Table 13: Description of EXTI configuration macros
Defines the EXTI line connected to the internal peripheral.
Example:
#define PWR_EXTI_LINE_PVD ((uint32_t)0x00010000)
/*!<External interrupt line 16 Connected to the PVD EXTI
Line */
__HAL_PPP_EXTI_ENABLE_IT(__EXTI_LINE__)
Enables a given EXTI line
Example:
__HAL_PVD_EXTI_ENABLE_IT(PWR_EXTI_LINE_PVD)
__HAL_PPP_EXTI_DISABLE_IT(__EXTI_LINE__)
Disables a given EXTI line.
Example:
__HAL_PVD_EXTI_DISABLE_IT(PWR_EXTI_LINE_PVD)
__HAL_PPP_EXTI_GET_FLAG(__EXTI_LINE__)
Gets a given EXTI line interrupt flag pending bit status.
Example:
__HAL_PVD_EXTI_GET_FLAG(PWR_EXTI_LINE_PVD)
__HAL_PPP_EXTI_CLEAR_FLAG(__EXTI_LINE_
_)
Clears a given EXTI line interrupt flag pending bit.
Example;
__HAL_PVD_EXTI_CLEAR_FLAG(PWR_EXTI_LINE_PV
D)
__HAL_PPP_EXTI_GENERATE_SWIT
(__EXTI_LINE__)
Generates a software interrupt for a given EXTI line.
Example:
__HAL_PVD_EXTI_ GENERATE_SWIT
(PWR_EXTI_LINE_PVD)
If the EXTI interrupt mode is selected, the user application must call
HAL_PPP_FUNCTION_IRQHandler() (for example HAL_PWR_PVD_IRQHandler()), from
stm32f2xx_it.c file, and implement HAL_PPP_FUNCTIONCallback() callback function (for
example HAL_PWR_PVDCallback().
2.11.6 DMA
The DMA HAL driver allows enabling and configuring the peripheral to be connected to the
DMA Channels (except for internal SRAM/FLASH memory which do not require any
initialization). Refer to the product reference manual for details on the DMA request
corresponding to each peripheral.
For a given channel, HAL_DMA_Init() API allows programming the required configuration
through the following parameters:
Transfer Direction
Source and Destination data formats
Circular, Normal or peripheral flow control mode
Stream Priority level
Source and Destination Increment mode
FIFO mode and its Threshold (if needed)
Burst mode for Source and/or Destination (if needed).
To Next Page
Loading...
Need help?
General
