Admo Wibowo

Important changes to forums and questions

All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.

11 years, 11 months ago.

interfacing with othe device

Dear All, I need to connect MBED with programmable power supply (PS) for getting feedback with the information of PS. and the PS has a baud rate 2400 bps. I try the program to communicate with PC and it okay, MBED respons to Teraterm with the character L what I want to. but how to display on LCD Display?? here the program <<code>> #include "mbed.h"

  1. include "TextLCD.h"
  2. define CMD_L (0x4C)

TextLCD lcd(p15, p16, p25, p26, p19, p20); rs, e, d4-d7

Serial device(p28, p27); tx, rx

int main() { device.baud(2400); lcd.printf("Starting...\n"); wait(5); lcd.cls(); while(5) {

wait(1); device.putc(CMD_L); "L"

lcd.printf("%s\r\n", device.getc());

} } <<\code>>

can some body help or suggestion?

thanks before..

1 Answer

Mel Lau
11 years, 11 months ago.

What type of LCD do you have, look at the source to TextLCD.cpp it supports several LCD, the default is LCD16x2. Also do a locate to position your cursor. Sample:

lcd.cls(); lcd.locate(0,0); lcd.printf("Hello world"); lcd.locate(0,10); lcd.printf("%c X-axis: %02u.%03u sec",(position == HORZ) ? '#' : ' ' , xtime/1000, xtime % 1000 );

Also in your code does getc() return a int ? If so it should be printf("%c",device.get());