#pragma once
#define __I volatile
#define __O volatile
#define __IO volatile
typedef signed char int8_t;
typedef signed short int int16_t;
typedef signed int int32_t;
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;
typedef signed char s8;
typedef signed short int s16;
typedef signed int s32;
typedef signed long long int s64;
typedef unsigned char u8;
typedef unsigned short int u16;
typedef unsigned int u32;
typedef unsigned long long int u64;
移植文件
需要移植的文件fsl_common.h、fsl_iomuxc.h、MCIMX6Y2.h
主函数
#include "fsl_common.h"
#include "fsl_iomuxc.h"
#include "MCIMX6Y2.h"
void clk_enable(void)
{
CCM->CCGR0 = 0XFFFFFFFF;
CCM->CCGR1 = 0XFFFFFFFF;
CCM->CCGR2 = 0XFFFFFFFF;
CCM->CCGR3 = 0XFFFFFFFF;
CCM->CCGR4 = 0XFFFFFFFF;
CCM->CCGR5 = 0XFFFFFFFF;
CCM->CCGR6 = 0XFFFFFFFF;
}
void led_init(void)
{
/* 1、初始化IO复用 */
IOMUXC_SetPinMux(IOMUXC_GPIO1_IO03_GPIO1_IO03,0); // 设置IO复用功能
/* 2、、配置GPIO1_IO03的IO属性
*bit 16:0 HYS关闭
*bit [15:14]: 00 默认下拉
*bit [13]: 0 kepper功能
*bit [12]: 1 pull/keeper使能
*bit [11]: 0 关闭开路输出
*bit [7:6]: 10 速度100Mhz
*bit [5:3]: 110 R0/6驱动能力
*bit [0]: 0 低转换率
*/
IOMUXC_SetPinConfig(IOMUXC_GPIO1_IO03_GPIO1_IO03,0X10B0); // 设置IO的上下拉、电阻等
// 该函数第一个参数是IO配置寄存器,如果要复用为GPIO,就是IO03,第二个参数是要写入寄存器的值
/* 3、初始化GPIO,设置GPIO1_IO03设置为输出 */
GPIO1->GDIR |= (1 << 3);
/* 4、设置GPIO1_IO03输出低电平,打开LED0 */
GPIO1->DR &= ~(1 << 3);
}
void led_on(void)
{
/* 将GPIO1_DR的bit3清零 */
GPIO1->DR &= ~(1<<3);
}
void led_off(void)
{
/* 将GPIO1_DR的bit3置1 */
GPIO1->DR |= (1<<3);
}
void delay_short(volatile unsigned int n)
{
while(n--){}
}
void delay(volatile unsigned int n)
{
while(n--)
{
delay_short(0x7ff);
}
}
int main(void)
{
clk_enable();
led_init();
while(1)
{
led_off();
delay(500);
led_on();
delay(500);
}
return 0;
}