This component provides services for initialization and control of the PWM unit (pulse width modulation). The PWM module generates pulses with variable pulse width. It allows the selection of the duty cycle and the signal period time.
- See also
- PWM Configuration
-
Pwm Driver Interrupt Handlers
◆ PWM_SW_MAJOR_VERSION
| #define PWM_SW_MAJOR_VERSION (1U) |
Driver Implementation Major Version.
◆ PWM_SW_MINOR_VERSION
| #define PWM_SW_MINOR_VERSION (3U) |
Driver Implementation Minor Version.
◆ PWM_SW_PATCH_VERSION
| #define PWM_SW_PATCH_VERSION (2U) |
Driver Implementation Patch Version.
◆ PWM_AR_RELEASE_MAJOR_VERSION
| #define PWM_AR_RELEASE_MAJOR_VERSION (4U) |
AUTOSAR Major version specification implemented by PWM Driver.
◆ PWM_AR_RELEASE_MINOR_VERSION
| #define PWM_AR_RELEASE_MINOR_VERSION (3U) |
AUTOSAR Minor version specification implemented by PWM Driver.
◆ PWM_AR_RELEASE_REVISION_VERSION
| #define PWM_AR_RELEASE_REVISION_VERSION (1U) |
AUTOSAR Patch version specification implemented by PWM Driver.
◆ PWM_VENDOR_ID
| #define PWM_VENDOR_ID ((uint16) 44U) |
Texas Instruments Vendor ID.
◆ PWM_MODULE_ID
| #define PWM_MODULE_ID ((uint16) 121U) |
◆ PWM_INSTANCE_ID
◆ PWM_USE_EPWM
◆ PWM_E_INIT_FAILED
| #define PWM_E_INIT_FAILED ((uint8)(0x10U)) |
PWM driver configuration parameter error.
◆ PWM_E_UNINIT
| #define PWM_E_UNINIT ((uint8)(0x11U)) |
PWM driver Not initialized error.
◆ PWM_E_PARAM_CHANNEL
| #define PWM_E_PARAM_CHANNEL ((uint8)(0x12U)) |
PWM driver Invalid param.
◆ PWM_E_PERIOD_UNCHANGEABLE
| #define PWM_E_PERIOD_UNCHANGEABLE ((uint8)(0x13U)) |
PWM driver Fixed period channel.
◆ PWM_E_ALREADY_INITIALIZED
| #define PWM_E_ALREADY_INITIALIZED ((uint8)(0x14U)) |
PWM driver Already initialized.
◆ PWM_E_PARAM_POINTER
| #define PWM_E_PARAM_POINTER ((uint8)(0x15U)) |
PWM driver pointer paramter error.
◆ PWM_E_NOT_DISENGAGED
| #define PWM_E_NOT_DISENGAGED ((uint8)(0x16U)) |
RunTime Error: API Pwm_SetPowerState is called while the PWM module is still in use.
◆ PWM_SID_INIT
| #define PWM_SID_INIT ((uint8)(0x0U)) |
PWM driver service ID for Initialization API.
◆ PWM_SID_DEINIT
| #define PWM_SID_DEINIT ((uint8)(0x1U)) |
PWM driver service ID for De-Initialization API.
◆ PWM_SID_SET_DUTY_CYCLE
| #define PWM_SID_SET_DUTY_CYCLE ((uint8)(0x2U)) |
PWM driver service ID for set duty cycle API.
◆ PWM_SID_SET_PERIOD_AND_DUTY
| #define PWM_SID_SET_PERIOD_AND_DUTY ((uint8)(0x3U)) |
PWM driver service ID for set duty cycle and period API.
◆ PWM_SID_SET_OUTPUT_TO_IDLE
| #define PWM_SID_SET_OUTPUT_TO_IDLE ((uint8)(0x4U)) |
PWM driver service ID for set output state to idle API.
◆ PWM_SID_GET_OUTPUT_STATE
| #define PWM_SID_GET_OUTPUT_STATE ((uint8)(0x5U)) |
PWM driver service ID for get output state API.
◆ PWM_SID_DISABLE_NOTIFICATION
| #define PWM_SID_DISABLE_NOTIFICATION ((uint8)(0x6U)) |
PWM driver service ID for disable notification API.
◆ PWM_SID_ENABLE_NOTIFICATION
| #define PWM_SID_ENABLE_NOTIFICATION ((uint8)(0x7U)) |
PWM driver service ID for Enable notification API.
◆ PWM_SID_GET_VERSION_INFO
| #define PWM_SID_GET_VERSION_INFO ((uint8)(0x8U)) |
PWM driver service ID for Get version info API.
◆ PWM_SID_REGISTER_READBACK
| #define PWM_SID_REGISTER_READBACK ((uint8)(0xDU)) |
PWM driver service ID for Critical register read back API.
◆ PWM_STATUS_UNINIT
| #define PWM_STATUS_UNINIT ((uint8)(0U)) |
PWM driver Status uninitialized.
◆ PWM_STATUS_INIT
| #define PWM_STATUS_INIT ((uint8)(1U)) |
PWM driver Status Initialized.
◆ PWM_DUTY_0_PERCENT
| #define PWM_DUTY_0_PERCENT (0x0U) |
16bit value representing 0% of a period value
◆ PWM_DUTY_100_PERCENT
| #define PWM_DUTY_100_PERCENT (0x8000U) |
16 bit value representing 100% of a period value
◆ PWM_DUTY_50_PERCENT
| #define PWM_DUTY_50_PERCENT (0x4000U) |
16 bit value representing 50% of a period value
◆ PWM_MAX_NUM_CHANNELS
| #define PWM_MAX_NUM_CHANNELS (6U) |
◆ PWM_CHANNEL1
| #define PWM_CHANNEL1 (0U) |
EPWM Channel 1, in MAIN DOMAIN.
◆ PWM_CHANNEL2
| #define PWM_CHANNEL2 (1U) |
EPWM Channel 2, in MAIN DOMAIN.
◆ PWM_CHANNEL3
| #define PWM_CHANNEL3 (2U) |
EPWM Channel 3, in MAIN DOMAIN.
◆ PWM_CHANNEL4
| #define PWM_CHANNEL4 (3U) |
EPWM Channel 4, in MAIN DOMAIN.
◆ PWM_CHANNEL5
| #define PWM_CHANNEL5 (4U) |
EPWM Channel 5, in MAIN DOMAIN.
◆ PWM_CHANNEL6
| #define PWM_CHANNEL6 (5U) |
EPWM Channel 6, in MAIN DOMAIN.
◆ Pwm_Init()
Service for PWM initialization.
* Service name : Pwm_Init
* Syntax : Pwm_Init(P2CONST(Pwm_ConfigType,
* AUTOMATIC, PWM_PBCFG) ConfigPtr)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x00
* Sync/Async : Synchronous
* Reentrancy : Non Reentrant
* Parameters (in) : Pointer to the configuration
* Parameters (out) : None
* Return value : void
* Description : Initializes internal variables
* and the PWM unit of the micro controller.
* The function can be called on task level.
*
◆ Pwm_DeInit()
Service for PWM de-initialization.
* Service name : Pwm_DeInit
* Syntax : Pwm_DeInit(void)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x01
* Sync/Async : Synchronous
* Reentrancy : Non Reentrant
* Parameters (in) : None
* Parameters (out) : None
* Return value : void
* Description : After DeInit output states should be in idle level
* (it is configurable whether reset state is restored or
* if channel output states are really set to idle).
* The function can be called on task level.
*
◆ Pwm_SetDutyCycle()
Service for setting Duty Cycle.
* Service name : Pwm_SetDutyCycle
* Syntax : Pwm_SetDutyCycle(Pwm_ChannelType Channel,
* uint16 DutyCycle)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x02
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Parameters (in) : Pwm_ChannelType Channel
* Parameters (in) : uint16 DutyCycle
* Parameters (out) : None
* Return value : void
* Description : This service sets the duty cycle for a channel
* if DutyCycle is 0%, set output to inverse of polarity
* if DutyCycle is >= 100%, set output to polarity
* if 0% < DutyCycle < 100%, set output accordingly
* The function can be called on task level.
*
◆ Pwm_SetPeriodAndDuty()
Service for setting Period and Duty Cycle.
* Service name : Pwm_SetPeriodAndDuty
* Syntax : Pwm_SetPeriodAndDuty(Pwm_ChannelType Channel,
* Pwm_PeriodType Period, uint16 DutyCycle)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x03
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Parameters (in) : Pwm_ChannelType Channel
* Parameters (in) : Pwm_PeriodType Period
* Parameters (in) : uint16 DutyCycle
* Parameters (out) : None
* Return value : void
* Description : This service sets period and duty cycle for a channel
* if DutyCycle is 0%, set output to inverse of polarity
* if DutyCycle is >= 100%, set output to polarity
* if 0% < DutyCycle < 100%, set output accordingly
* The function can be called on task level.
*
◆ Pwm_SetOutputToIdle()
Service to set the output of a channel immediately to idle.
* Service name : Pwm_SetOutputToIdle
* Syntax : Pwm_SetOutputToIdle(Pwm_ChannelType Channel)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x04
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Parameters (in) : Pwm_ChannelType Channel
* Parameters (out) : None
* Return value : void
* Description : This service sets the output of a channel
* immediately to idle. The idle output level
* is configured in driver configuration.
* The function can be called on task level.
*
◆ Pwm_DisableNotification()
Service to disable the Edge Notification.
* Service name : Pwm_DisableNotification
* Syntax : Pwm_DisableNotification(Pwm_ChannelType ChannelNumber)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x06
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Parameters (in) : Pwm_ChannelType ChannelNumber
* Parameters (out) : None
* Return value : None
* Description : Disables the Edge Notification
* This service deactivates the Edge Notification for the
* pwm channel specified by the ChannelNumber Parameter.
* The function can be called on task level.
*
◆ Pwm_EnableNotification()
Service to enable the Edge Notification.
* Service name : Pwm_EnableNotification
* Syntax : Pwm_EnableNotification (Pwm_ChannelType Channel,
* Pwm_EdgeNotificationType Notification)
* Mode : Supervisor Mode (Privileged Mode)
* Service ID[hex] : 0x07
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Parameters (in) : Pwm_ChannelType ChannelNumber
* Parameters (in) : Pwm_EdgeNotificationType Notification
* Parameters (out) : None
* Return value : None
* Description : Enables the Edge Notification
* This service enables the notification of the chosen
* edges for the Pwm channel specified by the
* ChannelNumber.The function can be called on task level
*
◆ Pwm_GetVersionInfo()
| void Pwm_GetVersionInfo |
( |
Std_VersionInfoType * |
versioninfo | ) |
|
This service returns the version information of this module.
* Service name : Pwm_GetVersionInfo
* Syntax : Pwm_GetVersionInfo(P2VAR(Std_VersionInfoType,
* AUTOMATIC, PWM_APPL_DATA) versioninfo)
* Mode : User Mode (Non-Privileged Mode)
* Service ID[hex] : 0x08
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Parameters (in) : Std_VersionInfoType - Version info.
* Parameters (out) : None
* Return value : void
* Description : Returns the version information of this module.
* The function can be called on task level.
*
◆ Pwm_RegisterReadback()
This function reads the important registers of the hardware unit and returns the value in the structure.
* Service name : Pwm_RegisterReadback(Pwm_ChannelType ChannelNumber,
* Pwm_RegisterReadbackType *RegRbPtr)
* Sync/Async : Synchronous
* Reentrancy : Reentrant
* Service ID[hex] : 0x0D
* Parameters (in) : Pwm_ChannelType ChannelNumber
* Parameters (inout) : RegRbPtr - Pointer to where to store the readback
* values. If this pointer is NULL, then the API
* will return E_NOT_OK.
* Description : This API is used to check the status of critical
registers which donot change during program execution.
* Return value : Std_ReturnType
* E_OK: Register read back has been done successfully
* E_NOT_OK: Register read back failed
*
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