中微BAT32G137-GPIO

ti

中微BAT32G137-GPIO简介

BAT32G137所有端口按类型分为 5 种，分别是类型 1~类型 5，对应情况如下：
类型 1：双向 I/O 功能
类型 2：NOD 功能，对应管脚 P60-P63
类型 3：只有输入功能，如时钟，对应管脚 P121-P124
类型 4：只有输出功能，对应管脚 P130
类型 5：RESET 功能，对应管脚 RESETB

大部分的类型是双向IO

实验功能：

循环翻转GPIO

软件实现

/***********************************************************************************************************************
* Copyright (C) All rights reserved.
***********************************************************************************************************************/
/***********************************************************************************************************************
* [url=home.php?mod=space&uid=1455510]@file[/url] gpio.h
* [url=home.php?mod=space&uid=2666770]@Brief[/url] This file implements device driver for GPIO module.
* [url=home.php?mod=space&uid=644434]@version[/url] 1.0.0
* @date 2019/12/24
***********************************************************************************************************************/
#ifndef GPIO_H
#define GPIO_H
#ifndef __CORE_CM0PLUS_H_GENERIC
#include "core_cm0plus.h"
#endif
/***********************************************************************************************************************
Macro definitions (Register bit)
***********************************************************************************************************************/
/***********************************************************************************************************************
Macro definitions
***********************************************************************************************************************/
/***********************************************************************************************************************
Typedef definitions
***********************************************************************************************************************/
typedef enum {
PORT0 = 0,
PORT1,
PORT2,
PORT3,
PORT4,
PORT5,
PORT6,
PORT7,
PORT8,
PORT9,
PORT10,
PORT11,
PORT12,
PORT13,
PORT14,
}PORT_TypeDef;
typedef enum {
PIN0 = 0,
PIN1,
PIN2,
PIN3,
PIN4,
PIN5,
PIN6,
PIN7,
}PIN_TypeDef;
typedef enum {
INPUT = 0,
PULLUP_INPUT,
TTL_INPUT,
ANALOG_INPUT,
OUTPUT,
OPENDRAIN_OUTPUT,
}PIN_ModeDef;
#define PIN_MASK_0 ((uint8_t)(0x01)) /*!< Pin 0 selected */
#define PIN_MASK_1 ((uint8_t)(0x02)) /*!< Pin 1 selected */
#define PIN_MASK_2 ((uint8_t)(0x04)) /*!< Pin 2 selected */
#define PIN_MASK_3 ((uint8_t)(0x08)) /*!< Pin 3 selected */
#define PIN_MASK_4 ((uint8_t)(0x10)) /*!< Pin 4 selected */
#define PIN_MASK_5 ((uint8_t)(0x20)) /*!< Pin 5 selected */
#define PIN_MASK_6 ((uint8_t)(0x40)) /*!< Pin 6 selected */
#define PIN_MASK_7 ((uint8_t)(0x80)) /*!< Pin 7 selected */
/***********************************************************************************************************************
Global functions
***********************************************************************************************************************/
void GPIO_Output_Enable(__IO uint8_t *port, uint8_t pinMsk);
void GPIO_Input_Enable(__IO uint8_t *port, uint8_t pinMsk);
void GPIO_PullUp_Enable(__IO uint8_t *port, uint8_t pinMsk);
void GPIO_PullUp_Disable(__IO uint8_t *port, uint8_t pinMsk);
void GPIO_Nch_OpenDrain(__IO uint8_t *port, uint8_t pinMsk);
void GPIO_Ttl_Input(__IO uint8_t *port, uint8_t pinMsk);
void GPIO_Set_Value(__IO uint8_t *port, uint8_t value);
uint8_t GPIO_Get_Value(__IO uint8_t *port);
void PORT_Init(PORT_TypeDef PORTx,PIN_TypeDef PINx,PIN_ModeDef MODEx);
//void PORT_SetBit(PORT_TypeDef PORTx,PIN_TypeDef PINx);
//void PORT_ClrBit(PORT_TypeDef PORTx,PIN_TypeDef PINx);
//void PORT_ToggleBit(PORT_TypeDef PORTx,PIN_TypeDef PINx);
//uint8_t PORT_GetBit(PORT_TypeDef PORTx,PIN_TypeDef PINx);
/*****************************************************************************
** brief PORT_SetBit
**
** param [in] PORTx : PORT_TypeDef
** PINx: PIN_TypeDef
** return none
** note
*****************************************************************************/
#define PORT_SetBit(PORTx,PINx) do{
*((uint8_t*)((uint8_t*)&PORT->P0+PORTx)) |= (1<P0+PORTx)) &= ~(1<P0+PORTx)) ^= (1<P0+PORTx)) & (1<PMS = 0x01; /*!< Digital output level of the pin is read */
return (*port); /*!< PL = value */
}
/**
* @brief Initializes the PORTx
* [url=home.php?mod=space&uid=3142012]@param[/url] PORTx: where x can be 0~14
* @param PINx: where x can be 0~7
* @param MODEx: such as INPUT,PULLUP_INPUT,TTL_INPUT,ANALOG_INPUT,OUTPUT,OPENDRAIN_OUTPUT
*
* @retval None
*/
void PORT_Init(PORT_TypeDef PORTx,PIN_TypeDef PINx,PIN_ModeDef MODEx)
{
uint8_t mode = MODEx;
uint8_t pos = 1<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;
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;
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;
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;
}
}

复制代码

C文件很多函数不能应用头文件的宏

建议使用

PORT_Init这个函数，可以单独初始化GPIO引脚

#include
#include "BAT32G137.h"
#include "userdefine.h"
#include "gpio.h"
#include "sci.h"
/***********************************************************************************************************************
Global variables and functions
***********************************************************************************************************************/
/***********************************************************************************************************************
Global variables and functions
***********************************************************************************************************************/
volatile uint32_t g_ticks;
void delayMS(uint32_t n)
{
g_ticks = n;
while(g_ticks);
}
unsigned char key_scan(void)
{
// unsigned char key_val = 0;
if((PORT_GetBit(PORT7,PIN0) &0x01) == 0)
{
delayMS(5);
if((PORT_GetBit(PORT7,PIN0) &0x01) == 0)
{
while((PORT_GetBit(PORT7,PIN0) &0x01) == 0)
return 1;
}
}
return 0;
}
int main(void)
{
uint32_t msCnt; // count value of 1ms
unsigned char data_uart = 0;
//-----------------------------------------------------------------------
// Systick setting
//-----------------------------------------------------------------------
g_ticks = 1000; // 1000ms
SystemCoreClockUpdate();
msCnt = SystemCoreClock / 1000;
SysTick_Config(msCnt);
UART0_Init(SystemCoreClock, 115200);
PORT_Init(PORT7,PIN1,OUTPUT);
PORT_Init(PORT7,PIN2,OUTPUT);
PORT_Init(PORT7,PIN0,PULLUP_INPUT);
while(1)
{
//UART0_Receive
if(key_scan())
{
UART0_Send('a');
data_uart = UART0_Receive();
UART0_Send(data_uart);
delayMS(250);
PORT_SetBit(PORT7,PIN1);
delayMS(250);
PORT_ClrBit(PORT7,PIN1);
delayMS(250);
PORT_SetBit(PORT7,PIN2);
delayMS(250);
PORT_ClrBit(PORT7,PIN2);
}
}
}
/***********************************************************************************************************************
* Function Name: SysTick Handler
* Description : Decreament the g_ticks value
* Arguments : None
* Return Value : None
***********************************************************************************************************************/
void SysTick_Handler(void)
{
WDT->WDTE = 0xAC;
g_ticks--;
}

复制代码

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