STM32驱动GDEW042Z15电子墨水屏源程序

2018-7-2 06:57:34 5929 STM32 电子墨水屏

因为项目需求，最近一直在研究GDEW042Z15电子墨水屏幕。
电子墨水屏即为使用电子墨水的屏幕。电子墨水屏又被称为电子纸显示技术。
电子墨水是一种革新信息显示的新方法和技术。像多数传统墨水一样，电子墨水和改变它颜色的线路是可以打印到许多表面的，从弯曲塑料、聚脂膜、纸到布。和传统纸差异是电子墨水在通电时改变颜色，并且可以显示变化的图象，像计算器或手机那样的显示。
再驱动屏幕时使用了STM32芯片，可以驱动屏幕进行切换图片，高速刷新等功能。

单片机源程序如下:

/*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "24cxx.h"
#include "sys.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void GPIO_Configuration(void);
void uart_init(u32 bound);
void LED_Init(void);
void EEPROM_PLAY(void);
void EEPROM_Display(void);
void EPPROM_READ(void);
#define SDA_H GPIO_SetBits(GPIOD, GPIO_Pin_10); //PD.10
#define SDA_L GPIO_ResetBits(GPIOD, GPIO_Pin_10); //PD.10
#define SCLK_H GPIO_SetBits(GPIOD, GPIO_Pin_9); //PD.9
#define SCLK_L GPIO_ResetBits(GPIOD, GPIO_Pin_9);
#define nCS_H GPIO_SetBits(GPIOD, GPIO_Pin_8); //PD.8
#define nCS_L GPIO_ResetBits(GPIOD, GPIO_Pin_8);
#define nDC_H GPIO_SetBits(GPIOE, GPIO_Pin_15); //PE.15
#define nDC_L GPIO_ResetBits(GPIOE, GPIO_Pin_15);
#define nRST_H GPIO_SetBits(GPIOE, GPIO_Pin_14); //PE.14
#define nRST_L GPIO_ResetBits(GPIOE, GPIO_Pin_14);
#define nBUSY GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_13) //PE.13
#define nBS_H GPIO_SetBits(GPIOE, GPIO_Pin_11); //PE.11
#define nBS_L GPIO_ResetBits(GPIOE, GPIO_Pin_11);
#define VPP_H GPIO_SetBits(GPIOA, GPIO_Pin_4); //PA4
#define VPP_L GPIO_ResetBits(GPIOA, GPIO_Pin_4); //PA4
#define LED_1 GPIO_ResetBits(GPIOE, GPIO_Pin_12);
#define LED_0 GPIO_SetBits(GPIOE, GPIO_Pin_12);
void SPI4W_WRITECOM(unsigned char INIT_COM);
void SPI4W_WRITEDATA(unsigned char INIT_DATA);
void SPI4W_WRITE(unsigned char INIT_COM,unsigned char INIT_DATA);
void MYRESET(void);
void DELAY_100nS(unsigned int delaytime);
void DELAY_mS(unsigned int delaytime);
void DELAY_S(unsigned int delaytime);
void DELAY_M(unsigned int delaytime);
void READBUSY(void);
int k=0;
//unsigned char RECEIVE[15000];
int RxCounter;
unsigned int ReceiveState;
unsigned char ZW[]=
{
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
…………
…………
…………限于本文篇幅余下代码请从电子发烧友下载附件…………
0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
};*/
void DELAY_100nS(unsigned int delaytime) // 30us
{
int i,j;
for(i=0;i for(j=0;j<1;j++);
}
void DELAY_mS(unsigned int delaytime) // 1ms
{
int i,j;
for(i=0;i {for(j=0;j<200;j++);}
}
void DELAY_S(unsigned int delaytime) // 1s
{
int i,j,k;
for(i=0;i {
for(j=0;j<4000;j++)
{
for(k=0;k<222;k++);
}
}
}
void DELAY_M(unsigned int delaytime) // 1M
{
int i;
for(i=0;i DELAY_S(60);
}
void lcd_chkstatus(void)
{
unsigned char busy;
do
{
SPI4W_WRITECOM(0x71);
busy = nBUSY;
busy =!(busy & 0x01);
}
while(busy);
DELAY_mS(200);
}
void EPD_W21_Init(void)
{
nBS_L; //4 wire spi mode selected
nRST_L; //module reset
DELAY_mS(1000);
nRST_H;
DELAY_mS(1000);
}
void Ultrachip1(void)
{
unsigned int i;
for(i=0;i<15000;i++)
{
SPI4W_WRITEDATA(G_Ultrachip1);
}
DELAY_mS(2);
}
void Ultrachip_red1(void)
{
unsigned int i;
for(i=0;i<15000;i++)
{
SPI4W_WRITEDATA(G_Ultrachip_red1);
}
DELAY_mS(2);
}
/*void Ultrachip2(void)
{
unsigned int i;
for(i=0;i<15000;i++)
{
SPI4W_WRITEDATA(G_Ultrachip2);
}
DELAY_mS(2);
}*/
void Ultrachip_red2(void)
{
unsigned int i;
for(i=0;i<15000;i++)
{
SPI4W_WRITEDATA(G_Ultrachip_red2);
}
DELAY_mS(2);
}
void EPPROM_READ(void)
{
unsigned int i,b;
unsigned char c;
b =100 ;
for(i=0;i<15000;i++)
{
c=AT24CXX_ReadOneByte(b);
SPI4W_WRITEDATA(c);
b++;
}
DELAY_mS(2);
}
void pic_display(void)
{
SPI4W_WRITECOM(0x10);
Ultrachip1();
SPI4W_WRITECOM(0x13);
Ultrachip_red1();
}
void Display(void)
{
EPD_W21_Init();
SPI4W_WRITECOM(0x06); //boost设定
SPI4W_WRITEDATA (0x17);
SPI4W_WRITEDATA (0x17);
SPI4W_WRITEDATA (0x17); //07 0f 17 1f 27 2F 37 2f
SPI4W_WRITECOM(0x04);
lcd_chkstatus();
SPI4W_WRITECOM(0x00);
SPI4W_WRITEDATA(0x0f); // LUT from OTP
pic_display();
SPI4W_WRITECOM(0x12);
DELAY_mS(100);
lcd_chkstatus();
SPI4W_WRITECOM(0X50);
SPI4W_WRITEDATA(0xf7); //border floating
SPI4W_WRITECOM(0X02); //power off
lcd_chkstatus();
SPI4W_WRITECOM(0X07); //deep sleep
SPI4W_WRITEDATA(0xA5);
DELAY_mS(100);
}
void EEPROM_Display(void)
{
EPD_W21_Init();
SPI4W_WRITECOM(0x06); //boost设定
SPI4W_WRITEDATA (0x17);
SPI4W_WRITEDATA (0x17);
SPI4W_WRITEDATA (0x17); //07 0f 17 1f 27 2F 37 2f
SPI4W_WRITECOM(0x04);
lcd_chkstatus();
SPI4W_WRITECOM(0x00);
SPI4W_WRITEDATA(0x0f); // LUT from OTP
EEPROM_PLAY();
SPI4W_WRITECOM(0x12);
DELAY_mS(100);
lcd_chkstatus();
/************************power off Sequence************************/
SPI4W_WRITECOM(0X50);
SPI4W_WRITEDATA(0xf7); //border floating
SPI4W_WRITECOM(0X02); //power off
lcd_chkstatus();
SPI4W_WRITECOM(0X07); //deep sleep
SPI4W_WRITEDATA(0xA5);
/************************power off Sequence************************/
DELAY_mS(100);
}
void EEPROM_PLAY(void)
{
SPI4W_WRITECOM(0x10);
EPPROM_READ();
SPI4W_WRITECOM(0x13);
Ultrachip_red2();
}
/*****************************************************************************************************/
void SPI4W_WRITECOM(unsigned char INIT_COM)
{
unsigned char TEMPCOM;
unsigned char scnt;
TEMPCOM=INIT_COM;
nCS_H
nCS_L
SCLK_L
nDC_L
for(scnt=0;scnt<8;scnt++)
{
if(TEMPCOM&0x80)
SDA_H
else
SDA_L
DELAY_100nS(10);
SCLK_H
DELAY_100nS(10);
SCLK_L
TEMPCOM=TEMPCOM<<1;
DELAY_100nS(10);
}
nCS_H
}
void SPI4W_WRITEDATA(unsigned char INIT_DATA)
{
unsigned char TEMPCOM;
unsigned char scnt;
TEMPCOM=INIT_DATA;
nCS_H
nCS_L
SCLK_L
nDC_H
for(scnt=0;scnt<8;scnt++)
{
if(TEMPCOM&0x80)
SDA_H
else
SDA_L
DELAY_100nS(10);
SCLK_H
DELAY_100nS(10);
SCLK_L
TEMPCOM=TEMPCOM<<1;
DELAY_100nS(10);
}
nCS_H
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
#define NVIC_VectTab_FLASH misc.h
*******************************************************************************/
/*int main(void)
{
#ifdef DEBUG
debug();
#endif
int v,q,s;
char c;
DELAY_S(1);
// 系统时钟设置
RCC_Configuration();
//GPIO参数设置
GPIO_Configuration();
uart_init(115200);
AT24CXX_Init();
LED_Init();
//EPD_W21_Init();
AT24CXX_Init();
// VPP_H;
k=0;
v=100;
//EEPROM_Display();
Display();
while(1)
{
if(ReceiveState==1)
{
ReceiveState=0;
while(RxCounter--)
{
AT24CXX_WriteOneByte(v,RECEIVE[k]);
v++;
k++;
//DELAY_mS(5);
}
LED_0;
//c=AT24CXX_ReadOneByte(107);
//USART_SendData(USART1,c);
//while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
EEPROM_Display();
RxCounter=0;
v=100;
k=0;
}
}
}*/
int main(void)
{
#ifdef DEBUG
debug();
#endif
int i;
char c;
DELAY_S(1);
// 系统时钟设置
RCC_Configuration();
//GPIO参数设置
GPIO_Configuration();
uart_init(115200);
AT24CXX_Init();
LED_Init();
//EPD_W21_Init();
AT24CXX_Init();
DELAY_mS(5000);
for(i=1;i<30000;i++)
{
//c=ZW;
//USART_SendData(USART1,c);
//while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
AT24CXX_WriteOneByte(i,0x1c);
}
for(i=1;i<30000;i++)
{
c=AT24CXX_ReadOneByte(i); ;
USART_SendData(USART1,c);
while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
}
LED_1;
while(1);
}
/*******************************************************************************
* Function Name : RCC_Configuration
* Description : Configures the different system clocks.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RCC_Configuration(void)
{
// 复位RCC时钟配置(用于调试模式)
RCC_DeInit();
// 使能外部晶振
RCC_HSEConfig(RCC_HSE_ON);
// 等待外部晶振稳定
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
// 设置锁相环频率PLLCLK = 8MHz * 9 = 72 MHz
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
}
else {
// 使能内部晶振
RCC_HSICmd(ENABLE);
// 等待内置振荡器稳定
while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
// 设置锁相环频率PLLCLK = 8MHz/2 * 16 = 64 MHz
RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_16);
}
// 使能FLASH的预取缓冲
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
//设置代码延时值,FLASH_Latency_2为两个延时周期
FLASH_SetLatency(FLASH_Latency_2);
//设置系统总线时钟
RCC_HCLKConfig(RCC_SYSCLK_Div1);
//设置高速设备总线时钟，RCC_HCLK_Div1为系统时钟除以1
RCC_PCLK2Config(RCC_HCLK_Div1);
//设置低速设备总线时钟，RCC_HCLK_Div2为系统时钟除以2
RCC_PCLK1Config(RCC_HCLK_Div2);
//使能锁相环倍频
RCC_PLLCmd(ENABLE);
// 等待锁相环倍频后的频率稳定
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
// 选择锁相环时钟为系统时钟源
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
// 等待设置完成
while(RCC_GetSYSCLKSource() != 0x08);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |
RCC_APB2Periph_USART1|RCC_APB2Periph_AFIO,
ENABLE);
}
/*******************************************************************************
* 函数名 : GPIO_Configuration
* 描述 : 设置设置串口所用GPIO引脚的参数
* 输入 : None
* 输出 : None
* 返回 : None
*******************************************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 |GPIO_Pin_10; //abcd OE ST LT0输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_14 |GPIO_Pin_15; //abcd OE ST LT0输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; //abcd OE ST LT0输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOE, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; //VPP
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void uart_init(u32 bound)
{
//GPIO端口设置
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE); //使能USART1，GPIOA时钟
//USART1_TX GPIOA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出
GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.9
//USART1_RX GPIOA.10初始化
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//PA10
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空输入
GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.10
//Usart1 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//抢占优先级3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器
//USART 初始化设置
USART_InitStructure.USART_BaudRate = bound;//串口波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式
USART_Init(USART1, &USART_InitStructure); //初始化串口1
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//开启串口接受中断
USART_Cmd(USART1, ENABLE); //使能串口1
}
void LED_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOE, &GPIO_InitStructure);
GPIO_SetBits(GPIOE,GPIO_Pin_12);
}
/*******************************************************************************
* Function Name : NVIC_Configuration
* Description : Configures Vector Table base location.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void NVIC_Configuration(void)
{
// NVIC_InitTypeDef NVIC_InitStructure;
;
}
#ifdef DEBUG
/*******************************************************************************
* Function Name : assert_failed
* Description : Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* Input : - file: pointer to the source file name
* - line: assert_param error line source number
* Output : None
* Return : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %drn", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/*void USART1_IRQHandler(void)
{
unsigned char num;
if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
USART_ClearITPendingBit(USART1, USART_IT_RXNE);
num=USART_ReceiveData(USART1);
LED_1;
if(num==0XDD)
{
ReceiveState=1;
}
else
{
RECEIVE[RxCounter++]=num;
}
//USART_SendData(USART1,RECEIVE[2]);
}
}*/