Nobuki HIRAMINE
/
serial_receive
Serial communication. receive.
main.cpp@0:4ccad4f8fe4c, 2012-06-17 (annotated)
- Committer:
- nobuki
- Date:
- Sun Jun 17 03:38:08 2012 +0000
- Revision:
- 0:4ccad4f8fe4c
Version 1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
nobuki | 0:4ccad4f8fe4c | 1 | #include "mbed.h" |
nobuki | 0:4ccad4f8fe4c | 2 | #include "TextLCD.h" |
nobuki | 0:4ccad4f8fe4c | 3 | |
nobuki | 0:4ccad4f8fe4c | 4 | #define READBUFFERSIZE (32) |
nobuki | 0:4ccad4f8fe4c | 5 | |
nobuki | 0:4ccad4f8fe4c | 6 | Serial g_serial(USBTX, USBRX); |
nobuki | 0:4ccad4f8fe4c | 7 | TextLCD g_lcd(p15, p16, p17, p18, p19, p20); // RS, E, DB4, DB5, DB6, DB7 |
nobuki | 0:4ccad4f8fe4c | 8 | |
nobuki | 0:4ccad4f8fe4c | 9 | int ReadLineString( Serial& serial, |
nobuki | 0:4ccad4f8fe4c | 10 | char szReadBuffer[], const int ciReadBufferSize, int& riIndexChar, |
nobuki | 0:4ccad4f8fe4c | 11 | char szLineString[], const int ciLineStringSize ) |
nobuki | 0:4ccad4f8fe4c | 12 | { |
nobuki | 0:4ccad4f8fe4c | 13 | while( 1 ) |
nobuki | 0:4ccad4f8fe4c | 14 | { |
nobuki | 0:4ccad4f8fe4c | 15 | if( !serial.readable() ) |
nobuki | 0:4ccad4f8fe4c | 16 | { |
nobuki | 0:4ccad4f8fe4c | 17 | break; |
nobuki | 0:4ccad4f8fe4c | 18 | } |
nobuki | 0:4ccad4f8fe4c | 19 | char c = serial.getc(); |
nobuki | 0:4ccad4f8fe4c | 20 | if( '\r' == c ) |
nobuki | 0:4ccad4f8fe4c | 21 | { |
nobuki | 0:4ccad4f8fe4c | 22 | szReadBuffer[riIndexChar] = '\0'; |
nobuki | 0:4ccad4f8fe4c | 23 | strncpy( szLineString, szReadBuffer, ciLineStringSize - 1 ); |
nobuki | 0:4ccad4f8fe4c | 24 | szLineString[ciLineStringSize - 1] = '\0'; |
nobuki | 0:4ccad4f8fe4c | 25 | riIndexChar = 0; |
nobuki | 0:4ccad4f8fe4c | 26 | return 1; |
nobuki | 0:4ccad4f8fe4c | 27 | } |
nobuki | 0:4ccad4f8fe4c | 28 | else if( '\n' == c ) |
nobuki | 0:4ccad4f8fe4c | 29 | { |
nobuki | 0:4ccad4f8fe4c | 30 | ; |
nobuki | 0:4ccad4f8fe4c | 31 | } |
nobuki | 0:4ccad4f8fe4c | 32 | else |
nobuki | 0:4ccad4f8fe4c | 33 | { |
nobuki | 0:4ccad4f8fe4c | 34 | if( (ciReadBufferSize - 1) > riIndexChar ) |
nobuki | 0:4ccad4f8fe4c | 35 | { |
nobuki | 0:4ccad4f8fe4c | 36 | szReadBuffer[riIndexChar] = c; |
nobuki | 0:4ccad4f8fe4c | 37 | riIndexChar++; |
nobuki | 0:4ccad4f8fe4c | 38 | } |
nobuki | 0:4ccad4f8fe4c | 39 | } |
nobuki | 0:4ccad4f8fe4c | 40 | } |
nobuki | 0:4ccad4f8fe4c | 41 | |
nobuki | 0:4ccad4f8fe4c | 42 | return 0; |
nobuki | 0:4ccad4f8fe4c | 43 | } |
nobuki | 0:4ccad4f8fe4c | 44 | |
nobuki | 0:4ccad4f8fe4c | 45 | int main() |
nobuki | 0:4ccad4f8fe4c | 46 | { |
nobuki | 0:4ccad4f8fe4c | 47 | // setup |
nobuki | 0:4ccad4f8fe4c | 48 | g_serial.baud(9600); |
nobuki | 0:4ccad4f8fe4c | 49 | wait(0.001); |
nobuki | 0:4ccad4f8fe4c | 50 | g_lcd.cls(); wait(0.001); |
nobuki | 0:4ccad4f8fe4c | 51 | g_lcd.printf( "(ready)" ); |
nobuki | 0:4ccad4f8fe4c | 52 | |
nobuki | 0:4ccad4f8fe4c | 53 | // loop |
nobuki | 0:4ccad4f8fe4c | 54 | char szReadBuffer[READBUFFERSIZE] = ""; |
nobuki | 0:4ccad4f8fe4c | 55 | int iIndexChar = 0; |
nobuki | 0:4ccad4f8fe4c | 56 | while(1) |
nobuki | 0:4ccad4f8fe4c | 57 | { |
nobuki | 0:4ccad4f8fe4c | 58 | char szLineString[READBUFFERSIZE]; |
nobuki | 0:4ccad4f8fe4c | 59 | if( !ReadLineString( g_serial, |
nobuki | 0:4ccad4f8fe4c | 60 | szReadBuffer, READBUFFERSIZE, iIndexChar, |
nobuki | 0:4ccad4f8fe4c | 61 | szLineString, READBUFFERSIZE ) ) |
nobuki | 0:4ccad4f8fe4c | 62 | { |
nobuki | 0:4ccad4f8fe4c | 63 | continue; |
nobuki | 0:4ccad4f8fe4c | 64 | } |
nobuki | 0:4ccad4f8fe4c | 65 | g_lcd.cls(); wait(0.001); |
nobuki | 0:4ccad4f8fe4c | 66 | g_lcd.locate(0, 0); |
nobuki | 0:4ccad4f8fe4c | 67 | g_lcd.printf( szLineString ); |
nobuki | 0:4ccad4f8fe4c | 68 | } |
nobuki | 0:4ccad4f8fe4c | 69 | } |