/***********************************************************************************************************************
* Copyright (C) All rights reserved.
***********************************************************************************************************************/
/***********************************************************************************************************************
* @file gpio.c
* @brief This file implements device driver for GPIO module.
* @version 1.0.0
* @date 2019/6/26
***********************************************************************************************************************/
/***********************************************************************************************************************
Includes
***********************************************************************************************************************/
#include "BAT32G133.h"
#include "gpio.h"
/***********************************************************************************************************************
Pragma directive
***********************************************************************************************************************/
/***********************************************************************************************************************
Global variables and functions
***********************************************************************************************************************/
/**
* @brief Set specified GPIO as output function.
*
* @param port port address, such as &P0, &P1, &P2...
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_Output_Enable(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2A0) &= ~pinMsk; /*
!< PMC=0
: Digital Function */
*(port + 0x020) &= ~pinMsk; /*
!< PM =0
: Output Function */
}
/**
* @brief Set specified GPIO as input function.
*
* @param port port address, such as &P0, &P1, &P2...
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_Input_Enable(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2A0) &= ~pinMsk; /*
!< PMC=0
: Digital Function */
*(port + 0x020) |= pinMsk; /*
!< PM =1
: Input Function */
}
/**
* @brief Enable pull up resister of input GPIO .
*
* @param port port address, such as &P0, &P1, &P2...
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_PullUp_Enable(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2A0) &= ~pinMsk; /*
!< PMC=0
: Digital Function */
*(port - 0x2D0) |= pinMsk; /*
!< PU =1
: Pull Up enable */
}
/**
* @brief Disable pull up resister of input GPIO .
*
* @param port port address, such as &P0, &P1, &P2...
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_PullUp_Disable(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2D0) &= ~pinMsk; /*
!< PU =0
: Pull Up disable */
}
/**
* @brief Enable pull down resister of input GPIO .
*
* @param port port address, such as &P0, &P1, &P2...
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_PullDown_Enable(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2A0) &= ~pinMsk; /*
!< PMC=0
: Digital Function */
*(port - 0x2C0) |= pinMsk; /*
!< PD =1
: Pull Down enable */
}
/**
* @brief Disable pull down resister of input GPIO .
*
* @param port port address, such as &P0, &P1, &P2...
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_PullDown_Disable(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2C0) &= ~pinMsk; /*
!< PD =0
: Pull Down disable */
}
/**
* @brief Nch Open Drain Output mode
*
* @param port address, such as &P0, &P1, &P3, &P5, &P7
* @param pinMsk
* e.g., bit0
: 0x01, bit1
: 0x02, bit0~3
: 0x0F, bit0~7
: 0xFF
*/
void GPIO_Nch_OpenDrain(__IO uint8_t *port, uint8_t pinMsk)
{
*(port - 0x2B0) |= pinMsk; /*
!< POM =1
: Nch OpenDrain Output */
}
/**
* @brief Set specified value to GPIO output
*
* @param port port address, such as &P0, &P1, &P2...
* @param value
*/
void GPIO_Set_Value(__IO uint8_t *port, uint8_t value)
{
*port = value; /*
!< PL = value */
}
/**
* @brief Get value from GPIO input
*
* @param port port address, such as &P0, &P1, &P2...
*
* @return
*/
uint8_t GPIO_Get_Value(__IO uint8_t *port)
{
//PORT->PMS = 0x01; /*
!< Digital output level of the pin is read */
return (*port); /*
!< PL = value */
}
/**
* @brief Initializes the
PORTx
* @param
PORTx: where x can be 0~3
* @param PINx
: where x can be 0~7
* @param MODEx
: such as INPUT,PULLUP_INPUT,TTL_INPUT,ANALOG_INPUT,OUTPUT,OPENDRAIN_OUTPUT,PULLDOWN_INPUT
*
* @retval None
*/
#define CFG_BIT_DIR_INPUT 0x01
#define CFG_BIT_PU 0x02
#define CFG_BIT_PD 0x04
#define CFG_BIT_ANALOG 0x08
void PORT_Init(PORT_TypeDef
PORTx,PIN_TypeDef PINx,PIN_ModeDef MODEx)
{
uint8_t mode = MODEx;
uint8_t pos = 1<<PINx;
#if 1
uint8_t cfg = CFG_BIT_DIR_INPUT;
if(mode == PULLUP_INPUT) {
cfg |= CFG_BIT_PU;
}else if(mode == ANALOG_INPUT) {
cfg |= CFG_BIT_ANALOG;
}else if(mode == OUTPUT) {
cfg &= ~CFG_BIT_DIR_INPUT;
}else if(mode ==PULLDOWN_INPUT) {
cfg |= CFG_BIT_PD;
}
if(cfg & CFG_BIT_DIR_INPUT) {
if(cfg & CFG_BIT_ANALOG)
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) |= pos;
else
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) |= pos;
if(cfg & CFG_BIT_PU)
*((volatile uint8_t*)(&PORT->PU0+
PORTx)) |= pos;
else
*((volatile uint8_t*)(&PORT->PU0+
PORTx)) &= ~pos;
if(cfg & CFG_BIT_PD)
*((volatile uint8_t*)(&PORT->PD0+
PORTx)) |= pos;
else
*((volatile uint8_t*)(&PORT->PD0+
PORTx)) &= ~pos;
} else {
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->POM0+
PORTx)) &= ~pos;
}
#else
switch(mode)
{
case INPUT
:
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) |= pos;
//*((volatile uint8_t*)(&PORT->PIM0+
PORTx)) &= ~pos;
//*((volatile uint8_t*)(&PORT->POM0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PU0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PD0+
PORTx)) &= ~pos;
break;
case PULLUP_INPUT
:
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) |= pos;
//*((volatile uint8_t*)(&PORT->PIM0+
PORTx)) &= ~pos;
//*((volatile uint8_t*)(&PORT->POM0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PU0+
PORTx)) |= pos;
*((volatile uint8_t*)(&PORT->PD0+
PORTx)) &= ~pos;
break;
case TTL_INPUT
:
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) |= pos;
//*((volatile uint8_t*)(&PORT->PIM0+
PORTx)) |= pos;
//*((volatile uint8_t*)(&PORT->POM0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PU0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PD0+
PORTx)) &= ~pos;
break;
case ANALOG_INPUT
:
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) |= pos;
break;
case OUTPUT
:
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) &= ~pos;
//*((volatile uint8_t*)(&PORT->PIM0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->POM0+
PORTx)) &= ~pos;
break;
// case OPENDRAIN_OUTPUT
:
// *((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
// *((volatile uint8_t*)(&PORT->PM0+
PORTx)) &= ~pos;
// //*((volatile uint8_t*)(&PORT->PIM0+
PORTx)) &= ~pos;
// *((volatile uint8_t*)(&PORT->POM0+
PORTx)) |= pos;
// break;
case PULLDOWN_INPUT
:
*((volatile uint8_t*)(&PORT->PMC0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PM0+
PORTx)) |= pos;
//*((volatile uint8_t*)(&PORT->PIM0+
PORTx)) &= ~pos;
//*((volatile uint8_t*)(&PORT->POM0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PU0+
PORTx)) &= ~pos;
*((volatile uint8_t*)(&PORT->PD0+
PORTx)) |= pos;
break;
}
#endif
}
/**
* @brief Set the
PORTx bit
* @param
PORTx: where x can be 0~3
* @param PINx
: where x can be 0~7
*
* @retval None
*/
void PORT_SetBit(PORT_TypeDef
PORTx,PIN_TypeDef PINx)
{
uint8_t pos = 1<<PINx;
*((volatile uint8_t*)(&PORT->P0+
PORTx)) |= pos;
}
/**
* @brief Clear the
PORTx bit
* @param
PORTx: where x can be 0~3
* @param PINx
: where x can be 0~7
*
* @retval None
*/
void PORT_ClrBit(PORT_TypeDef
PORTx,PIN_TypeDef PINx)
{
uint8_t pos = 1<<PINx;
*((volatile uint8_t*)(&PORT->P0+
PORTx)) &= ~pos;
}
/**
* @brief Toggle the
PORTx bit
* @param
PORTx: where x can be 0~3
* @param PINx
: where x can be 0~7
*
* @retval None
*/
void PORT_ToggleBit(PORT_TypeDef
PORTx,PIN_TypeDef PINx)
{
uint8_t pos = 1<<PINx;
*((volatile uint8_t*)(&PORT->P0+
PORTx)) ^= pos;
}
/**
* @brief Get the
PORTx bit
* @param
PORTx: where x can be 0~3
* @param PINx
: where x can be 0~7
*
* @retval None
*/
uint8_t PORT_GetBit(PORT_TypeDef
PORTx,PIN_TypeDef PINx)
{
uint8_t pos = 1<<PINx;
//PORT->PMS = 0x01; /*
!< Digital output level of the pin is read */
return *((volatile uint8_t*)(&PORT->P0+
PORTx))&pos;
}
/**
* @brief Config the
PORTx bit
* @param PORT_CFGx
: such as P00_CFG ...
* @param CFGx
: such as IOCFG_INTP0 ...
*
* @retval None
*/
void PORT_Cfg(IO_CfgType PORT_CFGx, IO_CfgDef CFGx)
{
*((volatile uint8_t*)(&PORT->P00CFG+PORT_CFGx)) = CFGx;
}
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