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STM32F1xx: Changed markup to get more control over documentation, each

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file having its own group module rather than using @file.

No code changes except for the following:

gpio: Added function to map the eventout signal plus two Remap functions
dma: Prevent changing base addresses while channel enabled (see datasheet)
pwr: Added pwr.c (new file)
timer: Removed the last function that I introduced recently; there is already
an equivalent function present. Changed some parameter names for consistency.
This commit is contained in:
Ken Sarkies
2012-08-20 17:19:20 +09:30
parent a2c5b6391d
commit 52533a6e3d
19 changed files with 1588 additions and 290 deletions
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75
lib/stm32/systick.c
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@@ -1,3 +1,23 @@
/** @defgroup STM32F-systick-file SysTick
@ingroup STM32F-files
@brief <b>libopencm3 STM32Fxx System Tick Timer</b>
@version 1.0.0
@author @htmlonly &copy; @endhtmlonly 2010 Thomas Otto <tommi@viadmin.org>
@date 19 August 2012
This library supports the System Tick timer in the
STM32F series of ARM Cortex Microcontrollers by ST Microelectronics.
The System Tick timer is part of the ARM Cortex core. It is a 24 bit
down counter that can be configured with an automatical reload value.
LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
@@ -17,44 +37,97 @@
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**@{*/
#include <libopencm3/stm32/systick.h>
/*-----------------------------------------------------------------------------*/
/** @brief SysTick Set the Automatic Reload Value.
The counter is set to the reload value when the counter starts and after it
reaches zero.
@param[in] value u32. 24 bit reload value.
*/
void systick_set_reload(u32 value)
{
STK_LOAD = (value & 0x00FFFFFF);
}
/*-----------------------------------------------------------------------------*/
/** @brief SysTick Read the Automatic Reload Value.
@returns 24 bit reload value as u32.
*/
u32 systick_get_value(void)
{
return STK_VAL;
}
/*-----------------------------------------------------------------------------*/
/** @brief Set the SysTick Clock Source.
The clock source can be either the AHB clock or the same clock divided by 8.
@param[in] clocksource u8. Clock source from @ref systick_clksource.
*/
void systick_set_clocksource(u8 clocksource)
{
if (clocksource < 2)
STK_CTRL |= (clocksource << STK_CTRL_CLKSOURCE_LSB);
}
/*-----------------------------------------------------------------------------*/
/** @brief Enable SysTick Interrupt.
*/
void systick_interrupt_enable(void)
{
STK_CTRL |= STK_CTRL_TICKINT;
}
/*-----------------------------------------------------------------------------*/
/** @brief Disable SysTick Interrupt.
*/
void systick_interrupt_disable(void)
{
STK_CTRL &= ~STK_CTRL_TICKINT;
}
/*-----------------------------------------------------------------------------*/
/** @brief Enable SysTick Counter.
*/
void systick_counter_enable(void)
{
STK_CTRL |= STK_CTRL_ENABLE;
}
/*-----------------------------------------------------------------------------*/
/** @brief Disable SysTick Counter.
*/
void systick_counter_disable(void)
{
STK_CTRL &= ~STK_CTRL_ENABLE;
}
/*-----------------------------------------------------------------------------*/
/** @brief SysTick Read the Counter Flag.
The count flag is set when the timer count becomes zero, and is cleared when the
flag is read.
@returns Boolean if flag set.
*/
u8 systick_get_countflag(void)
{
if (STK_CTRL & STK_CTRL_COUNTFLAG)
@@ -62,3 +135,5 @@ u8 systick_get_countflag(void)
else
return 0;
}
/**@}*/