rt-thread-official/bsp/swm320/libraries/SWM320_StdPeriph_Driver/SWM320_port.c

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/******************************************************************************************************************************************
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* : SWM320_port.c
* : SWM320单片机的端口引脚功能选择库函数
* : http://www.synwit.com.cn/e/tool/gbook/?bid=1
* :
* : V1.1.0 20171025
* :
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*
*
*******************************************************************************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
* -ECTION WITH THEIR PRODUCTS.
*
* COPYRIGHT 2012 Synwit Technology
*******************************************************************************************************************************************/
#include "SWM320.h"
#include "SWM320_port.h"
/******************************************************************************************************************************************
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* : PORT_Init()
* : "SWM320_port.h"
* : uint32_t PORTx PORT端口PORTAPORTBPORTCPORTMPORTNPORTP
* uint32_t n PORT引脚PIN0PIN1PIN2... ... PIN22PIN23
* uint32_t func "SWM320_port.h"
* uint32_t digit_in_en 使
* :
* : n为偶数时func取值只能是FUNMUX0开头的FUNMUX0_UART0_RXD
* n为奇数时func取值只能是FUNMUX1开头的FUNMUX1_UART0_TXD
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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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switch ((uint32_t)PORTx)
{
case ((uint32_t)PORTA):
if (func > 99)
{
if (n < PIN6)
{
PORT->PORTA_MUX0 &= ~(0x1F << (n * 5));
PORT->PORTA_MUX0 |= (func - 100) << (n * 5);
}
else if (n < PIN12)
{
PORT->PORTA_MUX1 &= ~(0x1F << ((n - 6) * 5));
PORT->PORTA_MUX1 |= (func - 100) << ((n - 6) * 5);
}
}
PORT->PORTA_SEL &= ~(0x03 << (n * 2));
PORT->PORTA_SEL |= (func > 99 ? 1 : func) << (n * 2);
PORT->PORTA_INEN &= ~(0x01 << n);
PORT->PORTA_INEN |= (digit_in_en << n);
break;
case ((uint32_t)PORTB):
if (func > 99)
{
if (n < PIN6)
{
PORT->PORTB_MUX0 &= ~(0x1F << (n * 5));
PORT->PORTB_MUX0 |= (func - 100) << (n * 5);
}
else if (n < PIN12)
{
PORT->PORTB_MUX1 &= ~(0x1F << ((n - 6) * 5));
PORT->PORTB_MUX1 |= (func - 100) << ((n - 6) * 5);
}
}
PORT->PORTB_SEL &= ~(0x03 << (n * 2));
PORT->PORTB_SEL |= (func > 99 ? 1 : func) << (n * 2);
PORT->PORTB_INEN &= ~(0x01 << n);
PORT->PORTB_INEN |= (digit_in_en << n);
break;
case ((uint32_t)PORTC):
if (func > 99)
{
if (n < PIN6)
{
PORT->PORTC_MUX0 &= ~(0x1F << (n * 5));
PORT->PORTC_MUX0 |= (func - 100) << (n * 5);
}
else if (n < PIN12)
{
PORT->PORTC_MUX1 &= ~(0x1F << ((n - 6) * 5));
PORT->PORTC_MUX1 |= (func - 100) << ((n - 6) * 5);
}
}
PORT->PORTC_SEL &= ~(0x03 << (n * 2));
PORT->PORTC_SEL |= (func > 99 ? 1 : func) << (n * 2);
PORT->PORTC_INEN &= ~(0x01 << n);
PORT->PORTC_INEN |= (digit_in_en << n);
break;
case ((uint32_t)PORTM):
if (func > 99)
{
if (n < PIN6)
{
PORT->PORTM_MUX0 &= ~(0x1F << (n * 5));
PORT->PORTM_MUX0 |= (func - 100) << (n * 5);
}
else if (n < PIN12)
{
PORT->PORTM_MUX1 &= ~(0x1F << ((n - 6) * 5));
PORT->PORTM_MUX1 |= (func - 100) << ((n - 6) * 5);
}
else if (n < PIN18)
{
PORT->PORTM_MUX2 &= ~(0x1F << ((n - 12) * 5));
PORT->PORTM_MUX2 |= (func - 100) << ((n - 12) * 5);
}
else if (n < PIN24)
{
PORT->PORTM_MUX3 &= ~(0x1F << ((n - 18) * 5));
PORT->PORTM_MUX3 |= (func - 100) << ((n - 18) * 5);
}
}
if (n < 16)
{
PORT->PORTM_SEL0 &= ~(0x03 << (n * 2));
PORT->PORTM_SEL0 |= (func > 99 ? 1 : func) << (n * 2);
}
else
{
PORT->PORTM_SEL1 &= ~(0x03 << ((n - 16) * 2));
PORT->PORTM_SEL1 |= (func > 99 ? 1 : func) << ((n - 16) * 2);
}
PORT->PORTM_INEN &= ~(0x01 << n);
PORT->PORTM_INEN |= (digit_in_en << n);
break;
case ((uint32_t)PORTN):
if (func > 99)
{
if (n < PIN6)
{
PORT->PORTN_MUX0 &= ~(0x1F << (n * 5));
PORT->PORTN_MUX0 |= (func - 100) << (n * 5);
}
else if (n < PIN12)
{
PORT->PORTN_MUX1 &= ~(0x1F << ((n - 6) * 5));
PORT->PORTN_MUX1 |= (func - 100) << ((n - 6) * 5);
}
else if (n < PIN18)
{
PORT->PORTN_MUX2 &= ~(0x1F << ((n - 12) * 5));
PORT->PORTN_MUX2 |= (func - 100) << ((n - 12) * 5);
}
}
if (n < 16)
{
PORT->PORTN_SEL0 &= ~(0x03 << (n * 2));
PORT->PORTN_SEL0 |= (func > 99 ? 1 : func) << (n * 2);
}
else
{
PORT->PORTN_SEL1 &= ~(0x03 << ((n - 16) * 2));
PORT->PORTN_SEL1 |= (func > 99 ? 1 : func) << ((n - 16) * 2);
}
PORT->PORTN_INEN &= ~(0x01 << n);
PORT->PORTN_INEN |= (digit_in_en << n);
break;
case ((uint32_t)PORTP):
if (func > 99)
{
if (n < PIN6)
{
PORT->PORTP_MUX0 &= ~(0x1F << (n * 5));
PORT->PORTP_MUX0 |= (func - 100) << (n * 5);
}
else if (n < PIN12)
{
PORT->PORTP_MUX1 &= ~(0x1F << ((n - 6) * 5));
PORT->PORTP_MUX1 |= (func - 100) << ((n - 6) * 5);
}
else if (n < PIN18)
{
PORT->PORTP_MUX2 &= ~(0x1F << ((n - 12) * 5));
PORT->PORTP_MUX2 |= (func - 100) << ((n - 12) * 5);
}
else if (n < PIN24)
{
PORT->PORTP_MUX3 &= ~(0x1F << ((n - 18) * 5));
PORT->PORTP_MUX3 |= (func - 100) << ((n - 18) * 5);
}
}
if (n < 16)
{
PORT->PORTP_SEL0 &= ~(0x03 << (n * 2));
PORT->PORTP_SEL0 |= (func > 99 ? 1 : func) << (n * 2);
}
else
{
PORT->PORTP_SEL1 &= ~(0x03 << ((n - 16) * 2));
PORT->PORTP_SEL1 |= (func > 99 ? 1 : func) << ((n - 16) * 2);
}
PORT->PORTP_INEN &= ~(0x01 << n);
PORT->PORTP_INEN |= (digit_in_en << n);
break;
}
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}