222 lines
7.5 KiB
C
222 lines
7.5 KiB
C
/******************************************************************************************************************************************
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* 文件名称: SWM320_port.c
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* 功能说明: SWM320单片机的端口引脚功能选择库函数
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* 技术支持: http://www.synwit.com.cn/e/tool/gbook/?bid=1
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* 注意事项:
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* 版本日期: V1.1.0 2017年10月25日
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* 升级记录:
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*
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*
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*******************************************************************************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
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* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
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* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
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* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
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* -ECTION WITH THEIR PRODUCTS.
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*
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* COPYRIGHT 2012 Synwit Technology
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*******************************************************************************************************************************************/
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#include "SWM320.h"
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#include "SWM320_port.h"
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/******************************************************************************************************************************************
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* 函数名称: PORT_Init()
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* 功能说明: 端口引脚功能选择，可用的功能见"SWM320_port.h"文件
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* 输 入: uint32_t PORTx 指定PORT端口，有效值包括PORTA、PORTB、PORTC、PORTM、PORTN、PORTP
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* uint32_t n 指定PORT引脚，有效值包括PIN0、PIN1、PIN2、... ... PIN22、PIN23
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* uint32_t func 指定端口引脚要设定的功能，其可取值见"SWM320_port.h"文件
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* uint32_t digit_in_en 数字输入使能
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* 输 出: 无
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* 注意事项: 当引脚标号n为偶数时，func取值只能是FUNMUX0开头的，如FUNMUX0_UART0_RXD
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* 当引脚标号n为奇数时，func取值只能是FUNMUX1开头的，如FUNMUX1_UART0_TXD
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******************************************************************************************************************************************/
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void PORT_Init(uint32_t PORTx, uint32_t n, uint32_t func, uint32_t digit_in_en)
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{
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switch ((uint32_t)PORTx)
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{
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case ((uint32_t)PORTA):
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if (func > 99)
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{
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if (n < PIN6)
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{
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PORT->PORTA_MUX0 &= ~(0x1F << (n * 5));
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PORT->PORTA_MUX0 |= (func - 100) << (n * 5);
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}
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else if (n < PIN12)
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{
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PORT->PORTA_MUX1 &= ~(0x1F << ((n - 6) * 5));
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PORT->PORTA_MUX1 |= (func - 100) << ((n - 6) * 5);
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}
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}
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PORT->PORTA_SEL &= ~(0x03 << (n * 2));
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PORT->PORTA_SEL |= (func > 99 ? 1 : func) << (n * 2);
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PORT->PORTA_INEN &= ~(0x01 << n);
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PORT->PORTA_INEN |= (digit_in_en << n);
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break;
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case ((uint32_t)PORTB):
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if (func > 99)
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{
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if (n < PIN6)
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{
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PORT->PORTB_MUX0 &= ~(0x1F << (n * 5));
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PORT->PORTB_MUX0 |= (func - 100) << (n * 5);
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}
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else if (n < PIN12)
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{
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PORT->PORTB_MUX1 &= ~(0x1F << ((n - 6) * 5));
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PORT->PORTB_MUX1 |= (func - 100) << ((n - 6) * 5);
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}
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}
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PORT->PORTB_SEL &= ~(0x03 << (n * 2));
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PORT->PORTB_SEL |= (func > 99 ? 1 : func) << (n * 2);
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PORT->PORTB_INEN &= ~(0x01 << n);
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PORT->PORTB_INEN |= (digit_in_en << n);
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break;
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case ((uint32_t)PORTC):
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if (func > 99)
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{
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if (n < PIN6)
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{
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PORT->PORTC_MUX0 &= ~(0x1F << (n * 5));
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PORT->PORTC_MUX0 |= (func - 100) << (n * 5);
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}
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else if (n < PIN12)
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{
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PORT->PORTC_MUX1 &= ~(0x1F << ((n - 6) * 5));
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PORT->PORTC_MUX1 |= (func - 100) << ((n - 6) * 5);
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}
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}
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PORT->PORTC_SEL &= ~(0x03 << (n * 2));
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PORT->PORTC_SEL |= (func > 99 ? 1 : func) << (n * 2);
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PORT->PORTC_INEN &= ~(0x01 << n);
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PORT->PORTC_INEN |= (digit_in_en << n);
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break;
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case ((uint32_t)PORTM):
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if (func > 99)
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{
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if (n < PIN6)
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{
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PORT->PORTM_MUX0 &= ~(0x1F << (n * 5));
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PORT->PORTM_MUX0 |= (func - 100) << (n * 5);
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}
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else if (n < PIN12)
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{
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PORT->PORTM_MUX1 &= ~(0x1F << ((n - 6) * 5));
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PORT->PORTM_MUX1 |= (func - 100) << ((n - 6) * 5);
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}
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else if (n < PIN18)
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{
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PORT->PORTM_MUX2 &= ~(0x1F << ((n - 12) * 5));
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PORT->PORTM_MUX2 |= (func - 100) << ((n - 12) * 5);
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}
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else if (n < PIN24)
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{
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PORT->PORTM_MUX3 &= ~(0x1F << ((n - 18) * 5));
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PORT->PORTM_MUX3 |= (func - 100) << ((n - 18) * 5);
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}
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}
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if (n < 16)
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{
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PORT->PORTM_SEL0 &= ~(0x03 << (n * 2));
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PORT->PORTM_SEL0 |= (func > 99 ? 1 : func) << (n * 2);
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}
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else
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{
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PORT->PORTM_SEL1 &= ~(0x03 << ((n - 16) * 2));
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PORT->PORTM_SEL1 |= (func > 99 ? 1 : func) << ((n - 16) * 2);
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}
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PORT->PORTM_INEN &= ~(0x01 << n);
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PORT->PORTM_INEN |= (digit_in_en << n);
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break;
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case ((uint32_t)PORTN):
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if (func > 99)
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{
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if (n < PIN6)
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{
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PORT->PORTN_MUX0 &= ~(0x1F << (n * 5));
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PORT->PORTN_MUX0 |= (func - 100) << (n * 5);
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}
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else if (n < PIN12)
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{
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PORT->PORTN_MUX1 &= ~(0x1F << ((n - 6) * 5));
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PORT->PORTN_MUX1 |= (func - 100) << ((n - 6) * 5);
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}
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else if (n < PIN18)
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{
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PORT->PORTN_MUX2 &= ~(0x1F << ((n - 12) * 5));
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PORT->PORTN_MUX2 |= (func - 100) << ((n - 12) * 5);
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}
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}
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if (n < 16)
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{
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PORT->PORTN_SEL0 &= ~(0x03 << (n * 2));
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PORT->PORTN_SEL0 |= (func > 99 ? 1 : func) << (n * 2);
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}
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else
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{
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PORT->PORTN_SEL1 &= ~(0x03 << ((n - 16) * 2));
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PORT->PORTN_SEL1 |= (func > 99 ? 1 : func) << ((n - 16) * 2);
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}
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PORT->PORTN_INEN &= ~(0x01 << n);
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PORT->PORTN_INEN |= (digit_in_en << n);
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break;
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case ((uint32_t)PORTP):
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if (func > 99)
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{
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if (n < PIN6)
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{
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PORT->PORTP_MUX0 &= ~(0x1F << (n * 5));
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PORT->PORTP_MUX0 |= (func - 100) << (n * 5);
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}
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else if (n < PIN12)
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{
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PORT->PORTP_MUX1 &= ~(0x1F << ((n - 6) * 5));
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PORT->PORTP_MUX1 |= (func - 100) << ((n - 6) * 5);
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}
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else if (n < PIN18)
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{
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PORT->PORTP_MUX2 &= ~(0x1F << ((n - 12) * 5));
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PORT->PORTP_MUX2 |= (func - 100) << ((n - 12) * 5);
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}
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else if (n < PIN24)
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{
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PORT->PORTP_MUX3 &= ~(0x1F << ((n - 18) * 5));
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PORT->PORTP_MUX3 |= (func - 100) << ((n - 18) * 5);
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}
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}
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if (n < 16)
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{
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PORT->PORTP_SEL0 &= ~(0x03 << (n * 2));
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PORT->PORTP_SEL0 |= (func > 99 ? 1 : func) << (n * 2);
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}
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else
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{
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PORT->PORTP_SEL1 &= ~(0x03 << ((n - 16) * 2));
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PORT->PORTP_SEL1 |= (func > 99 ? 1 : func) << ((n - 16) * 2);
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}
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PORT->PORTP_INEN &= ~(0x01 << n);
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PORT->PORTP_INEN |= (digit_in_en << n);
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break;
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}
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}
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