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#include "mbed.h"
#include "test_env.h"
#include "rtos.h"
#define SIGNALS_TO_EMIT 100
#define SIGNAL_HANDLE_DELEY 25
#define SIGNAL_SET_VALUE 0x01
/*
* The stack size is defined in cmsis_os.h mainly dependent on the underlying toolchain and
* the C standard library. For GCC, ARM_STD and IAR it is defined with a size of 2048 bytes
* and for ARM_MICRO 512. Because of reduce RAM size some targets need a reduced stacksize.
*/
#if defined(TARGET_STM32L053R8) || defined(TARGET_STM32L053C8)
#define STACK_SIZE DEFAULT_STACK_SIZE/4
#else
#define STACK_SIZE DEFAULT_STACK_SIZE
#endif
DigitalOut led(LED1);
volatile int signal_counter = 0;
void led_thread(void const *argument) {
while (true) {
// Signal flags that are reported as event are automatically cleared.
Thread::signal_wait(SIGNAL_SET_VALUE);
led = !led;
signal_counter++;
}
}
int main (void) {
MBED_HOSTTEST_TIMEOUT(20);
MBED_HOSTTEST_SELECT(default_auto);
MBED_HOSTTEST_DESCRIPTION(Signals messaging);
MBED_HOSTTEST_START("RTOS_4");
Thread thread(led_thread, NULL, osPriorityNormal, STACK_SIZE);
bool result = true;
while (true) {
Thread::wait(2 * SIGNAL_HANDLE_DELEY);
thread.signal_set(SIGNAL_SET_VALUE);
if (signal_counter == SIGNALS_TO_EMIT) {
printf("Handled %d signals\r\n", signal_counter);
break;
}
}
MBED_HOSTTEST_RESULT(result);
return 0;
}
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