Application Notes M16C/26A Group Sample Program (Terminal Software) 1. Summary This sample program shows the characters and numerals input from the keyboard of a PC on liquid crystal display by using the Renesas Starter Kit for M16C/26A (R0K33026AS000BE). (Straight type) Received data The extension board used here is a product from PI System Co., Ltd. 2. Introduction The example described in this document applies to the microcomputers listed below: Microcomputers: M16C26A This sample program runs on the Renesas Starter Kit for M16C/26A (R0K33026AS000BE). Prepare an extension board available for the Renesas Starter Kit or create a circuit similar to the one shown in the example circuit on page 14 and then connect it to the Starter Kit. This program uses RSK_LIB. For details about RSK_LIB, see the RSK_LIB reference manual. (RSK_LIB is the library software provided for use with the Renesas Starter Kit for M16C/26A.) REJ05B0809-0110 Rev.1.10 2007.12 Page 1 of 17 M16C/26A Group Sample Program (Terminal Software) 3. Port Arrangement The terminal reception serial port and the buzzer are the facilities mounted on an extension board for the Renesas Starter Kit. To use these facilities, connect an extension board to the Starter Kit. Terminal data reception 10MHz P71 P91 P90 P63 P62 Xin P61 P60 LCD_E LCD_RS LCD_D7 LCD_D6 LCD LCD_D5 LCD_D4 M30260F8AGP REJ05B0809-0110 Rev.1.10 2007.12 Page 2 of 17 M16C/26A Group Sample Program (Terminal Software) 4. Operational Outline When characters are input to HyperTerminal (keyboard of a PC), the program shows the input characters on liquid crystal display. Connect the serial port (RS-232C) of a PC and the D-sub connecter on the microcomputer side with a straight cable, then enter characters in HyperTerminal. The input characters are shown on liquid crystal display along with a buzzer tone. Up to 16 characters can be displayed, not including BS and TAB codes. D-sub connector Liquid crystal display (LCD) Straight cable A,B,C,D,E,F ABCDEF Personal computer (PC) M16C26A The operation described above is accomplished using the following microcomputer facilities: • Timer A0 (timer mode, main 2 ms cycle) This timer counts 2 milliseconds using the main clock of the microcomputer as the count source. It is used as the basic timer of RSK_LIB. Time management, key scan and LCD display management are performed using this timer. • UART2 (clock-asynchronous serial I/O mode, data reception) It produces a transfer clock from the main clock of the microcomputer to receive the data transmitted via HyperTerminal. • Timer A1 (pulse modulation mode, buzzer output) This timer outputs a waveform with different high and low pulse widths using the main clock of the microcomputer as the count source. It is used to sound a buzzer to notify data reception at terminal. REJ05B0809-0110 Rev.1.10 2007.12 Page 3 of 17 M16C/26A Group Sample Program (Terminal Software) 5. Operational Specification The data received from HyperTerminal is displayed. 1) Reset start Communication format Baud rate: 9,600 bps (In microcomputer, set at 9,615 bps) Stop bit: 1 Parity: None Number of characters received: 16 (Only up to 16 characters are accepted) 2) Character code received Received character codes written in ASCII a Control code TAB (0x09): Clear b c d e f g h i Entire received string is cleared BS (0x08): Backspace One character is cleared 3) BS code received a b c d e f g h 4) TAB code received REJ05B0809-0110 Rev.1.10 2007.12 Page 4 of 17 M16C/26A Group Sample Program (Terminal Software) 6. Definition of the RSK Functionality and the RSK_LIB APIs and Common Functions Used by Terminal Software 6.1 Definition of the RSK Functionality RSKdefine.h file In this application, the following functionalities (those shown in red) are set. /********************************************************* The boot information on CPU is defined Usually, this mode is used *********************************************************/ #define _CPU_M16C26A_NORMAL_MOD /* Use in low power mode can be performed. */ //#define _CPU_M16C26A_32KHZ_MOD /* Use of access of a flash can be performed. */ //#define _CPU_M16C26A_DATAFLASF_USE /******************************************************** The hardware function which RSK supports is chosen /********************************************************/ //#define _USE_KEY #define _USE_BUZZER //#define _OPTION_USE_AD #define _OPTION_USE_COM_RX //#define _OPTION_USE_COM_TX //#define _OPTION_USE_INFRAEDRX //#define _OPTION_USE_INFRAEDTX //#define _OPTION_USE_SW //#define _OPTION_USE_LED //#define _OPTION_USE_IO There are no individual definitions of selected functionality. REJ05B0809-0110 Rev.1.10 2007.12 Page 5 of 17 M16C/26A Group Sample Program (Terminal Software) 6.2 APIs and Common Functions Used ApiStatusType RL_SetTimerReq( unsigned int TimerValue, char TimerMode, int *TimerNo, int *ERcode ); ApiStatusType RL_StartTimer( int TimerNo, int *ERcode ); ApiStatusType RL_CheckTimer( int TimerNo, int *ERcode ); ApiStatusType RL_Putc_Lcd( char Ylocation, char outc, int *ERcode ); ApiStatusType RL_Putc_LcdLoc( char Xlocation, char Ylocation, char RvTime, char outc, int *ERcode ); ApiStatusType RL_Open_Com( int bitlenght, int stopbit, int parity, int bps, int *ERcode ); ApiStatusType RL_Getc_Com( char *ComRxChar, int *ERcode ); ApiStatusType RL_Start_Buzzer( char freqNo, int *ERcode ); ApiStatusType RL_Stop_Buzzer( int *ERcode ); void RL_ErrorHook( int FuncNo, int ErrorNo ); For details about the APIs and common functions used by the sample program (terminal software), see the Renesas Starter Kit Library V.1.00 Reference Manual. REJ05B0809-0110 Rev.1.10 2007.12 Page 6 of 17 M16C/26A Group Sample Program (Terminal Software) 7. Flowchart Terminal Initialize serial I/O Clear display on LCD Request timer setup Start timers Wait for reception Process buzzer Process received character display REJ05B0809-0110 Rev.1.10 2007.12 Page 7 of 17 M16C/26A Group Sample Program (Terminal Software) 8. Tutorial 1. Launch the HEW by double-clicking its icon. 2. Change the session name from “default Session” to “SessionM16C_E8_System.” REJ05B0809-0110 Rev.1.10 2007.12 Page 8 of 17 M16C/26A Group Sample Program (Terminal Software) 3. Select “M30260F8A” for Device. Select “Download emulator firmware” for Mode. REJ05B0809-0110 Rev.1.10 2007.12 Page 9 of 17 M16C/26A Group Sample Program (Terminal Software) Check the box labeled “Power supply is carried out. (MAX 300mA)” and then select “5.0V.” REJ05B0809-0110 Rev.1.10 2007.12 Page 10 of 17 M16C/26A Group Sample Program (Terminal Software) 4. In the program and the work RAM text boxes of Firmware Location Address, enter “FA0” and “0B8” respectively. Leave the box labeled “Debug a program using the WDT” unchecked. REJ05B0809-0110 Rev.1.10 2007.12 Page 11 of 17 M16C/26A Group Sample Program (Terminal Software) 5. Choose Download from the Debug tab and download a module. The upper-side choices for Download show the location from which a project was downloaded. REJ05B0809-0110 Rev.1.10 2007.12 Page 12 of 17 M16C/26A Group Sample Program (Terminal Software) 6. Click “Start after Reset” to start program execution. 7. Please do "Cancellation" when "The file is opened" window opens. REJ05B0809-0110 Rev.1.10 2007.12 Page 13 of 17 M16C/26A Group Sample Program (Terminal Software) 8. Example Circuit 9. Part List Part name Part No. Q’ty D-sub connector J1 1 RS232C driver U3 1 Manufacturer Type number Maxim MAX3221ECAE Value Remark 9pin Male Ceramic capacitor C2 - C6 5 Panasonic ECJ-1VF1H104Z 100n Resistor R3,R4 2 ROHM MCR10EZHF103 10k 1/8W, 5% PCB header JA1,JA2 2 Molex 10-88-1261 26pin Male, 2-row, vertical type REJ05B0809-0110 Rev.1.10 2007.12 Page 14 of 17 M16C/26A Group Sample Program (Terminal Software) 10. Web Sitet Renesas Technology Web site http://www.renesas.com/ REJ05B0809-0110 Rev.1.10 2007.12 Page 15 of 17 M16C/26A Group Sample Program (Terminal Software) Revision History Content of revision Rev. Date of issue 1.00 2006.06.30 - First revision issued 1.10 2007.12.03 - RSK_LIB APIs supported REJ05B0809-0110 Rev.1.10 Page Points 2007.12 Page 16 of 17 M16C/26A Group Sample Program (Terminal Software) REJ05B0809-0110 Rev.1.10 2007.12 Page 17 of 17