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Richard Barry 2012-08-11 21:34:11 +00:00
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FreeRTOS/Demo/ARM7_STR71x_IAR/Library/include/gpio.h Normal file
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/******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
* File Name : gpio.h
* Author : MCD Application Team
* Date First Issued : 08/06/2003
* Description : This file contains all the functions prototypes for the
* GPIO software library.
********************************************************************************
* History:
* 30/11/2004 : V2.0
* 14/07/2004 : V1.3
* 01/01/2004 : V1.2
*******************************************************************************
THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
#ifndef __gpio_H
#define __gpio_H
#include "71x_map.h"
typedef enum
{
GPIO_HI_AIN_TRI,
GPIO_IN_TRI_TTL,
GPIO_IN_TRI_CMOS,
GPIO_IPUPD_WP,
GPIO_OUT_OD,
GPIO_OUT_PP,
GPIO_AF_OD,
GPIO_AF_PP
} GpioPinMode_TypeDef;
#define GPIO_LSB 0x00
#define GPIO_MSB 0x08
/*******************************************************************************
* Function Name : GPIO_Config
* Description : Configure the GPIO port pins
* Input 1 : GPIOx (x can be 0,1 or 2) the desired port
* Input 2 : Port_Pins : pins placements
* Input 3 : Pins Mode
* Output : None
* Return : None
*******************************************************************************/
void GPIO_Config (GPIO_TypeDef *GPIOx, u16 Port_Pins, GpioPinMode_TypeDef GPIO_Mode);
/*******************************************************************************
* Function Name : GPIO_BitRead
* Description : Read the desired port pin value
* Input 1 : Selected GPIO port
* Input 2 : Pin number
* Output : None
* Return : The selected pin value
*******************************************************************************/
inline u8 GPIO_BitRead(GPIO_TypeDef *GPIOx, u8 Port_Pin)
{
return (GPIOx->PD >> Port_Pin) & 0x0001;
}
/*******************************************************************************
* Function Name : GPIO_ByteRead
* Description : Read the desired port Byte value
* Input 1 : Selected GPIO port
* Input 2 : GPIO_MSB or GPIO_LSB
* Output : None
* Return : The GPIO_MSB or GPIO_LSB of the selected PD register
*******************************************************************************/
inline u8 GPIO_ByteRead(GPIO_TypeDef *GPIOx, u8 Port_Byte)
{
return (u8)(GPIOx->PD >> Port_Byte);
}
/*******************************************************************************
* Function Name : GPIO_WordRead
* Description : Read the desired port word value
* Input 1 : Selected GPIO port
* Output : None
* Return : The selected PD register value
*******************************************************************************/
inline u16 GPIO_WordRead(GPIO_TypeDef *GPIOx)
{
return GPIOx->PD;
}
/*******************************************************************************
* Function Name : GPIO_BitWrite
* Description : Set or reset the selected port pin
* Input 1 : Selected GPIO port
* Input 2 : Pin number
* Input 3 : bit value
* Output : None
* Return : None
*******************************************************************************/
void GPIO_BitWrite(GPIO_TypeDef *GPIOx, u8 Port_Pin, u8 Port_Val);
/*******************************************************************************
* Function Name : GPIO_ByteWrite
* Description : Write byte value to the selected PD register
* Input 1 : Selected GPIO port
* Input 2 : GPIO_MSB or GPIO_LSB
* Input 3 : Byte value
* Output : None
* Return : None
*******************************************************************************/
void GPIO_ByteWrite(GPIO_TypeDef *GPIOx, u8 Port_Byte, u8 Port_Val);
/*******************************************************************************
* Function Name : GPIO_WordWrite
* Description : Write word value to the selected PD register
* Input 1 : Selected GPIO port
* Input 2 : Value
* Output : None
* Return : None
*******************************************************************************/
inline void GPIO_WordWrite(GPIO_TypeDef *GPIOx, u16 Port_Val)
{
GPIOx->PD = Port_Val;
}
#endif /* __gpio_H */
/******************* (C) COPYRIGHT 2003 STMicroelectronics *****END OF FILE****/