GPIO Read and Write.
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GPIO Read and Write.
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##### GPIO Read and Write #####
===============================================================================
uint16_t GPIO_ReadInputData |
( |
GPIO_TypeDef * |
GPIOx | ) |
|
Reads the specified input port pin.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
- Return values
-
uint8_t GPIO_ReadInputDataBit |
( |
GPIO_TypeDef * |
GPIOx, |
|
|
uint16_t |
GPIO_Pin |
|
) |
| |
Reads the specified input port pin.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
GPIO_Pin,: | specifies the port bit to read. |
- Note
- This parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOC, GPIOD or GPIOE; (0..10 & 14..15) for GPIOB; (0..2, 4, 6, 9..10) for GPIOF.
- Return values
-
uint16_t GPIO_ReadOutputData |
( |
GPIO_TypeDef * |
GPIOx | ) |
|
Reads the specified GPIO output data port.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
- Return values
-
GPIO | output data port value. |
uint8_t GPIO_ReadOutputDataBit |
( |
GPIO_TypeDef * |
GPIOx, |
|
|
uint16_t |
GPIO_Pin |
|
) |
| |
Reads the specified output data port bit.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
GPIO_Pin,: | Specifies the port bit to read. |
- Note
- This parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOC, GPIOD or GPIOE; (0..10 & 14..15) for GPIOB; (0..2, 4, 6, 9..10) for GPIOF.
- Return values
-
The | output port pin value. |
void GPIO_ResetBits |
( |
GPIO_TypeDef * |
GPIOx, |
|
|
uint16_t |
GPIO_Pin |
|
) |
| |
Clears the selected data port bits.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
GPIO_Pin,: | specifies the port bits to be written. |
- Note
- This parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOC, GPIOD or GPIOE; (0..10 & 14..15) for GPIOB; (0..2, 4, 6, 9..10) for GPIOF.
- Return values
-
void GPIO_SetBits |
( |
GPIO_TypeDef * |
GPIOx, |
|
|
uint16_t |
GPIO_Pin |
|
) |
| |
Sets the selected data port bits.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
GPIO_Pin,: | specifies the port bits to be written. |
- Note
- This parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOC, GPIOD or GPIOE; (0..10 & 14..15) for GPIOB; (0..2, 4, 6, 9..10) for GPIOF.
- Return values
-
void GPIO_Write |
( |
GPIO_TypeDef * |
GPIOx, |
|
|
uint16_t |
PortVal |
|
) |
| |
Writes data to the specified GPIO data port.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
PortVal,: | specifies the value to be written to the port output data register. |
- Return values
-
void GPIO_WriteBit |
( |
GPIO_TypeDef * |
GPIOx, |
|
|
uint16_t |
GPIO_Pin, |
|
|
BitAction |
BitVal |
|
) |
| |
Sets or clears the selected data port bit.
- Parameters
-
GPIOx,: | where x can be (A, B, C, D, E or F) to select the GPIO peripheral. |
GPIO_Pin,: | specifies the port bit to be written. |
- Note
- This parameter can be GPIO_Pin_x where x can be: (0..15) for GPIOA, GPIOC, GPIOD or GPIOE; (0..10 & 14..15) for GPIOB; (0..2, 4, 6, 9..10) for GPIOF.
- Parameters
-
BitVal,: | specifies the value to be written to the selected bit. This parameter can be one of the BitAction enumeration values:
- Bit_RESET: to clear the port pin
- Bit_SET: to set the port pin
|
- Return values
-