Shinichiro Nakamura / Mbed 2 deprecated TestProgramForBugTopic1074

This is for http://mbed.org/forum/bugs-suggestions/topic/1074/

Dependencies:   mbed

main.cpp@1:70466efca68e, 2010-09-09 (annotated)

Committer:
shintamainjp
Date:
Thu Sep 09 10:21:06 2010 +0000
Revision:
1:70466efca68e
Parent:
0:49c0ef6111e6 

        

        
Who changed what in which revision?

        

            
                
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/**





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 * Test program for a bug. (http://mbed.org/forum/bugs-suggestions/topic/1074/)





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 *





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 * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)





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 * http://shinta.main.jp/





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 */





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#include "mbed.h"





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#include "Semaphore.h"





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Serial ser(USBTX, USBRX);





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Ticker ticker;





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BusOut led(LED4, LED3, LED2, LED1);





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Semaphore sem;





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volatile char shared_resource;   // This is a shared resource for example.





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#define LOCK() sem.try_enter()





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#define UNLOCK() sem.release()





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/**





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 * a ticker.





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 */





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void func_tick(void) {





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    led = led + 1;





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}





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/**





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 * A call back function for serial interrupt.





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 */





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void func_serial_interrupt(void) {





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    if (LOCK()) {





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        shared_resource = ser.getc();





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        UNLOCK();





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    }





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}





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/**





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 * Entry point.





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 */





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int main() {





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    ticker.attach_us(&func_tick, 100 * 1000);





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    ser.attach(&func_serial_interrupt);





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    while (1) {





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        /*





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         * Hung up serial communication if you hit keys on console for Serial.





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         */





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        if (LOCK()) {





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            if (ser.writeable()) {





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                ser.printf("0x%x\n", shared_resource);





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            }





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            UNLOCK();





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        }





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        wait_ms(100);





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    }





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}