mirror of https://github.com/ARMmbed/mbed-os.git
31 lines
752 B
C++
31 lines
752 B
C++
#include "mbed.h"
|
|
#include "TextLCD.h"
|
|
|
|
int main() {
|
|
printf("printf to stdout\n");
|
|
|
|
// printf to specific peripherals
|
|
Serial pc(USBTX, USBRX);
|
|
pc.printf("Serial(USBTX, USBRX).printf\n");
|
|
|
|
TextLCD lcd(p14, p15, p16, p17, p18, p19, p20, "lcd"); // rs, rw, e, d0-d3, name
|
|
lcd.printf("TextLCD.printf\n");
|
|
|
|
// change stdout to file
|
|
LocalFileSystem local("local");
|
|
freopen("/local/output.txt", "w", stdout);
|
|
printf("printf redirected to LocalFileSystem\n");
|
|
fclose(stdout);
|
|
|
|
// change stdout to LCD
|
|
freopen("/lcd", "w", stdout);
|
|
printf("printf redirected to TextLCD\n");
|
|
fclose(stdout);
|
|
|
|
DigitalOut led(LED1);
|
|
while (true) {
|
|
led = !led;
|
|
wait(1);
|
|
}
|
|
}
|