90 lines
4.7 KiB
C
90 lines
4.7 KiB
C
/*---------------------------------------------------------------------*/
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/* --- STC MCU Limited ------------------------------------------------*/
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/* --- STC 1T Series MCU Demo Programme -------------------------------*/
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/* --- Mobile: (86)13922805190 ----------------------------------------*/
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/* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/
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/* --- Tel: 86-0513-55012928,55012929,55012966 ------------------------*/
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/* --- Web: www.STCMCU.com --------------------------------------------*/
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/* --- Web: www.STCMCUDATA.com ---------------------------------------*/
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/* --- QQ: 800003751 -------------------------------------------------*/
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/* 如果要在程序中使用此代码,请在程序中注明使用了STC的资料及程序 */
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/*---------------------------------------------------------------------*/
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/*************** 功能说明 ****************
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本文件为STC8系列的端口初始化程序,用户几乎可以不修改这个程序.
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******************************************/
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#include "GPIO.h"
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//========================================================================
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// 函数: u8 GPIO_Inilize(u8 GPIO, GPIO_InitTypeDef *GPIOx)
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// 描述: 初始化IO口.
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// 参数: GPIOx: 结构参数,请参考timer.h里的定义.
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// 返回: 成功返回0, 空操作返回1,错误返回2.
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// 版本: V1.0, 2012-10-22
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//========================================================================
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u8 GPIO_Inilize(u8 GPIO, GPIO_InitTypeDef *GPIOx)
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{
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if(GPIO > GPIO_P7) return 1; //空操作
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if(GPIOx->Mode > GPIO_OUT_PP) return 2; //错误
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if(GPIO == GPIO_P0)
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{
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if(GPIOx->Mode == GPIO_PullUp) P0M1 &= ~GPIOx->Pin, P0M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P0M1 |= GPIOx->Pin, P0M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P0M1 |= GPIOx->Pin, P0M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P0M1 &= ~GPIOx->Pin, P0M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P1)
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{
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if(GPIOx->Mode == GPIO_PullUp) P1M1 &= ~GPIOx->Pin, P1M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P1M1 |= GPIOx->Pin, P1M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P1M1 |= GPIOx->Pin, P1M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P1M1 &= ~GPIOx->Pin, P1M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P2)
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{
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if(GPIOx->Mode == GPIO_PullUp) P2M1 &= ~GPIOx->Pin, P2M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P2M1 |= GPIOx->Pin, P2M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P2M1 |= GPIOx->Pin, P2M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P2M1 &= ~GPIOx->Pin, P2M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P3)
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{
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if(GPIOx->Mode == GPIO_PullUp) P3M1 &= ~GPIOx->Pin, P3M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P3M1 |= GPIOx->Pin, P3M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P3M1 |= GPIOx->Pin, P3M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P3M1 &= ~GPIOx->Pin, P3M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P4)
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{
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if(GPIOx->Mode == GPIO_PullUp) P4M1 &= ~GPIOx->Pin, P4M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P4M1 |= GPIOx->Pin, P4M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P4M1 |= GPIOx->Pin, P4M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P4M1 &= ~GPIOx->Pin, P4M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P5)
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{
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if(GPIOx->Mode == GPIO_PullUp) P5M1 &= ~GPIOx->Pin, P5M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P5M1 |= GPIOx->Pin, P5M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P5M1 |= GPIOx->Pin, P5M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P5M1 &= ~GPIOx->Pin, P5M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P6)
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{
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if(GPIOx->Mode == GPIO_PullUp) P6M1 &= ~GPIOx->Pin, P6M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P6M1 |= GPIOx->Pin, P6M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P6M1 |= GPIOx->Pin, P6M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P6M1 &= ~GPIOx->Pin, P6M0 |= GPIOx->Pin; //推挽输出
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}
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if(GPIO == GPIO_P7)
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{
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if(GPIOx->Mode == GPIO_PullUp) P7M1 &= ~GPIOx->Pin, P7M0 &= ~GPIOx->Pin; //上拉准双向口
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if(GPIOx->Mode == GPIO_HighZ) P7M1 |= GPIOx->Pin, P7M0 &= ~GPIOx->Pin; //浮空输入
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if(GPIOx->Mode == GPIO_OUT_OD) P7M1 |= GPIOx->Pin, P7M0 |= GPIOx->Pin; //开漏输出
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if(GPIOx->Mode == GPIO_OUT_PP) P7M1 &= ~GPIOx->Pin, P7M0 |= GPIOx->Pin; //推挽输出
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}
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return 0; //成功
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}
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