TM4C123 GXL库+MAX7219点阵C语言驱动

ID:950171 · 发表于 2021-7-24 21:44

#ifndef __U_MAX7219_H__
#define __U_MAX7219_H__

/*Include==================================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/rom.h"
#include "driverlib/sysctl.h"
/*Define===================================================================================*/

/*Port----------------------------------------*/
#define Max7219_pinCS_H()       GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_1,GPIO_PIN_1)
#define Max7219_pinCS_L()       GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_1,0)

#define Max7219_pinCLK_H()       GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_2,GPIO_PIN_2)
#define Max7219_pinCLK_L()       GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_2,0)

#define Max7219_pinDIN_H()       GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_3,GPIO_PIN_3)
#define Max7219_pinDIN_L()       GPIOPinWrite(GPIO_PORTD_BASE,GPIO_PIN_3,0)

/*Function=================================================================================*/
void Write_Max7219_byte(uint8_t DATA);
void Write_Max7219(uint8_t address,uint8_t dat);
void Init_MAX7219(void);
void U_8X8_Lattice_Show_Byte(uint8_t addres,uint8_t byteData);
void U_8X8_Lattice_Show_Icon(uint8_t *icon);

#endif /*__U_MAX7219_H__*/

#include "U_MAX7219.h"

void Write_Max7219_byte       /*向MAX7219传输1Byte*/
(
      uint8_t DATA             /*1Byte数据*/
)
{
      uint8_t i;
      Max7219_pinCS_L();

      for(i=8;i>=1;i--)
      {
            Max7219_pinCLK_L();

            if(DATA & 0x80)
            {
                     Max7219_pinDIN_H();
            }
            else
            {
                     Max7219_pinDIN_L();
            }
            DATA=DATA<<1;
            Max7219_pinCLK_H();
         }
}

void Write_Max7219                                     /*向MAX7219的寄存器写入数据*/
(
      uint8_t address,                               /*MAX7219的寄存器地址*/
      uint8_t dat                                              /*要写入的内容*/
)
{
   Max7219_pinCS_L();
      Write_Max7219_byte(address);       //写入地址，即数码管编号
   Write_Max7219_byte(dat);          //写入数据，即数码管显示数字
      Max7219_pinCS_H();
}

void Init_MAX7219(void)                               /*MAX7219初始化*/
{
      uint32_t i;
      Write_Max7219(0x09, 0x00);             //译码方式：BCD码
      Write_Max7219(0x0a, 0x02);             //亮度
      Write_Max7219(0x0b, 0x07);             //扫描界限；8个数码管显示
      Write_Max7219(0x0c, 0x01);             //掉电模式：0，普通模式：1
      Write_Max7219(0x0f, 0x00);             //显示测试：1；测试结束，正常显示：0

      /*清空MAX7219数据寄存器*/
      for(i=1;i<9;i++)
      {
            Write_Max7219(i,0x00);
      }
}

void U_8X8_Lattice_Show_Byte(uint8_t addres,uint8_t byteData)
{

      if((byteData & 0x01) == 1)
      {
            byteData = byteData ;
            byteData |= 0x80;
      }
      else
      {
            byteData = byteData ;
      }
      Write_Max7219(addres,byteData);
}

void U_8X8_Lattice_Show_Icon(uint8_t *icon)
{
      uint32_t i;
      for(i=1;i<9;i++)
      {
            U_8X8_Lattice_Show_Byte(i,icon[i-1]);
      }
}

#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/rom.h"
#include "driverlib/sysctl.h"

#include "U_MAX7219.h"

uint32_t systemClock;

uint8_t disl[14][8]=
{
{0x00,0x08,0x14,0x28,0x28,0x14,0x08,0x00},
{0x08,0x14,0x22,0x44,0x44,0x22,0x14,0x08},
{0x1E,0x3F,0x7F,0xFE,0xFE,0x7F,0x3F,0x1E},
{0x00,0x1E,0x20,0x3C,0x3C,0x20,0x1E,0x00},
{0x00,0x42,0x24,0x18,0x18,0x24,0x42,0x00},
{0x00,0x00,0x02,0x04,0x78,0x04,0x02,0x00},
{0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00},
{0x00,0x00,0x18,0x3C,0x3C,0x18,0x00,0x00},
{0x00,0x18,0x3C,0x7C,0x7C,0x3C,0x18,0x00},
{0x0C,0x1E,0x3E,0x7C,0x7C,0x3E,0x1E,0x0C},
{0x0C,0x1E,0x3E,0x7C,0x7C,0x3E,0x1E,0x0C},
{0x00,0x00,0x3E,0x08,0x08,0x3E,0x00,0x00},
{0x00,0x00,0x12,0x22,0x3E,0x02,0x02,0x00},
{0x00,0x42,0x24,0x18,0x18,0x24,0x42,0x00},
};

//*****************************************************************************
//
//! \addtogroup example_list
//! <h1>Simple Project (project)</h1>
//!
//! A very simple example that can be used as a starting point for more complex
//! projects.  Most notably, this project is fully TI BSD licensed, so any and
//! all of the code (including the startup code) can be used as allowed by that
//! license.
//!
//! The provided code simply toggles a GPIO using the Tiva Peripheral Driver
//! Library.
//
//*****************************************************************************

//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************

//*****************************************************************************
//
// Toggle a GPIO.
//
//*****************************************************************************

void U_GPIO_Init(void)
{
         SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
   SysCtlDelay(1);


            GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE,GPIO_PIN_1);
            GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE,GPIO_PIN_3);
            GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE,GPIO_PIN_2);
}

int main(void)
{

      uint8_t n;
      U_GPIO_Init();

      SysCtlDelay(5000000);

      U_GPIO_Init();
      Init_MAX7219();
      U_8X8_Lattice_Show_Icon(displ[10]);

while(1)
{

      for(n=0;n<14;n++)
      {
                           U_8X8_Lattice_Show_Icon(disl[n]);
                           SysCtlDelay(5000000);
      }

   }
}

这2个C语言文件下载:

TI-MAX7219.rar (3.09 KB, 下载次数: 7)

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TM4C123 GXL库+MAX7219点阵C语言驱动

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