MKL26初入上手

adersonl · 发表于 2015-10-5 19:57:36

这是我第一次用Freescale的片子，以前各大公司的芯片也用了不少，但是都是基于官方的固件库的，换到这块板子，有点摸不上头绪了。说说我的经历
第一我先去找了官方的库，发现有KSDK这个库，发现用的人不多，我看了下，貌似资料也不是很多，也就没多看。
第二找了第三方的库现在比较，各家有各家的特点肯些做的确实不错。
官方的KSDK我是想建一个不用KSDK的代码，一个干干净净的工程的，但是出了各种各种各种的问题，最后也没有解决，汇编上的问题，我看不懂，我试了各种编译器，GCC ，IAR，MDK，都没有成功，最后的那个工程是用KDS建了一个可以用的工程，然后用光盘中的汇编文件替换了原来的汇编文件，终于不报错程序也运行正常了，我是一个爱折腾的人~~

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然后我又开始折腾库了，各家的库都有各家的特点，找不找去，也没发现一个比较合我的库，各人感觉不一样，我是一个比较无聊的人，我这么感觉，之后开始自己写了，国庆什么的，到今天才真正的算是点亮了一个灯而已，各种模仿加抄袭，自己看了一下手册写了几个函数，毕竟板子在手上不能对社区没有一个交待，这么信任一个新手

#include "MKL26Z4.h"
#include "stdlib.h"
#define PORT_SHIFT 12
typedef enum {
PTA0 = 0x0,
PTA1 = 0x4,
PTA2 = 0x8,
PTA3 = 0xc,
PTA4 = 0x10,
PTA5 = 0x14,
PTA6 = 0x18,
PTA7 = 0x1c,
PTA8 = 0x20,
PTA9 = 0x24,
PTA10 = 0x28,
PTA11 = 0x2c,
PTA12 = 0x30,
PTA13 = 0x34,
PTA14 = 0x38,
PTA15 = 0x3c,
PTA16 = 0x40,
PTA17 = 0x44,
PTA18 = 0x48,
PTA19 = 0x4c,
PTA20 = 0x50,
PTA21 = 0x54,
PTA22 = 0x58,
PTA23 = 0x5c,
PTA24 = 0x60,
PTA25 = 0x64,
PTA26 = 0x68,
PTA27 = 0x6c,
PTA28 = 0x70,
PTA29 = 0x74,
PTA30 = 0x78,
PTA31 = 0x7c,
PTB0 = 0x1000,
PTB1 = 0x1004,
PTB2 = 0x1008,
PTB3 = 0x100c,
PTB4 = 0x1010,
PTB5 = 0x1014,
PTB6 = 0x1018,
PTB7 = 0x101c,
PTB8 = 0x1020,
PTB9 = 0x1024,
PTB10 = 0x1028,
PTB11 = 0x102c,
PTB12 = 0x1030,
PTB13 = 0x1034,
PTB14 = 0x1038,
PTB15 = 0x103c,
PTB16 = 0x1040,
PTB17 = 0x1044,
PTB18 = 0x1048,
PTB19 = 0x104c,
PTB20 = 0x1050,
PTB21 = 0x1054,
PTB22 = 0x1058,
PTB23 = 0x105c,
PTB24 = 0x1060,
PTB25 = 0x1064,
PTB26 = 0x1068,
PTB27 = 0x106c,
PTB28 = 0x1070,
PTB29 = 0x1074,
PTB30 = 0x1078,
PTB31 = 0x107c,
PTC0 = 0x2000,
PTC1 = 0x2004,
PTC2 = 0x2008,
PTC3 = 0x200c,
PTC4 = 0x2010,
PTC5 = 0x2014,
PTC6 = 0x2018,
PTC7 = 0x201c,
PTC8 = 0x2020,
PTC9 = 0x2024,
PTC10 = 0x2028,
PTC11 = 0x202c,
PTC12 = 0x2030,
PTC13 = 0x2034,
PTC14 = 0x2038,
PTC15 = 0x203c,
PTC16 = 0x2040,
PTC17 = 0x2044,
PTC18 = 0x2048,
PTC19 = 0x204c,
PTC20 = 0x2050,
PTC21 = 0x2054,
PTC22 = 0x2058,
PTC23 = 0x205c,
PTC24 = 0x2060,
PTC25 = 0x2064,
PTC26 = 0x2068,
PTC27 = 0x206c,
PTC28 = 0x2070,
PTC29 = 0x2074,
PTC30 = 0x2078,
PTC31 = 0x207c,
PTD0 = 0x3000,
PTD1 = 0x3004,
PTD2 = 0x3008,
PTD3 = 0x300c,
PTD4 = 0x3010,
PTD5 = 0x3014,
PTD6 = 0x3018,
PTD7 = 0x301c,
PTD8 = 0x3020,
PTD9 = 0x3024,
PTD10 = 0x3028,
PTD11 = 0x302c,
PTD12 = 0x3030,
PTD13 = 0x3034,
PTD14 = 0x3038,
PTD15 = 0x303c,
PTD16 = 0x3040,
PTD17 = 0x3044,
PTD18 = 0x3048,
PTD19 = 0x304c,
PTD20 = 0x3050,
PTD21 = 0x3054,
PTD22 = 0x3058,
PTD23 = 0x305c,
PTD24 = 0x3060,
PTD25 = 0x3064,
PTD26 = 0x3068,
PTD27 = 0x306c,
PTD28 = 0x3070,
PTD29 = 0x3074,
PTD30 = 0x3078,
PTD31 = 0x307c,
PTE0 = 0x4000,
PTE1 = 0x4004,
PTE2 = 0x4008,
PTE3 = 0x400c,
PTE4 = 0x4010,
PTE5 = 0x4014,
PTE6 = 0x4018,
PTE7 = 0x401c,
PTE8 = 0x4020,
PTE9 = 0x4024,
PTE10 = 0x4028,
PTE11 = 0x402c,
PTE12 = 0x4030,
PTE13 = 0x4034,
PTE14 = 0x4038,
PTE15 = 0x403c,
PTE16 = 0x4040,
PTE17 = 0x4044,
PTE18 = 0x4048,
PTE19 = 0x404c,
PTE20 = 0x4050,
PTE21 = 0x4054,
PTE22 = 0x4058,
PTE23 = 0x405c,
PTE24 = 0x4060,
PTE25 = 0x4064,
PTE26 = 0x4068,
PTE27 = 0x406c,
PTE28 = 0x4070,
PTE29 = 0x4074,
PTE30 = 0x4078,
PTE31 = 0x407c,
NC = (int)0xFFFFFFFF,
}PinName;
typedef struct {
PinName pin;
uint32_t mask;
__IO uint32_t *reg_dir;
__IO uint32_t *reg_set; //psor
__IO uint32_t *reg_clr;
__I uint32_t *reg_in;
} gpio_t;
typedef enum {
PullNone = 0,
PullUp = 2,
PullDefault = PullUp
} PinMode;
typedef enum {
PIN_INPUT,
PIN_OUTPUT
} PinDirection;
void myDelay (uint32_t ulTime)
{
uint32_t i;
i = 0;
while (ulTime--) {
for (i = 0; i < 5000; i++);
}
}
void Pin_Mode_Set(PinName pin, PinMode mode)
{
__IO uint32_t* pin_pcr = (__IO uint32_t*)(PORTA_BASE + pin);
*pin_pcr = (*pin_pcr & ~0x3) | mode;
}
void pin_function(PinName pin, int function, PinDirection dir)
{
__IO uint32_t* pin_pcr = 0;
uint32_t current_port = (uint32_t)pin >> PORT_SHIFT;
uint32_t current_pin = (uint32_t)(pin & 0x7c) >> 2;
FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + current_port * 0x40);
SIM->SCGC5 |= 1 << (SIM_SCGC5_PORTA_SHIFT + current_port);
pin_pcr = &((PORT_Type *)(PORTA_BASE + 0x1000 * current_port))->PCR[current_pin];
*pin_pcr = (*pin_pcr & ~0x700) | (function << 8);
switch(dir)
{
case PIN_INPUT:
reg->PDDR &= ~(1 << current_pin);
break;
case PIN_OUTPUT:
reg->PDDR |= 1 << current_pin;
break;
}
}
void Pin_Set(PinName pin)
{
uint32_t current_port = (uint32_t)pin >> PORT_SHIFT;
uint32_t current_pin = (uint32_t)(pin & 0x7c) >> 2;
FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + current_port *0x40);
reg->PSOR |= (1 << current_pin);
}
void Pin_clr(PinName pin)
{
uint32_t current_port = (uint32_t)pin >> PORT_SHIFT;
uint32_t current_pin = (uint32_t)(pin & 0x7c) >> 2;
FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + current_port *0x40);
reg->PCOR |= (1 << current_pin);
}
int main(void)
{
pin_function(PTB18, 1,PIN_OUTPUT);
Pin_Mode_Set(PTB18,PullUp);
// GPIO_Init();
while(1)
{
Pin_Set(PTB18);
myDelay(500);
Pin_clr(PTB18);
myDelay(500);
}
}