Robert Kennedy / Mbed OS TEN_mbedos_threads_robert

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Fork of TEN_mbedos_threads by Qmax

main.cpp@1:d1d5c33000fb, 2017-03-02 (annotated)

Committer:
narasimma23
Date:
Thu Mar 02 07:57:50 2017 +0000
Revision:
1:d1d5c33000fb
Parent:
0:95bee34b8805
Child:
2:967778096fa0
Thread test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
uLipe 0:95bee34b8805 1 /**
uLipe 0:95bee34b8805 2 * @brief first thread control program with MBED OS
uLipe 0:95bee34b8805 3 */
uLipe 0:95bee34b8805 4 #include "mbed.h"
uLipe 0:95bee34b8805 5 #include "rtos.h"
uLipe 0:95bee34b8805 6
narasimma23 1:d1d5c33000fb 7 #define THREAD_A "thread_a"
narasimma23 1:d1d5c33000fb 8 #define THREAD_B "thread_b"
narasimma23 1:d1d5c33000fb 9 #define THREAD_C "thread_c"
uLipe 0:95bee34b8805 10
uLipe 0:95bee34b8805 11 /* reserve the debbuger uart to shell interface */
uLipe 0:95bee34b8805 12 Serial pc_serial(USBTX,USBRX);
uLipe 0:95bee34b8805 13
narasimma23 1:d1d5c33000fb 14 /* declares threads for this demo: */
narasimma23 1:d1d5c33000fb 15 const size_t a_stk_size = 512;
narasimma23 1:d1d5c33000fb 16 uint8_t a_stk[a_stk_size];
narasimma23 1:d1d5c33000fb 17 Thread a_thread(osPriorityNormal, a_stk_size, &a_stk[0]);
narasimma23 1:d1d5c33000fb 18
narasimma23 1:d1d5c33000fb 19 const size_t b_stk_size = 512;
narasimma23 1:d1d5c33000fb 20 uint8_t b_stk[b_stk_size];
narasimma23 1:d1d5c33000fb 21 Thread b_thread(osPriorityNormal, b_stk_size, &b_stk[0]);
narasimma23 1:d1d5c33000fb 22
narasimma23 1:d1d5c33000fb 23 const size_t c_stk_size = 512;
narasimma23 1:d1d5c33000fb 24 uint8_t c_stk[c_stk_size];
narasimma23 1:d1d5c33000fb 25 Thread c_thread(osPriorityNormal, c_stk_size, &c_stk[0]);
uLipe 0:95bee34b8805 26
uLipe 0:95bee34b8805 27 /**
uLipe 0:95bee34b8805 28 * @brief thread a function
uLipe 0:95bee34b8805 29 */
narasimma23 1:d1d5c33000fb 30 static void thread(void const *buf)
uLipe 0:95bee34b8805 31 {
uLipe 0:95bee34b8805 32 uint32_t execs = 0;
narasimma23 1:d1d5c33000fb 33 pc_serial.printf("## started %s execution! ##\n\r", (char *)buf);
uLipe 0:95bee34b8805 34
uLipe 0:95bee34b8805 35 for(;;) {
uLipe 0:95bee34b8805 36 execs++;
uLipe 0:95bee34b8805 37 /* adds dummy processing */
uLipe 0:95bee34b8805 38 for(int i = 0 ; i < 0xFFFFFF; i++);
narasimma23 1:d1d5c33000fb 39 pc_serial.printf("## %s executed %d times! ##\n\r", (char *)buf, execs);
narasimma23 1:d1d5c33000fb 40 Thread::yield();
uLipe 0:95bee34b8805 41 }
uLipe 0:95bee34b8805 42 }
uLipe 0:95bee34b8805 43
uLipe 0:95bee34b8805 44
uLipe 0:95bee34b8805 45 /**
uLipe 0:95bee34b8805 46 * @brief main application loop
uLipe 0:95bee34b8805 47 */
uLipe 0:95bee34b8805 48 int main(void)
narasimma23 1:d1d5c33000fb 49 {
uLipe 0:95bee34b8805 50 pc_serial.baud(115200);
narasimma23 1:d1d5c33000fb 51 a_thread.start(callback(thread, (void *)THREAD_A));
narasimma23 1:d1d5c33000fb 52 b_thread.start(callback(thread, (void *)THREAD_B));
narasimma23 1:d1d5c33000fb 53 c_thread.start(callback(thread, (void *)THREAD_C));
uLipe 0:95bee34b8805 54 return 0;
uLipe 0:95bee34b8805 55 }