// Memory allocation function void Matrix::init () { mat = (float**)malloc(sizeof(float*)*row); if (mat == NULL) USART_Send_string("fail\n"); for (int i=0; i<row; i++) { mat[i] = (float*)malloc(sizeof(float)*col); if (mat[i] == NULL) USART_Send_string("fail2\n"); for(int j=0; j<col; j++) { mat[i][j] = 0.0f; } } }
int main(void) { //PB5 as LED DDRB |= _BV(5); //Configure USART USART_Init(MYUBRR); USART_Send_string("Before i2c_init()\n"); i2c_init(); USART_Send_string("After i2c_init()\n"); USART_Send_string("Before lcd_init()\n"); lcd_init(); //Display initialization USART_Send_string("After i2c_init()\n"); USART_Send_string("Before lcd_command()\n"); lcd_command(LCD_CLEAR); //Clear LCD USART_Send_string("After lcd_command()\n"); while(1) { USART_Send_string("\nIN LOOP\n"); PORTB ^= _BV(5); _delay_ms(1000); lcd_print("HELLO WORLD!"); //Print a string } }
// Prints on serial the matrix void Matrix::usart_Send_matrix (void) { int i,j; USART_Send_string("\n"); for (i=0; i<this->row; i++) { USART_Send_string("( "); for (j=0; j<this->col; j++) { print_double(this->mat[i][j]); USART_Send_string(" "); } USART_Send_string(")"); USART_Send_string("\n"); } }
// Constructor copy Matrix::Matrix(const Matrix& m) { row= m.row; col= m.col; mat = (float**)malloc(sizeof(float*)*row); if (mat == NULL) USART_Send_string("fail\n"); for (int i=0; i<row; i++) { mat[i] = (float*)malloc(sizeof(float)*col); if (mat[i] == NULL) USART_Send_string("fail\n"); for(int j=0; j<col; j++) { (*this)(i, j) = m.mat[i][j]; } } }
//主程序 void main(void) { uint i = 0; uint timercount = 0; uchar packNO = 1; uint bufferPoint = 0; uint crc; #ifdef UPDATE_USB uchar s; uint j; unsigned long UpdateSize = 0; uint LabCount = 0,lastdatanum = 0; uchar string[50] = {0}; #endif //初始化M128的USART0 UBRR0L = BAUD_L; //Set baud rate UBRR0H = BAUD_H; UCSR0B = ((1<<RXEN0)|(1<<TXEN0)); //接收器与发送器使能; UCSR0C = (1<<USBS0)|(3<<UCSZ00); //设置帧格式: 8 个数据位, 1 个停止位; #ifdef UPDATE_USB //初始化M128的USART1 UBRR1L = 8; UBRR1H = 0; UCSR1B = ((1<<RXEN1)|(1<<TXEN1)); //接收器与发送器使能; UCSR1C = (1<<USBS1)|(3<<UCSZ10); //设置帧格式: 8 个数据位, 1 个停止位; #endif //初始化M128的T/C0,15ms自动重载 OCR0 = 0x75; TCCR0 = 0x0F; TCNT0 = 0; DDRB.0 = 1; PORTB.0 = 1; /* USART_Send_string(a4String1); while(uart_getchar()!='O'); while(uart_getchar()!='K'); USART_Send_string(a4String2); while(uart_getchar()!='O'); while(uart_getchar()!='K'); */ USART_Send_string(startupString);//向PC机发送开始提示信息 while(1) { if(uart_getchar()=='d')break; if(TIFR&0x02) { if(++timercount>500) //若没有进入串口升级模式,则进入U盘升级模式 200*15ms=3s { #ifdef UPDATE_USB sprintf((char*)string,"Enter the USB_Disk Update!\n",UpdateSize); USART_Send_string(string); //++++++++++++++++初始化CH376S++++++++++++++++++++++++ //CH376_PORT_INIT( ); /* 接口硬件初始化 */ xWriteCH376Cmd(CMD11_CHECK_EXIST); /* 测试单片机与CH376之间的通讯接口 */ xWriteCH376Data(0x65); s = xReadCH376Data( ); if (s != 0x9A) uart_putchar(ERR_USB_UNKNOWN); /* 通讯接口不正常,可能原因有:接口连接异常,其它设备影响(片选不唯一),串口波特率,一直在复位,晶振不工作 */ xWriteCH376Cmd(CMD11_SET_USB_MODE); /* 设备USB工作模式 */ xWriteCH376Data(0x06); s = xReadCH376Data( ); if (s != CMD_RET_SUCCESS) { sprintf((char*)string,"USB_Disk is wrong init!\n",UpdateSize); USART_Send_string(string); quit(); } //++++++++++++++++++++++END+++++++++++++++++++++++++++++++++ //检查U盘是否连接好 i = 0; while(CH376DiskConnect() != USB_INT_SUCCESS) { if(++i > 5) { sprintf((char*)string,"USB_Disk is not Connection!\n",UpdateSize); USART_Send_string(string); quit(); } delay_ms(100); } i = 0; // 对于检测到USB设备的,最多等待10*50mS if(CH376DiskMount() != USB_INT_SUCCESS) { if(++i > 5) { sprintf((char*)string,"USB_Disk Test Wrong!\n",UpdateSize); USART_Send_string(string); quit(); } delay_ms(100); } //打开升级文件 s = CH376FileOpen("J8A-1.U");//每台机子,对应升级文件。 if (s == ERR_MISS_FILE) //没有找到升级文件则退出 { CH376FileClose(TRUE); sprintf((char*)string,"I can't fined the Update_File!\n",UpdateSize); USART_Send_string(string); quit(); } UpdateSize = CH376GetFileSize(); sprintf((char*)string,"The Update_File size is :%dl\n",UpdateSize); USART_Send_string(string); LabCount = UpdateSize/SPM_PAGESIZE; lastdatanum = UpdateSize%SPM_PAGESIZE; if(lastdatanum) LabCount++; if(LabCount > (512-32))//mega128的flash页数 { sprintf((char*)string,"The Update_File size is too big!",UpdateSize); USART_Send_string(string); CH376FileClose(FALSE); quit(); } //读取升级文件数据 for(i = 0; i < LabCount; i++) { if(lastdatanum && (i == (LabCount - 1))) { CH376ByteRead(data, lastdatanum, NULL); for(j = lastdatanum; j < SPM_PAGESIZE; j++) data[j] = 0xFF; } else CH376ByteRead(data, SPM_PAGESIZE, NULL); write_one_page(); address = address + SPM_PAGESIZE; //Flash页加1 } //write_one_page(); //收到256字节写入一页Flash中 //address = address + SPM_PAGESIZE; //Flash页加1 //关闭文件 CH376FileClose(FALSE); #endif quit(); } TIFR=TIFR|0x02; } } //每秒向PC机发送一个控制字符"C",等待控制字〈soh〉 while(uart_getchar()!= XMODEM_SOH) //receive the start of Xmodem { if(TIFR & 0x02) //timer0 over flow { if(++timercount > 100) //wait about 1 second { uart_putchar(XMODEM_RECIEVING_WAIT_CHAR); //send a "C" timercount = 0; } TIFR = TIFR&0x02; } } //开始接收数据块 do { if ((packNO == uart_waitchar()) && (packNO ==(~uart_waitchar()))) { //核对数据块编号正确 for(i=0;i<128;i++) //接收128个字节数据 { data[bufferPoint]= uart_waitchar(); bufferPoint++; } crc = (uint)(uart_waitchar())<<8; crc = crc | uart_waitchar(); //接收2个字节的CRC效验字 if(calcrc(&data[bufferPoint-128],128) == crc) //CRC校验验证 { //正确接收128个字节数据 while(bufferPoint >= SPM_PAGESIZE) { //正确接受256个字节的数据 write_one_page(); //收到256字节写入一页Flash中 address = address + SPM_PAGESIZE; //Flash页加1 bufferPoint = 0; } uart_putchar(XMODEM_ACK); //正确收到一个数据块 packNO++; //数据块编号加1 } else { uart_putchar(XMODEM_NAK); //要求重发数据块 } } else { uart_putchar(XMODEM_NAK); //要求重发数据块 } }while(uart_waitchar()!=XMODEM_EOT); //循环接收,直到全部发完 uart_putchar(XMODEM_ACK); //通知PC机全部收到 if(bufferPoint) write_one_page(); //把剩余的数据写入Flash中 quit(); //退出Bootloader程序,从0x0000处执行应用程序 }