【AT-START-F425测评】USART1+TIMER1+KEY+OLED

1万 · 2022-3-16 21:18

雅特力科技AT32F425系列超值型ARM® Cortex®-M4微控制器，高达96MHz的CPU运算速度与内建数字信号处理器(DSP)，最高可支持64KB闪存存储器(Flash)及20KB随机存取存储器(SRAM)，而系统存储器(4KB)除可作启动加载程序(Bootloader)外，也可一次性配置成一般用户程序和数据区，达到64+4KB的最大空间使用，片上还集成1个OTG控制器(设备模式支持无晶振Xtal-less)、1组CAN总线、4个USART、3个SPI/I²S(可组合全双工模式)、2个I²C、1个16位高级定时器、6个16位通用定时器、1个32位通用定时器、2个16位基本定时器，定时器可组合超过24路PWM独立信道，同时还扩展了1个采样率高达2Msps的12位16通道高速ADC，几乎所有I/O口可容忍5V输入信号，且具有多种端口重映射，超越业界同级USB OTG芯片。
一、串口1测试：
1.硬件连接：
TXD1-----PA9
RXD1-----PA10
2.软件部分代码：
波特率：115200

复制

//宏定义

#define PRINT_UART                       USART1

#define PRINT_UART_CRM_CLK               CRM_USART1_PERIPH_CLOCK

#define PRINT_UART_TX_PIN                GPIO_PINS_9

#define PRINT_UART_TX_GPIO               GPIOA

#define PRINT_UART_TX_GPIO_CRM_CLK       CRM_GPIOA_PERIPH_CLOCK

#define PRINT_UART_TX_PIN_SOURCE         GPIO_PINS_SOURCE9

#define PRINT_UART_TX_PIN_MUX_NUM        GPIO_MUX_1

//串口1初始化

void uart_print_init(uint32_t baudrate)

{

  gpio_init_type gpio_init_struct;



  /* enable the uart and gpio clock */

  crm_periph_clock_enable(PRINT_UART_CRM_CLK, TRUE);

  crm_periph_clock_enable(PRINT_UART_TX_GPIO_CRM_CLK, TRUE);



  gpio_default_para_init(&gpio_init_struct);



  /* configure the uart tx pin */

  gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;

  gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;

  gpio_init_struct.gpio_mode = GPIO_MODE_MUX;

  gpio_init_struct.gpio_pins = PRINT_UART_TX_PIN;

  gpio_init_struct.gpio_pull = GPIO_PULL_NONE;

  gpio_init(PRINT_UART_TX_GPIO, &gpio_init_struct);



  gpio_pin_mux_config(PRINT_UART_TX_GPIO, PRINT_UART_TX_PIN_SOURCE, PRINT_UART_TX_PIN_MUX_NUM); 



  /* configure uart param */

  usart_init(PRINT_UART, baudrate, USART_DATA_8BITS, USART_STOP_1_BIT);

  usart_transmitter_enable(PRINT_UART, TRUE);

  usart_enable(PRINT_UART, TRUE);

}

//重定向c库函数printf到串口1，重定向后可使用printf函数

PUTCHAR_PROTOTYPE

{

  while(usart_flag_get(PRINT_UART, USART_TDBE_FLAG) == RESET);

  usart_data_transmit(PRINT_UART, ch);

  return ch;

}

二、定时器1：
部分代码：

复制

//配置CLKOUT

void clkout_config(void)

{

  gpio_init_type gpio_init_struct;



  /* enable gpio port clock */

  crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);



  /* set default parameter */

  gpio_default_para_init(&gpio_init_struct);



  /* clkout gpio init */

  gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;

  gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;

  gpio_init_struct.gpio_pull = GPIO_PULL_NONE;

  gpio_init_struct.gpio_mode = GPIO_MODE_MUX;

  gpio_init_struct.gpio_pins = GPIO_PINS_8;

  gpio_init(GPIOA, &gpio_init_struct);



  /* config clkout division */

  crm_clkout_div_set(CRM_CLKOUT_DIV_1);



  /* config clkout clock */

  crm_clock_out_set(CRM_CLKOUT_PLL_DIV_4);

}

void TMR1_BRK_OVF_TRG_HALL_IRQHandler(void)//定时器中断服务函数

{

  if(tmr_flag_get(TMR1, TMR_OVF_FLAG) != RESET)

  {

    /* add user code... */

                at32_led_toggle(LED3);//LED3翻转

                at32_led_toggle(LED4);//LED4翻转

                printf("usart printf counter: %u\r\n",time_cnt++);

    tmr_flag_clear(TMR1, TMR_OVF_FLAG);

  }

}

三、GPIO模拟SPI驱动OLED屏显示（中景园SSD1306 0.96寸OLED）
1.硬件连接：
D0-----PB12
D1-----PB13
RES----PB14
DC-----PB15
CS------PC6
2. 软件部分：
oled.c

复制

#include "oled.h"

#include "stdlib.h"

#include "oledfont.h" 

//OLED的显存

//存放格式如下.

//[0]0 1 2 3 ... 127        

//[1]0 1 2 3 ... 127        

//[2]0 1 2 3 ... 127        

//[3]0 1 2 3 ... 127        

//[4]0 1 2 3 ... 127        

//[5]0 1 2 3 ... 127        

//[6]0 1 2 3 ... 127        

//[7]0 1 2 3 ... 127                            

//void delay_ms(unsigned int ms)

//{                         

//        unsigned int a;

//        while(ms)

//        {

//                a=1800;

//                while(a--);

//                ms--;

//        }

//        return;

//}



#if OLED_MODE==1

//向SSD1106写入一个字节。

//dat:要写入的数据/命令

//cmd:数据/命令标志 0,表示命令;1,表示数据;

void OLED_WR_Byte(unsigned char dat,unsigned char cmd)

{

        DATAOUT(dat);            

        if(cmd)

          OLED_DC_Set();

        else 

          OLED_DC_Clr();                   

        OLED_CS_Clr();

        OLED_WR_Clr();         

        OLED_WR_Set();

        OLED_CS_Set();          

        OLED_DC_Set();         

}                         

#else

//向SSD1106写入一个字节。

//dat:要写入的数据/命令

//cmd:数据/命令标志 0,表示命令;1,表示数据;

void OLED_WR_Byte(unsigned char dat,unsigned char cmd)

{        

        unsigned char i;                          

        if(cmd)

          OLED_DC_Set();

        else 

          OLED_DC_Clr();                  

        OLED_CS_Clr();

        for(i=0;i<8;i++)

        {                          

                OLED_SCLK_Clr();

                if(dat&0x80)

                   OLED_SDIN_Set();

                else 

                   OLED_SDIN_Clr();

                OLED_SCLK_Set();

                dat<<=1;   

        }                                                   

        OLED_CS_Set();

        OLED_DC_Set();             

} 

#endif



//反显函数

void OLED_ColorTurn(u8 i)

{

        if(i==0)

                {

                        OLED_WR_Byte(0xA6,OLED_CMD);//正常显示

                }

        if(i==1)

                {

                        OLED_WR_Byte(0xA7,OLED_CMD);//反色显示

                }

}



//屏幕旋转180度

void OLED_DisplayTurn(u8 i)

{

        if(i==0)

                {

                        OLED_WR_Byte(0xC8,OLED_CMD);//正常显示

                        OLED_WR_Byte(0xA1,OLED_CMD);

                }

        if(i==1)

                {

                        OLED_WR_Byte(0xC0,OLED_CMD);//反转显示

                        OLED_WR_Byte(0xA0,OLED_CMD);

                }

}



        void OLED_Set_Pos(unsigned char x, unsigned char y) 

{ 

        OLED_WR_Byte(0xb0+y,OLED_CMD);

        OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);

        OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD); 

}             

//开启OLED显示    

void OLED_Display_On(void)

{

        OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令

        OLED_WR_Byte(0X14,OLED_CMD);  //DCDC ON

        OLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON

}

//关闭OLED显示     

void OLED_Display_Off(void)

{

        OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令

        OLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFF

        OLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF

}                                            

//清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!          

void OLED_Clear(void)  

{  

        unsigned char i,n;                    

        for(i=0;i<8;i++)  

        {  

                OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）

                OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址

                OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址   

                for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA); 

        } //更新显示

}





//在指定位置显示一个字符,包括部分字符

//x:0~127

//y:0~63

//mode:0,反白显示;1,正常显示                                 

//size:选择字体 16/12 

void OLED_ShowChar(unsigned char x,unsigned char y,unsigned char chr)

{              

        unsigned char c=0,i=0;        

                c=chr-' ';//得到偏移后的值                        

                if(x>Max_Column-1){x=0;y=y+2;}

                if(SIZE ==16)

                        {

                        OLED_Set_Pos(x,y);        

                        for(i=0;i<8;i++)

                        OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);

                        OLED_Set_Pos(x,y+1);

                        for(i=0;i<8;i++)

                        OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);

                        }

                        else {        

                                OLED_Set_Pos(x,y+1);

                                for(i=0;i<6;i++)

                                OLED_WR_Byte(F6x8[c][i],OLED_DATA);

                                

                        }

}

//m^n函数

unsigned int oled_pow(unsigned char m,unsigned char n)

{

        unsigned int result=1;         

        while(n--)result*=m;    

        return result;

}                                  

//显示2个数字

//x,y :起点坐标         

//len :数字的位数

//size:字体大小

//mode:模式        0,填充模式;1,叠加模式

//num:数值(0~4294967295);                           

void OLED_ShowNum(unsigned char x,unsigned char y,unsigned int num,unsigned char len,unsigned char size)

{                 

        unsigned char t,temp;

        unsigned char enshow=0;                                                   

        for(t=0;t<len;t++)

        {

                temp=(num/oled_pow(10,len-t-1))%10;

                if(enshow==0&&t<(len-1))

                {

                        if(temp==0)

                        {

                                OLED_ShowChar(x+(size/2)*t,y,' ');

                                continue;

                        }else enshow=1; 

                          

                }

                 OLED_ShowChar(x+(size/2)*t,y,temp+'0'); 

        }

} 

//显示一个字符号串

void OLED_ShowString(unsigned char x,unsigned char y,unsigned char *chr)

{

        unsigned char j=0;

        while (chr[j]!='\0')

        {                OLED_ShowChar(x,y,chr[j]);

                        x+=8;

                if(x>120){x=0;y+=2;}

                        j++;

        }

}

//显示汉字

void OLED_ShowCHinese(unsigned char x,unsigned char y,unsigned char no)

{                                  

        unsigned char t,adder=0;

        OLED_Set_Pos(x,y);        

    for(t=0;t<16;t++)

                {

                                OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);

                                adder+=1;

     }        

                OLED_Set_Pos(x,y+1);        

    for(t=0;t<16;t++)

                        {        

                                OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);

                                adder+=1;

      }                                        

}

/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/

void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])

{         

 unsigned int j=0;

 unsigned char x,y;

  

  if(y1%8==0) y=y1/8;      

  else y=y1/8+1;

        for(y=y0;y<y1;y++)

        {

                OLED_Set_Pos(x0,y);

    for(x=x0;x<x1;x++)

            {      

                    OLED_WR_Byte(BMP[j++],OLED_DATA);                    

            }

        }

} 





//初始化SSD1306                                            

void OLED_Init(void)

{          

  OLED_RST_Set();

        delay_ms(100);

        OLED_RST_Clr();

        delay_ms(200);

        OLED_RST_Set(); 

                                          

        OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel

        OLED_WR_Byte(0x00,OLED_CMD);//---set low column address

        OLED_WR_Byte(0x10,OLED_CMD);//---set high column address

        OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)

        OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register

        OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness

        OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping     0xa0左右反置 0xa1正常

        OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction   0xc0上下反置 0xc8正常

        OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display

        OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)

        OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty

        OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset        Shift Mapping RAM Counter (0x00~0x3F)

        OLED_WR_Byte(0x00,OLED_CMD);//-not offset

        OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency

        OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec

        OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period

        OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock

        OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration

        OLED_WR_Byte(0x12,OLED_CMD);

        OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh

        OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level

        OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)

        OLED_WR_Byte(0x02,OLED_CMD);//

        OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable

        OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable

        OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)

        OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7) 

        OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel

        

        OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/ 

        OLED_Clear();

        OLED_Set_Pos(0,0);         

}

oled.h

复制

#ifndef __OLED_H

#define __OLED_H





#include "at32f425_board.h"                   

 

#define  u8 unsigned char 

#define  u16 unsigned int

#define  u32 unsigned int

        

//OLED模式设置

//0:4线串行模式

//1:并行8080模式

#define OLED_MODE 0

#define SIZE 16

#define XLevelL                0x00

#define XLevelH                0x10

#define Max_Column        128

#define Max_Row                64

#define        Brightness        0xFF 

#define X_WIDTH         128

#define Y_WIDTH         64         



#define OLED_CMD  0        //写命令

#define OLED_DATA 1        //写数据



//-----------------OLED端口定义----------------

#define OLED_SCLK_Clr() gpio_bits_reset(GPIOB,GPIO_PINS_12)//CLK GPIO_PINS_0

#define OLED_SCLK_Set() gpio_bits_set(GPIOB,GPIO_PINS_12)



#define OLED_SDIN_Clr() gpio_bits_reset(GPIOB,GPIO_PINS_13)//DIN

#define OLED_SDIN_Set() gpio_bits_set(GPIOB,GPIO_PINS_13)



#define OLED_RST_Clr() gpio_bits_reset(GPIOB,GPIO_PINS_14)//RES

#define OLED_RST_Set() gpio_bits_set(GPIOB,GPIO_PINS_14)



#define OLED_DC_Clr() gpio_bits_reset(GPIOB,GPIO_PINS_15)//DC

#define OLED_DC_Set() gpio_bits_set(GPIOB,GPIO_PINS_15)

                      

#define OLED_CS_Clr()  gpio_bits_reset(GPIOC,GPIO_PINS_6)//CS

#define OLED_CS_Set()  gpio_bits_set(GPIOC,GPIO_PINS_6)





//OLED控制用函数

//void delay_ms(unsigned int ms);

void OLED_ColorTurn(u8 i);

void OLED_DisplayTurn(u8 i);

void OLED_Clear(void);

void OLED_ShowChar(unsigned char x,unsigned char y,unsigned char chr);

void OLED_ShowNum(unsigned char x,unsigned char y,unsigned int num,unsigned char len,unsigned char size);

void OLED_ShowString(unsigned char x,unsigned char y,unsigned char *chr);

void OLED_ShowCHinese(unsigned char x,unsigned char y,unsigned char no);

void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);

void OLED_Init(void);



#endif

oledfont.h

复制

#ifndef __OLEDFONT_H

#define __OLEDFONT_H            

//常用ASCII表

//偏移量32

//ASCII字符集

//偏移量32

//大小:12*6

/************************************6*8的点阵************************************/

const unsigned char F6x8[][6] =                

{

0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp

0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !

0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "

0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #

0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $

0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %

0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &

0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '

0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (

0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )

0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *

0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +

0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,

0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -

0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .

0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /

0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0

0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1

0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2

0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3

0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4

0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5

0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6

0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7

0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8

0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9

0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :

0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;

0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <

0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =

0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >

0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?

0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @

0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A

0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B

0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C

0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D

0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E

0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F

0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G

0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H

0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I

0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J

0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K

0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L

0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M

0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N

0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O

0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P

0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q

0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R

0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S

0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T

0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U

0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V

0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W

0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X

0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y

0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z

0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [

0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55

0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]

0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^

0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _

0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '

0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a

0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b

0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c

0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d

0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e

0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f

0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g

0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h

0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i

0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j

0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k

0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l

0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m

0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n

0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o

0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p

0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q

0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r

0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s

0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t

0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u

0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v

0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w

0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x

0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y

0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z

0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines

};

/****************************************8*16的点阵************************************/

const unsigned char F8X16[]=          

{

  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0

  0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1

  0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2

  0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3

  0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4

  0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5

  0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6

  0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7

  0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8

  0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9

  0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10

  0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11

  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12

  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13

  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14

  0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15

  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16

  0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17

  0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18

  0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19

  0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20

  0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21

  0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22

  0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23

  0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24

  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25

  0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26

  0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27

  0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28

  0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29

  0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30

  0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31

  0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//[url=home.php?mod=space&uid=72445]@[/url] 32

  0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33

  0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34

  0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35

  0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36

  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37

  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38

  0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39

  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40

  0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41

  0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42

  0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43

  0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44

  0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45

  0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46

  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47

  0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48

  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49

  0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50

  0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51

  0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52

  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53

  0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54

  0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55

  0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56

  0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57

  0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58

  0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59

  0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60

  0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61

  0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62

  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63

  0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64

  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65

  0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66

  0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67

  0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68

  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69

  0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70

  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71

  0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72

  0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73

  0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74

  0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75

  0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76

  0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77

  0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78

  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79

  0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80

  0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81

  0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82

  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83

  0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84

  0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85

  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86

  0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87

  0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88

  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89

  0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90

  0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91

  0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92

  0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93

  0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94

};

char Hzk[][32]={



{0x00,0x04,0xF4,0x84,0x84,0xFC,0xE4,0x30,0xFC,0x92,0x90,0xF6,0x94,0x90,0x10,0x00},

{0x00,0x20,0x18,0x46,0x41,0x7F,0x00,0x00,0xFF,0x24,0x24,0x3F,0x24,0x24,0x20,0x00},/*"雅",0*/



{0x00,0xF8,0x28,0x20,0xFE,0x20,0x20,0x48,0x48,0x48,0x7E,0x48,0xC8,0x48,0x48,0x00},

{0x00,0x04,0x04,0x02,0xFF,0x02,0x02,0x02,0x1A,0x12,0x42,0xC2,0x7F,0x02,0x02,0x00},/*"特",1*/



{0x00,0x00,0x20,0x20,0x20,0x20,0x20,0xFE,0x20,0x20,0x20,0x20,0x20,0xE0,0x20,0x00},

{0x00,0x40,0xC0,0x60,0x30,0x18,0x0F,0x03,0x00,0x00,0x40,0x40,0x60,0x3F,0x00,0x00},/*"力",2*/



{0x00,0x80,0x84,0x84,0x84,0xFC,0xFC,0x84,0x84,0x84,0xFC,0x84,0x84,0x84,0x80,0x00},

{0x00,0x41,0x41,0x61,0x31,0x1F,0x03,0x01,0x01,0x01,0x7F,0x01,0x01,0x01,0x01,0x00},/*"开",3*/



{0x00,0x00,0x20,0x3C,0x24,0x20,0xE0,0x3E,0x20,0x20,0x24,0x3C,0x28,0x20,0x20,0x00},

{0x00,0x10,0x10,0x48,0xC6,0x43,0x47,0x2D,0x39,0x31,0x29,0x47,0x43,0x40,0x40,0x00},/*"发",4*/



{0x00,0x20,0x20,0xFE,0x20,0x20,0x00,0xFC,0x24,0xE4,0x24,0x24,0x24,0xE4,0x04,0x00},

{0x00,0x0C,0x03,0xFF,0x01,0x43,0x72,0x9F,0xC0,0x63,0x3E,0x18,0x27,0x61,0x40,0x00},/*"板",5*/





};



#endif

四、KEY : PA0 高电平有效

复制

//获取按键状态

uint8_t at32_button_state(void)

{

  return gpio_input_data_bit_read(USER_BUTTON_PORT, USER_BUTTON_PIN);

}

五、主函数：

复制

int main(void)

{

  system_clock_config();

  at32_board_init();

  uart_print_init(115200);

        

        /* get system clock */

  crm_clocks_freq_get(&crm_clocks_freq_struct);



  /* turn led2/led3/led4 on */

  at32_led_off(LED2);

  at32_led_off(LED3);

  at32_led_off(LED4);

        



  /* enable tmr1 clock */

  crm_periph_clock_enable(CRM_TMR1_PERIPH_CLOCK, TRUE);



  /* tmr1 configuration */

  /* time base configuration */

  /* systemclock/12000/10000 = 1hz */

  tmr_base_init(TMR1, 4999, (crm_clocks_freq_struct.ahb_freq / 10000) - 1);//定时500ms

  tmr_cnt_dir_set(TMR1, TMR_COUNT_UP);



  /* overflow interrupt enable */

  tmr_interrupt_enable(TMR1, TMR_OVF_INT, TRUE);



  /* tmr1 overflow interrupt nvic init */

  nvic_priority_group_config(NVIC_PRIORITY_GROUP_4);

  nvic_irq_enable(TMR1_BRK_OVF_TRG_HALL_IRQn, 0, 0);



  /* enable tmr1 */

  tmr_counter_enable(TMR1, TRUE);

  clkout_config();

        

        OLED_GPIO_Init();

        OLED_Init();



  /* output a message on hyperterminal using printf function */

  printf("usart printf example: retarget the c library printf function to the usart\r\n");

        OLED_Clear();

        OLED_ShowCHinese(0,0,0);//雅

        OLED_ShowCHinese(18,0,1);//特

        OLED_ShowCHinese(36,0,2);//力

        OLED_ShowCHinese(54,0,3);//开

        OLED_ShowCHinese(72,0,4);//发

        OLED_ShowCHinese(90,0,5);//板

        OLED_ShowString(3,3,(u8*)"AT-START-F425");        

        OLED_ShowString(3,5,(u8*)"21ic-strang");        

  while(1)

  {

                if(at32_button_state()==1)//按下用户按键时，LED2亮

                {

                        at32_led_on(LED2);

                        printf("Button press down !\r\n");

                        delay_ms(500);

                }

                else//用户按键弹起时，LED2灭

                {

                        at32_led_off(LED2);                        

                }

  }

}

OLED显示效果

串口1发送的数据：

【AT-START-F425测评】USART1+TIMER1+KEY+OLED

突出贡献奖章

沉静之湖泊

十世金身

技术导师奖章