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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
Microcomputers: M16C26A
The example described in this document applies to the microcomputers listed below:
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.)
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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
P71
P91 P90 P63 P62 P61 P60
LCD_E LCD_RS LCD_D7 LCD_D6 LCD_D5 LCD_D4
LCD
10MHz
Xin
M30260F8AGP
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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
Straight cable A,B,C,D,E,F
Liquid crystal display (LCD)
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.
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M16C/26A Group Sample Program (Terminal Software)
5.
Operational Specification
The data received from HyperTerminal is displayed.
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) Received character codes written in ASCII Control code TAB (0x09): Clear Entire received string is cleared BS (0x08): Backspace One character is cleared a i b c d e
1) Reset start
2) Character code received
f
g
h
3) BS code received
a
b
c
d
e
f
g
h
4) TAB code received
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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.
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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.
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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
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M16C/26A Group Sample Program (Terminal Software)
8. 1.
Tutorial
Launch the HEW by double-clicking its icon.
2.
Change the session name from "default Session" to "SessionM16C_E8_System."
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M16C/26A Group Sample Program (Terminal Software) 3.
Select "M30260F8A" for Device. Select "Download emulator firmware" for Mode.
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M16C/26A Group Sample Program (Terminal Software)
Check the box labeled "Power supply is carried out. (MAX 300mA)" and then select "5.0V."
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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.
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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.
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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.
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M16C/26A Group Sample Program (Terminal Software)
8.
Example Circuit
9.
Part List
Part name D-sub connector RS232C driver Ceramic capacitor Resistor PCB header Part No. J1 U3 C2 - C6 R3,R4 JA1,JA2 Q'ty 1 1 5 2 2 Maxim Panasonic ROHM Molex MAX3221ECAE ECJ-1VF1H104Z MCR10EZHF103 10-88-1261 100n 10k 26pin 1/8W, 5% Male, 2-row, vertical type Manufacturer Type number Value 9pin Remark Male
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M16C/26A Group Sample Program (Terminal Software)
10.
Web Sitet
Renesas Technology Web site
http://www.renesas.com/
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M16C/26A Group Sample Program (Terminal Software) Revision History
Rev. 1.00 1.10 Date of issue 2006.06.30 2007.12.03 Content of revision Page First revision issued RSK_LIB APIs supported Points
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