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