119 lines
4.1 KiB
C
119 lines
4.1 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : GPIO.C
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* Author : WCH
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* Version : V1.0
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* Date : 2017/01/20
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* Description : CH554 IO 设置接口函数和GPIO中断函数
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*******************************************************************************/
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#include "..\Public\CH554.H"
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#include "..\Public\Debug.H"
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#include "GPIO.H"
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#include "stdio.h"
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#pragma NOAREGS
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/*******************************************************************************
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* Function Name : Port1Cfg()
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* Description : 端口1配置
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* Input : Mode 0 = 浮空输入，无上拉
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1 = 推挽输入输出
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2 = 开漏输入输出，无上拉
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3 = 类51模式，开漏输入输出，有上拉，内部电路可以加速由低到高的电平爬升
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,UINT8 Pin (0-7)
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* Output : None
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* Return : None
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*******************************************************************************/
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void Port1Cfg(UINT8 Mode,UINT8 Pin)
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{
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switch(Mode){
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case 0:
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P1_MOD_OC = P1_MOD_OC & ~(1<<Pin);
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P1_DIR_PU = P1_DIR_PU & ~(1<<Pin);
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break;
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case 1:
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P1_MOD_OC = P1_MOD_OC & ~(1<<Pin);
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P1_DIR_PU = P1_DIR_PU | (1<<Pin);
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break;
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case 2:
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P1_MOD_OC = P1_MOD_OC | (1<<Pin);
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P1_DIR_PU = P1_DIR_PU & ~(1<<Pin);
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break;
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case 3:
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P1_MOD_OC = P1_MOD_OC | (1<<Pin);
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P1_DIR_PU = P1_DIR_PU | (1<<Pin);
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break;
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default:
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break;
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}
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}
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/*******************************************************************************
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* Function Name : Port3Cfg()
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* Description : 端口3配置
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* Input : Mode 0 = 浮空输入，无上拉
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1 = 推挽输入输出
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2 = 开漏输入输出，无上拉
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3 = 类51模式，开漏输入输出，有上拉，内部电路可以加速由低到高的电平爬升
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,UINT8 Pin (0-7)
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* Output : None
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* Return : None
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*******************************************************************************/
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void Port3Cfg(UINT8 Mode,UINT8 Pin)
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{
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switch(Mode){
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case 0:
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P3_MOD_OC = P3_MOD_OC & ~(1<<Pin);
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P3_DIR_PU = P3_DIR_PU & ~(1<<Pin);
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break;
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case 1:
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P3_MOD_OC = P3_MOD_OC & ~(1<<Pin);
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P3_DIR_PU = P3_DIR_PU | (1<<Pin);
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break;
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case 2:
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P3_MOD_OC = P3_MOD_OC | (1<<Pin);
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P3_DIR_PU = P3_DIR_PU & ~(1<<Pin);
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break;
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case 3:
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P3_MOD_OC = P3_MOD_OC | (1<<Pin);
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P3_DIR_PU = P3_DIR_PU | (1<<Pin);
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break;
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default:
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break;
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}
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}
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/*******************************************************************************
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* Function Name : GPIOInterruptCfg()
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* Description : GPIO中断配置
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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void GPIOInterruptCfg()
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{
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GPIO_IE &= ~bIE_IO_EDGE; //高/低电平触发
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// GPIO_IE |= bIE_IO_EDGE; //上升/下降触发
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// GPIO_IE |= bIE_RXD1_LO; //RXD1低电平或下降沿触发
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GPIO_IE |= bIE_P1_5_LO | bIE_P1_4_LO | bIE_P1_3_LO | bIE_RST_HI;
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//P15\P14\P13低电平触发；RST高电平触发
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// GPIO_IE |= bIE_P3_1_LO; //P31低电平或下降沿触发
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// GPIO_IE |= bIE_RXD0_LO; //RXD0低电平或下降沿触发
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IE_GPIO = 1; //GPIO中断开启
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}
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#ifdef GPIO_INTERRUPT
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/*******************************************************************************
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* Function Name : GPIOInterrupt(void)
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* Description : GPIO 中断服务程序
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*******************************************************************************/
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void GPIOInterrupt( void ) interrupt INT_NO_GPIO using 1 //GPIO中断服务程序,使用寄存器组1
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{
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#ifdef DE_PRINTF
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printf("GPIO_STATUS: %02x\n",(UINT16)(PIN_FUNC&bIO_INT_ACT));
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#endif
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}
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#endif
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