' ********************************************************************** ' * File: uk_BASAVR_011.BAS * ' * Version: 1.1 * ' * Date: 17.05.10 * ' * Development Tools: Bascom-AVR Demo Ver. 1.11.9.1 + * ' * + AVR bootloader grifo(r) Ver. 1.2 * ' * Cards: GMM AM08 + GMM TST3 * ' * Developed by: GRIFO(r) Italian Technology * ' * via Dell'Artigiano 8/6 * ' * 40016 S. Giorgio di Piano (BO) * ' * Tel. +39 051 892052 Fax. +39 051 893661 * ' * http://www.grifo.com http://www.grifo.it * ' * Author: Gianluca Angelini * ' ********************************************************************** ' Example program 011 of BASCOM AVR course. ' It manages a calculator that performs the 4 basic operations, on the RS 232 ' serial communication line of GMM AM08. ' The program requires a first operand, one operator and a second operand and ' then it shows the result of the performed operation. At this point it can be ' performed another operation on the obtained temporary result or terminate ' with =. ' All the operands can have sign and decimal point, up to 8 maximum significant ' digits. ' The operands and operators are inserted through a serial console that shows ' also the result. The console must be provided of a keyboard and a monitor ' and it must communicate with a fixed physical protocol at 19200 Baud, 8 Bit ' x chr, 1 Stop bit, No parity. ' This console can be another system capable to support a serial RS 232 ' communication. In order to simplify the use it can be used a PC provided of ' one COMx line, that execute a terminal emulation program as HYPERTERMINAL or ' the homonimous modality provided by BASCOM AVR (see IDE Configuration). ' ' Added instructions: None. ' ' 17/05/10: uk_BASAVR_011.BAS - Ver 1.1 - By G.A. ' First version. ' ' '**************************** IDE Configurations ******************************* ' NOTE: in order to coorectly use this demo program, please execute the following ' steps: ' 1) Check the availability of M8DEF.DAT file into the directory where the ' BASCOM AVR is installed and copy it if not present. ' 2) Into the window "Options | Compiler | Chip" set: ' Chip: m8def.dat ' XRAM: None ' HW Stack: 64 ' Soft Stack: 32 ' Framesize: 64 ' XRAM waitstate: disabled ' External Access Enable: disabled ' 3) Into the window "Options | Communication" set: ' COM port = the PC line connected to GMM AM08, through GMM TST3 ' Baudrate = 19200 ' Parity = None ' Databits = 8 ' Stopbit = 1 ' Handshake = None ' Emulation = TTY ' Font = Terminal, Normal, 12 points, white colour ' Backcolor = Navy ' 4) At the end of compilation, after the code is programmed on GMM AM08, open ' the terminal emulation window of BASCOM AVR with the option: Tools | ' Terminal emulator (Ctrl+T) and then reset or powen on the Mini Module. '************************* Compiler directives ********************************* $regfile "M8DEF.DAT" ' Definitions file for used microcontroller $romstart = &H0 ' Code start address on FLASH $crystal = 7372800 ' Microcontroller crystal frequency $hwstack = 64 ' Hardware stack space $swstack = 32 ' Software stack space $framesize = 64 ' Frame space $map ' Generate debug information $baud = 19200 ' Serial communication speed: 19200 Baud ' Other parameters fixed to: 8 bit x chr ' 1 Stop bit ' No parity '******************************* Definitions *********************************** ' The resources used by program are connected as described in following table. ' !!! Note: On GMM TST3 the J1 jumper must be in position 2-3 and J3 in 1-2. !!! ' ' Signal pin COMx pin CN5 pin Z1 pin Signal Signal ' PC DB9 GMM TST3 GMM TST3 GMM AM08 GMM AM08 uP ' TX 3 3 9 3 RxD RS232 PD0 ' RX 2 2 10 4 TxD RS232 PD1 ' GND 5 5 20 14 GND - ' This table shows that the connection cable between PC COM line and CN5 of ' GMM TST3 is a normal pin to pin cable or direct. Grifo(r) can supply it by ' requesting the CCR 9+9E code. Pinrx Alias Ddrd.0 ' Bit with direction signal connected to GMM AM08 Rxd Pintx Alias Ddrd.1 ' Bit with direction signal connected to GMM AM08 TxD '************************* Constants declaration ******************************* '************************* Variables declaration ******************************* Dim Operand2 As Single ' Second operand Dim Result As Single ' Operation result Dim Operat As Byte ' Operator '************************ Subroutines declaration ****************************** '****************************** Main program *********************************** Main: Pinrx = 0 ' Initialize signals for serial communication Pintx = 0 ' as digital inputs Print ' Separate from previous visualization by showing an empty new line Print " Calculator that performs repeated foundamental operations" Do ' Begin endless loop Print ' Separate from previous visualization by showing an empty new line Input "First operand (8 digits max.): " , Result ' Require and get first operand and save it on result variable Do Print "Insert operator (+,-,*,/,=): " ; ' Require and get operator Operat = Waitkey() Printbin Operat ' Show inserted operator Print If Operat <> "=" Then ' If it isn't end operation operator Input "Second operand (8 digits max.): " , Operand2 ' Require and get second operator Select Case Operat ' Check inserted operator Case "+": ' If Sum operator Result = Result + Operand2 ' Perform addition of two operands Case "-": ' If Subtract operator Result = Result - Operand2 ' Perform subtraction of two operands Case "*": ' If Multiply operator Result = Result * Operand2 ' Perform multiplication of two operands Case "/": ' If Divide operator Result = Result / Operand2 ' Perform division of two operands End Select Print "Operation result: " ; Result ' Show result of performed operation End If Print ' Separate following operations, by showing a new line Loop Until Operat = "=" ' Repeat until operator is end operation Loop ' End endless loop End '*************************** End of main program *******************************