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| author | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-08-28 13:39:56 +0000 |
|---|---|---|
| committer | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-08-28 13:39:56 +0000 |
| commit | fc492c6d190610cc9537360edf44d6dc5d072a2c (patch) | |
| tree | 53fb1786e058f872671fb3adca4e73c708716d54 /os/hal/include/pwm.h | |
| parent | da23780899ae4b9ce1bbe0cb9109da1c87fe0fa1 (diff) | |
| parent | 663214d0e6728d153fd4118324e69c75c574327c (diff) | |
| download | ChibiOS-fc492c6d190610cc9537360edf44d6dc5d072a2c.tar.gz ChibiOS-fc492c6d190610cc9537360edf44d6dc5d072a2c.tar.bz2 ChibiOS-fc492c6d190610cc9537360edf44d6dc5d072a2c.zip | |
I2C. Merge code from trunk.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/i2c_dev@3263 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/include/pwm.h')
| -rw-r--r-- | os/hal/include/pwm.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/os/hal/include/pwm.h b/os/hal/include/pwm.h index 2ffd3599c..960ac2a69 100644 --- a/os/hal/include/pwm.h +++ b/os/hal/include/pwm.h @@ -36,6 +36,10 @@ /*===========================================================================*/
/**
+ * @name PWM output mode macros
+ * @{
+ */
+/**
* @brief Standard output modes mask.
*/
#define PWM_OUTPUT_MASK 0x0F
@@ -54,6 +58,7 @@ * @brief Inverse PWM logic, active is logic level zero.
*/
#define PWM_OUTPUT_ACTIVE_LOW 0x02
+/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
@@ -95,6 +100,10 @@ typedef void (*pwmcallback_t)(PWMDriver *pwmp); /*===========================================================================*/
/**
+ * @name PWM duty cycle conversion
+ * @{
+ */
+/**
* @brief Converts from fraction to pulse width.
* @note Be careful with rounding errors, this is integer math not magic.
* You can specify tenths of thousandth but make sure you have the
@@ -143,8 +152,13 @@ typedef void (*pwmcallback_t)(PWMDriver *pwmp); */
#define PWM_PERCENTAGE_TO_WIDTH(pwmp, percentage) \
PWM_FRACTION_TO_WIDTH(pwmp, 10000, percentage)
+/** @} */
/**
+ * @name Macro Functions
+ * @{
+ */
+/**
* @brief Changes the period the PWM peripheral.
* @details This function changes the period of a PWM unit that has already
* been activated using @p pwmStart().
@@ -197,6 +211,7 @@ typedef void (*pwmcallback_t)(PWMDriver *pwmp); */
#define pwmDisableChannelI(pwmp, channel) \
pwm_lld_disable_channel(pwmp, channel)
+/** @} */
/*===========================================================================*/
/* External declarations. */
|