 1000 overflows per second - every 1ms one interrupt */
systick_set_reload(9000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(8999);
systick_interrupt_enable();

View File

@@ -236,7 +236,8 @@ static void hid_set_config(usbd_device *usbd_dev, u16 wValue)
#endif
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(100000);
/* SysTick interrupt every N clock pulses: set reload to N-1 */
systick_set_reload(99999);
systick_interrupt_enable();
systick_counter_enable();
}