Qt实现安卓手机蓝牙通信并控制stm32f103c8t6驱动VFD屏
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一、Qt建立蓝牙通信
Qt具有跨平台的特性所以非常适合写通信的demo，但是在这个例程中Qt蓝牙部分不支持Windows平台，安卓平台使用没问题。
Qt蓝牙主要涉及到三个类的使用：
QBluetoothDeviceDiscoveryAgent //扫描周围蓝牙设备
QBluetoothLocalDevice //扫描本地蓝牙
QBluetoothSocket //建立蓝牙的socket读写
安卓不支持低功耗蓝牙，但是socket既可以使用经典蓝牙也可以使用低功耗蓝牙，本例程使用经典蓝牙socket收发数据
1、在.pro工程文件添加
Qt +=bluetooth
2、主要代码Widget.h和Widget.c
#ifndef WIDGET_H
#define WIDGET_H
#pragma execution_character_set("utf-8") //解决中文乱码
#include <QWidget>
#include <QObject>
#include <QtBluetooth/qbluetoothlocaldevice.h>
#include <qbluetoothaddress.h>
#include <qbluetoothdevicediscoveryagent.h>
#include <qbluetoothlocaldevice.h>
#include <qbluetoothsocket.h>
#include <QMap>
#include <QTimer>
QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE
class Widget : public QWidget
{
Q_OBJECT
public:
Widget(QWidget *parent = nullptr);
~Widget();
void model2_Init();
public slots:
void addBlueToothDevicesToList(const QBluetoothDeviceInfo&);
void readBluetoothDataEvent();
void bluetoothConnectedEvent();
void bluetoothDisconnectedEvent();
void onError(QBluetoothSocket::SocketError error);
void open_BLE();
void close_BLE();
void scanFinished();
private:
QBluetoothDeviceDiscoveryAgent *discoveryAgent;
QBluetoothLocalDevice *localDevice;
QBluetoothSocket *socket;
QByteArray blueArray;
QMap<QString,QBluetoothAddress>m;
QBluetoothDeviceInfo remoteDeviceInfo;
float ff;//随机数缓存
float div;//每次下降数
float sx;//上限
float t;//时间
QString ss;//字符判断是模式1还是模式2
QTimer *time;
private slots:
void on_pushButton_clicked();
void on_pushButton_2_clicked();
void on_pushButton_4_clicked();
void on_pushButton_5_clicked();
void on_pushButton_3_clicked();
void on_pushButton_7_clicked();
void on_pushButton_8_clicked();
void on_pushButton_9_clicked();
void on_pushButton_6_clicked();
void timeProcess();
void on_pushButton_10_clicked();
void on_label_7_linkActivated(const QString &link);
private:
Ui::Widget *ui;
};
#endif // WIDGET_H
## Widget.c
#include "widget.h"
#include "ui_widget.h"
#include <QRandomGenerator>
#include <QLowEnergyController>
//这个UUID要根据自己的使用情况来确定,我使用的是串口类的UUID,具体可https://www.jianshu.com/p/eb85cb690e86
static const QLatin1String serviceUuid("00001101-0000-1000-8000-00805F9B34FB");
//static const QLatin1String serviceUuid("FDA50693A4E24FB1AFCFC6EB07647825");
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
ui->plainTextEdit->setDisabled(1);
discoveryAgent = new QBluetoothDeviceDiscoveryAgent(this);
localDevice = new QBluetoothLocalDevice(this);
socket = new QBluetoothSocket(QBluetoothServiceInfo::RfcommProtocol);
time = new QTimer(this);
connect(time,SIGNAL(timeout()),this,SLOT(timeProcess()));
discoveryAgent->start();
ui->pushButton_4->setDisabled(1);
connect(discoveryAgent, SIGNAL(finished()), this, SLOT(scanFinished()));//搜索结束
connect(discoveryAgent,
SIGNAL(deviceDiscovered(QBluetoothDeviceInfo)),
this,
SLOT(addBlueToothDevicesToList(QBluetoothDeviceInfo))
);
connect(socket,SIGNAL(readyRead()),
this,
SLOT(readBluetoothDataEvent())
);
connect(socket,SIGNAL(connected()),
this,
SLOT(bluetoothConnectedEvent())
);
connect(socket,SIGNAL(disconnected()),
this,
SLOT(bluetoothDisconnectedEvent())
);
connect(socket,SIGNAL(error(QBluetoothSocket::SocketError)),this,SLOT(onError(QBluetoothSocket::SocketError)));
}
Widget::~Widget()
{
delete ui;
delete discoveryAgent;
delete localDevice;
delete socket;
delete time;
}
void Widget::onError(QBluetoothSocket::SocketError error)
{
QString str;
if(QBluetoothSocket::UnknownSocketError == error){
str = "UnknownSocketError";
}else if(QBluetoothSocket::NoSocketError == error){
str = "NoSocketError";
}else if(QBluetoothSocket::HostNotFoundError == error){
str = "HostNotFoundError";
}else if(QBluetoothSocket::ServiceNotFoundError == error){
str = "ServiceNotFoundError";
}else if(QBluetoothSocket::NetworkError == error){
str = "NetworkError";
}else if(QBluetoothSocket::UnsupportedProtocolError == error){
str = "UnsupportedProtocolError";
}else if(QBluetoothSocket::OperationError == error){
str = "OperationError";
}else if(QBluetoothSocket::RemoteHostClosedError == error){
str = "RemoteHostClosedError";
}
qDebug()<<error;
//emit backendRunMesgPost(str);
//emit backendRunMesgPost("SocketError");
}
void Widget::addBlueToothDevicesToList( const QBluetoothDeviceInfo &info )
{
remoteDeviceInfo = info;
qDebug()<<"进入addBlueToothDevicesToList函数！";
QString label = QString("%1 %2").arg(info.address().toString()).arg(info.name());
qDebug()<<label;
ui->comboBox->addItem(info.name());
if(label.contains("BT04-A")){
//找到需要连接的蓝牙名字
int index = label.indexOf(' ');
if(index == -1){
qDebug()<<"index";
return;
}
QBluetoothAddress address(label.left(index));
m[info.name()] = address;//关联蓝牙名字和address
QString name(label.mid(index + 1));
qDebug() << "You has choice the bluetooth address is " << address<<name<<endl;
//qDebug() << "The device is connneting.... ";
//ui->plainTextEdit_2->setPlainText("You has choice the bluetooth address is "+name);
//ui->plainTextEdit_2->setPlainText("The device is connneting.... ");
//emit backendRunMesgPost("The device is connneting");
//socket->connectToService(address, QBluetoothUuid(serviceUuid) ,QIODevice::ReadWrite);
}
}
void Widget::readBluetoothDataEvent()
{
static int cnt = 0;
QByteArray line = socket->readAll();
if(line.startsWith("y") || line.startsWith("r"))
ss = line;
if(ss.startsWith("y"))
{
//ss = "d";
if(!line.startsWith('y'))
{
blueArray.append(line);
}
if(cnt < 4)
{
ui->plainTextEdit->appendPlainText(QString(blueArray));
cnt++;
}
else
{
cnt = 0;
ui->plainTextEdit->clear();
}
//ui->plainTextEdit->setPlainText(QString(blueArray));
ui->plainTextEdit_2->setPlainText("模式1");
emit ui->pushButton_3->clicked(1);
}
else if(ss.startsWith("r"))
{
ss = "d";
ui->plainTextEdit_2->setPlainText("模式2");
model2_Init();
emit ui->pushButton_10->clicked(1);
emit ui->pushButton_7->clicked(1);
ss = "d";
}
else if(line.startsWith("Flash"))
{
ui->plainTextEdit_2->setPlainText(QString(line));
ss = "d";
}
}
void Widget::bluetoothConnectedEvent()
{
qDebug() << "The android device has been connected successfully!";
ui->plainTextEdit_2->setPlainText("The android device has been connected successfully!");
}
void Widget::bluetoothDisconnectedEvent()
{
qDebug() << "The android device has been disconnected successfully!";
}
void Widget::open_BLE()
{
if( localDevice->hostMode() == QBluetoothLocalDevice::HostPoweredOff)//开机没有打开蓝牙
{
localDevice->powerOn();//调用打开本地的蓝牙设备
discoveryAgent->start();//开始扫描蓝牙
connect(discoveryAgent,
SIGNAL(deviceDiscovered(QBluetoothDeviceInfo)),
this,
SLOT(addBlueToothDevicesToList(QBluetoothDeviceInfo))
);
ui->plainTextEdit_2->setPlainText("手机蓝牙已成功打开!");
}
else
{
qDebug() << "手机蓝牙已成功打开!";
ui->plainTextEdit_2->setPlainText("手机蓝牙已成功打开!");
}
}
void Widget::close_BLE()
{
socket->close();
ui->plainTextEdit_2->setPlainText("蓝牙已断开!");
}
void Widget::on_pushButton_clicked()//模式一
{
//ui->plainTextEdit->clear();
ui->pushButton_2->setDisabled(1);
ui->pushButton_7->setDisabled(1);
socket->write("y");
}
void Widget::on_pushButton_2_clicked()//模式二
{
model2_Init();
ui->pushButton->setDisabled(1);
ui->pushButton_3->setDisabled(1);
if(socket->state() == QAbstractSocket::ConnectedState)
{
socket->write("r");
}
}
void Widget::on_pushButton_4_clicked()//连接蓝牙
{
discoveryAgent->stop();
if(ui->comboBox->currentText().startsWith("BT04-A"))
{
//低功耗蓝牙连接方式
/*QLowEnergyController *lowBtControl = QLowEnergyController::createCentral(remoteDeviceInfo);
lowBtControl->connectToDevice();
*/
//经典蓝牙连接方式
qDebug() << "连接到的蓝牙是" << m[ui->comboBox->currentText()]<<ui->comboBox->currentText();
socket->connectToService(m[ui->comboBox->currentText()],QBluetoothUuid(serviceUuid) ,QIODevice::ReadWrite);
ui->plainTextEdit_2->setPlainText("The device is connneting.... ");
if(socket->state() == QAbstractSocket::ConnectedState)
ui->plainTextEdit_2->setPlainText("蓝牙连接成功！");
}
else
{
ui->plainTextEdit_2->setPlainText("没有找到目标蓝牙！");
}
}
void Widget::on_pushButton_5_clicked()//断开连接
{
close_BLE();
}
void Widget::on_pushButton_3_clicked()//模式一修改数字
{
if(socket->write("v"))
{
QString str;
str = ui->lineEdit_6->text();
str.append('z');
socket->write(str.toUtf8());
ui->plainTextEdit_2->setPlainText("成功发送一条数据！v");
}
}
void Widget::on_pushButton_7_clicked()
{
if(socket->write("s"))//发送随机数
{
QString str = QString("%1").arg(sx);
if(str.length() > 4)
str = str.left(4);
str.append('x');
socket->write(str.toUtf8());
}
}
void Widget::on_pushButton_8_clicked()//切换模式
{
ui->pushButton->setEnabled(1);
ui->pushButton_2->setEnabled(1);
ui->pushButton_7->setEnabled(1);
ui->pushButton_3->setEnabled(1);
ui->plainTextEdit->setEnabled(1);
ui->plainTextEdit->clear();
ui->plainTextEdit->setDisabled(1);
time->stop();
}
void Widget::on_pushButton_9_clicked()
{
open_BLE();
}
void Widget::on_pushButton_6_clicked()
{
this->close();
}
void Widget::scanFinished()
{
ui->pushButton_4->setEnabled(1);
}
void Widget::timeProcess()
{
sx = sx - div;
QString str;
str = QString("%1").arg(sx);
qDebug()<<"sx is " + str<<endl;
if(sx <= ff)
{
sx = ff;
time->stop();
}
ui->plainTextEdit_2->setPlainText("成功发送一条数据！s"+str);
str = QString("%1").arg(div);
qDebug()<<"div is " + str<<endl;
emit ui->pushButton_7->clicked(1);
}
void Widget::model2_Init()
{
sx = ui->lineEdit_3->text().toUInt();
t = ui->lineEdit_4->text().toUInt();
div = (sx - ff)/(t*10);
}
void Widget::on_pushButton_10_clicked()
{
if(ui->lineEdit->text().isEmpty() == false && ui->lineEdit_2->text().isEmpty() == false )
{
std::uniform_real_distribution<float> dist(ui->lineEdit->text().toUInt(), ui->lineEdit_2->text().toUInt());
ff = dist(*QRandomGenerator::global());
ui->lineEdit_5->setText(QString::number(ff));
QString str = ui->lineEdit_5->text();
if(str.length() > 4)
str = str.left(4);
ff = str.toFloat();
ui->lineEdit_5->setText(QString::number(ff));
if(ui->lineEdit_3->text().isEmpty() == false && ui->lineEdit_4->text().isEmpty() == false)
{
time->start(6000);
}
}
}
二、通过蓝牙模块控制stm32f103c8t6驱动VFD
蓝牙模块选择BT08B蓝牙串口模块兼容HC-06,只需连接四个引脚 VCC 、GND、TX、RX即可
下面为VFD模块驱动程序，采用带驱动芯片的模块，直流5V供电即可，stm32可直接驱动模块引出引脚
1、VFD_Drive.h
#ifndef _VFD_DRIVE_H
#define _VFD_DRIVE_H
#include "stm32f10x.h"
void VFD_GPIOInit(void);//GPIO初始化
void WriteCMD(u8 cmd);//写命令
void WriteDATA(u8 data);//写数据
void Clear(void);//清屏
void Cursor_home(void);//光标归位
/*
该指令选择在每次DDRAM或CGRAM访问后AC(游标位置)是递增还是递减，并确定在每次DDRAM写入后显示信息的移动方向。
该指令还在每次DDRAM写入后启用或禁用显示移位。
*/
void IncCursor(void);//光标递增（向右）
void DecCursor(void);//光标递减（向左）
void DisplayOFForON(u8 i,u8 j,u8 n);//光标显示还是不显示,i = 1显示i = 0不显示，并指定是否闪烁j = 1闪烁，j = 0闪烁,n=1开光标，n=0关光标
/*
该指令增加或减少AC(光标位置)，并将显示信息向左或向右移动一个字符的位置
*/
void CharLeft(void);//字符和光标左移
void CharRight(void);//字符和光标右移
void CursorLeft(void);//光标左移
void CursorRight(void);//光标右移
/*
设置并行口模式DL = 0为4位模式，DL = 1为8位模式
设置单行显示还是两行显示，N = 0，单行显示，N = 1两行显示
设置亮度BR = 0 100%亮度，BR = 1 75%亮度，BR = 2 50%亮度，BR = 3 25%亮度
*/
void FunSet(u8 DL,u8 N,u8 BR);//这里固定为两行显示，亮度100%，如需更改请查看手册重写函数
/*该指令将DB5-DB0指定的6位CGRAM地址放入AC(光标位置)。后续的数据写入(读取)将会指向(从)CGRAM。*/
u8 CGRAM_addrSet(u8 addr);//返回传入addr后的命令
/*该指令将DB6-DB0指定的7位DDRAM地址放入AC(光标位置)。后续的数据写入(读取)将从DDRAM写入(从DDRAM读取)。*/
u8 DDRAM_addrSet(u8 addr);//返回传入addr后的命令
/*该指令将DB7-DB0上的8位数据字节写入AC寻址的DDRAM或CGRAM位置。
最近的DDRAM或CGRAM地址集指令决定是写入DDRAM还是CGRAM。
该指令还根据输入模式设置(Entry Mode set)指令设置的I/D和S位对AC进行递增或递减，并将显示移位。*/
void CGRAMorDDRAM_Write(u8 data);
/*该指令从DB7-DB0上AC寻址的DDRAM或CGRAM位置读取8位数据字节。最近的DDRAM或CGRAM地址集指令决定读取是来自DDRAM还是CGRAM。
该指令还根据输入模式设置(Entry Mode set)指令设置的I/D和S位对AC进行递增或递减，并将显示移位。
在发送此指令之前，应该执行DDRAM或CGRAM地址集指令将AC设置为所需的要读取的DDRAM或CGRAM地址。*/
u8 CGRAMorDDRAM_Read(void);//这个函数暂时用不到没实现，使用时请查阅数据手册编写
void String(u8 ad,char *s);//指定位置写入数据并显示
void VFD_Init(void);//VFD模块初始化配置
#endif
2、VFD_Drive.c
#include "VFD_Drive.h"
#include "SysTick.h"
/***********************************************************************************************
采用摩托罗拉8/4位并行口控制模块
连线方式
PA9-RS, PA10-E, PB6-R\W
PB7-DB4， PB8-DB5, PB9-DB6, PB10-DB7, PB12-DB3, PB13-DB2, PB14-DB1, PB15-DB0
***********************************************************************************************/
void VFD_GPIOInit()
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;
GPIO_Init(GPIOB,&GPIO_InitStruct);
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_10|GPIO_Pin_9;
GPIO_Init(GPIOA,&GPIO_InitStruct);
}
void WriteCMD(u8 cmd)
{
u8 i,mask = 0x80;
GPIO_ResetBits(GPIOA,GPIO_Pin_9);//RS = 0
GPIO_SetBits(GPIOA,GPIO_Pin_10);//E = 1
GPIO_ResetBits(GPIOB,GPIO_Pin_6);//R\W = 0
SysTick_us(1);
for(i = 1;i <= 8;i++)
{
if(cmd & mask)
{
switch(i)
{
case 1:GPIO_SetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_SetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_SetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_SetBits(GPIOB,GPIO_Pin_7);break;
case 5:GPIO_SetBits(GPIOB,GPIO_Pin_12);break;
case 6:GPIO_SetBits(GPIOB,GPIO_Pin_13);break;
case 7:GPIO_SetBits(GPIOB,GPIO_Pin_14);break;
case 8:GPIO_SetBits(GPIOB,GPIO_Pin_15);break;
}
}
else
{
switch(i)
{
case 1:GPIO_ResetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_ResetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_ResetBits(GPIOB,GPIO_Pin_7);break;
case 5:GPIO_ResetBits(GPIOB,GPIO_Pin_12);break;
case 6:GPIO_ResetBits(GPIOB,GPIO_Pin_13);break;
case 7:GPIO_ResetBits(GPIOB,GPIO_Pin_14);break;
case 8:GPIO_ResetBits(GPIOB,GPIO_Pin_15);break;
}
}
mask>>=1;
}
SysTick_us(1);
GPIO_ResetBits(GPIOA,GPIO_Pin_10);//E = 0
SysTick_us(1);
}
void WriteDATA(u8 data)
{
u8 i;
u8 mask = 0x80;
GPIO_SetBits(GPIOA,GPIO_Pin_9);//RS = 1
GPIO_SetBits(GPIOA,GPIO_Pin_9);//RS = 1
GPIO_SetBits(GPIOA,GPIO_Pin_10);//E = 1
GPIO_ResetBits(GPIOB,GPIO_Pin_6);//R\W = 0
SysTick_us(1);
for(i = 1;i <= 8;i++)
{
if(data & mask)
{
switch(i)
{
case 1:GPIO_SetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_SetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_SetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_SetBits(GPIOB,GPIO_Pin_7);break;
case 5:GPIO_SetBits(GPIOB,GPIO_Pin_12);break;
case 6:GPIO_SetBits(GPIOB,GPIO_Pin_13);break;
case 7:GPIO_SetBits(GPIOB,GPIO_Pin_14);break;
case 8:GPIO_SetBits(GPIOB,GPIO_Pin_15);break;
}
}
else
{
switch(i)
{
case 1:GPIO_ResetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_ResetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_ResetBits(GPIOB,GPIO_Pin_7);break;
case 5:GPIO_ResetBits(GPIOB,GPIO_Pin_12);break;
case 6:GPIO_ResetBits(GPIOB,GPIO_Pin_13);break;
case 7:GPIO_ResetBits(GPIOB,GPIO_Pin_14);break;
case 8:GPIO_ResetBits(GPIOB,GPIO_Pin_15);break;
}
}
mask>>=1;
}
SysTick_us(1);
GPIO_ResetBits(GPIOA,GPIO_Pin_10);//E = 0
SysTick_us(1);
}
/*void WriteCMD(u8 cmd)
{
u8 i;
u8 mask = 0x80;
GPIO_ResetBits(GPIOB,GPIO_Pin_3);//RS = 0
GPIO_ResetBits(GPIOB,GPIO_Pin_4);//E = 0
GPIO_ResetBits(GPIOB,GPIO_Pin_6);//R\W = 0
for(i = 1;i <= 4;i++)
{
if(cmd & mask)
{
switch(i)
{
case 1:GPIO_SetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_SetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_SetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_SetBits(GPIOB,GPIO_Pin_7);break;
}
}
else
{
switch(i)
{
case 1:GPIO_ResetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_ResetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_ResetBits(GPIOB,GPIO_Pin_7);break;
}
}
mask>>=1;
}
GPIO_SetBits(GPIOB,GPIO_Pin_4);//E = 1
SysTick_us(1);
GPIO_ResetBits(GPIOB,GPIO_Pin_4);//E = 0
cmd <<=4;
mask = 0x80;
for(i = 1;i <= 4;i++)
{
if(cmd & mask)
{
switch(i)
{
case 1:GPIO_SetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_SetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_SetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_SetBits(GPIOB,GPIO_Pin_7);break;
}
}
else
{
switch(i)
{
case 1:GPIO_ResetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_ResetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_ResetBits(GPIOB,GPIO_Pin_7);break;
}
}
mask>>=1;
}
GPIO_SetBits(GPIOB,GPIO_Pin_4);//E = 1
SysTick_us(1);
GPIO_ResetBits(GPIOB,GPIO_Pin_4);//E = 0
}
void WriteDATA(u8 data)
{
u8 i;
u8 mask = 0x80;
GPIO_SetBits(GPIOB,GPIO_Pin_3);//RS = 1
GPIO_ResetBits(GPIOB,GPIO_Pin_4);//E = 0
GPIO_ResetBits(GPIOB,GPIO_Pin_6);//R\W = 0
for(i = 1;i <= 4;i++)
{
if(data & mask)
{
switch(i)
{
case 1:GPIO_SetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_SetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_SetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_SetBits(GPIOB,GPIO_Pin_7);break;
}
}
else
{
switch(i)
{
case 1:GPIO_ResetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_ResetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_ResetBits(GPIOB,GPIO_Pin_7);break;
}
}
mask>>=1;
}
GPIO_SetBits(GPIOB,GPIO_Pin_4);//E = 1
SysTick_us(1);
GPIO_ResetBits(GPIOB,GPIO_Pin_4);//E = 0
data <<=4;
mask = 0x80;
for(i = 1;i <= 4;i++)
{
if(data & mask)
{
switch(i)
{
case 1:GPIO_SetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_SetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_SetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_SetBits(GPIOB,GPIO_Pin_7);break;
}
}
else
{
switch(i)
{
case 1:GPIO_ResetBits(GPIOB,GPIO_Pin_10);break;
case 2:GPIO_ResetBits(GPIOB,GPIO_Pin_9);break;
case 3:GPIO_ResetBits(GPIOB,GPIO_Pin_8);break;
case 4:GPIO_ResetBits(GPIOB,GPIO_Pin_7);break;
}
}
mask>>=1;
}
GPIO_SetBits(GPIOB,GPIO_Pin_4);//E = 1
SysTick_us(1);
GPIO_ResetBits(GPIOB,GPIO_Pin_4);//E = 0
}
*/
void Clear()
{
WriteCMD(0x01);
}
void Cursor_home()
{
WriteCMD(0x02);
}
void IncCursor()
{
WriteCMD(0x05);
}
void DecCursor()
{
WriteCMD(0x07);
}
void DisplayOFForON(u8 i,u8 j,u8 n)
{
if((i == 1) && (j == 0) && (n == 1))
WriteCMD(0x0E);
else if((i == 1)&&(j == 1)&& (n == 1))
WriteCMD(0x0F);
else if((i == 1)&&(j == 0)&& (n == 0))
WriteCMD(0x0C);
else if((i == 1)&&(j == 1)&&(n == 0))
WriteCMD(0x0D);
else if((i == 0) && (j == 0) && (n == 1))
WriteCMD(0x0A);
else if((i == 0) && (j == 1) && (n == 1))
WriteCMD(0x0B);
else if((i == 0) && (j == 0) && (n == 0))
WriteCMD(0x08);
else if((i == 0) && (j == 1) && (n == 0))
WriteCMD(0x09);
}
void CharLeft()
{
WriteCMD(0x18);
}
void CharRight()
{
WriteCMD(0x1C);
}
void CursorLeft()
{
WriteCMD(0x10);
}
void CursorRight()
{
WriteCMD(0x14);
}
void FunSet(u8 DL,u8 N,u8 BR)
{
if(DL == 1)
WriteCMD(0x38);
else
WriteCMD(0x28);
}
u8 CGRAM_addrSet(u8 addr)
{
u8 tpCMD;
tpCMD = 0x40;
tpCMD =tpCMD | addr;
WriteCMD(tpCMD);
return tpCMD;
}
u8 DDRAM_addrSet(u8 addr)
{
u8 tpCMD;
tpCMD = 0x80;
tpCMD = tpCMD | addr;
WriteCMD(tpCMD);
return tpCMD;
}
void CGRAMorDDRAM_Write(u8 data)
{
WriteDATA(data);
}
void String(u8 ad,char *s)
{
DDRAM_addrSet(ad);
SysTick_us(1);
while(*s != '\0')
{
WriteDATA(*s++);
SysTick_us(1);
}
}
void VFD_Init()
{
u8 i;
VFD_GPIOInit();
Cursor_home();
// SysTick_us(1);
// FunSet(1,0,0);
// SysTick_us(2);
DisplayOFForON(1,0,0);
// SysTick_us(1);
// IncCursor();
// SysTick_us(1);
// for(i = 0;i<1;i++)
// {
// CursorLeft();
// }
Clear();
SysTick_us(1);
}
3、main.c
#include "usart.h"
#include "VFD_Drive.h"
#include "SysTick.h"
#include "Flash.h"
u32 Info_Flash[1];
u32 m;
u16 Ch;
u8 Rev = 0;//串口接收数据
u8 flag = 0;
u8 flag_2 = 0;
u8 s_flag = 0;
u8 M2S_flag = 0;
u8 M_flag = 0;
char showBuffer[5] = {'9','.','2','2','\0'};
char buffer[5];
char M2_showBuffer[5];
char M2_buffer[5];
u32 Model = 1;//模式选择
u8 temp;
void Model1_FlashAction(void);//模式一往Flash存数据
void Model2_FlashAction(void);//模式二往Flash存数据
int main( void )
{
u8 i = 0;
flag = 0;
flag_2 = 0;
s_flag = 0;
M2S_flag = 0;
USART_Initialize();
VFD_Init();
STM32_FLASH_Read(0x08001C00,&m);
if(m == 1 || m == 2)
{
Model = m;
if(m == 1)
{
printf("y");
}
else
{
printf("r");
}
}
else
{
printf("Flash is not read! m = %d",m);
}
String(0x06,showBuffer);
while(1)
{
if(flag == 1)
{
for(i = 0;i < 5;i++)
{
showBuffer[i] = buffer[i];
}
flag = 0;
}
else if(flag_2 == 1)
{
for(i = 0;i < 5;i++)
{
M2_showBuffer[i] = M2_buffer[i];
}
flag_2 = 0;
}
String(0x00,"IV:");
String(0x0B,"ppb");
String(0x10,"M:S");
String(0x40,"F:100 sccm A:-----");
if(Model == 1)
{
String(0x06,showBuffer);
if(s_flag)
{
if(M_flag == 1)
{
printf("y");
M_flag = 0;
printf("IV: %s ppb M:S \nF:100 sccm A:----- \n",showBuffer);
}
printf("IV: %s ppb M:S \nF:100 sccm A:----- \n",showBuffer);
s_flag = 0;
}
}
if(Model == 2)
{
String(0x06,M2_showBuffer);
if(M2S_flag)
{
if(M_flag == 2)
{
printf("r");
M_flag = 0;
}
M2S_flag = 0;
}
}
SysTick_ms(500);
Clear();
}
return 0;
}
void USART2_IRQHandler()
{
static u8 cnt = 0;
static u8 f = 0;
if(USART_GetITStatus(USART2,USART_IT_RXNE))
{
temp = USART_ReceiveData(USART2);
if(temp == 'x' || temp =='z')
{
f = temp;
}
if(temp != 'y' && temp != 'r')
{
if(!((temp >= '0' && temp <= '9') || (temp == '.') || (temp == 'x') || (temp == 'z')) )
{
Ch = temp;
}
else if((temp >= '0' && temp <= '9') || (temp == '.'))
{
Rev = temp;
}
if(Ch == 'v')//模式一修改
{
if(((Rev >= '0' && Rev <= '9') || (Rev == '.')) && (f != 'z'))
{
buffer[cnt] = Rev;
cnt++;
}
else if(f == 'z')
{
s_flag = 1;
Rev = 0;
buffer[cnt] = '\0';
cnt = 0;
flag = 1;
flag_2 = 0;
M2S_flag = 0;
f = 0;
}
}
if(Ch == 's')//模式二随机数下限
{
if(((Rev >= '0' && Rev <= '9') || (Rev == '.') )&& (f != 'x'))
{
M2_buffer[cnt] = Rev;
cnt++;
}
else if(f == 'x')
{
Rev = 0;
M2_buffer[cnt] = '\0';
cnt = 0;
M2S_flag = 1;
flag = 0;
flag_2 = 1;
s_flag = 0;
f = 0;
}
}
}
else
{
if(temp == 'y')
{
Model = 1;
M_flag = 1;
Model1_FlashAction();
}
else if(temp == 'r')
{
Model = 2;
M_flag = 2;
Model2_FlashAction();
}
}
}
USART_ClearITPendingBit(USART2,USART_IT_RXNE);
}
void Model1_FlashAction()
{
Info_Flash[0] = Model;
STM32_FLASH_Write(0x08001C00,Info_Flash,1);
}
void Model2_FlashAction()
{
Info_Flash[0] = Model;
STM32_FLASH_Write(0x08001C00,Info_Flash,1);
}
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