co_sim/appl/mdl.c

#include "plt.h"
#include "mdl.h"

int random_range(int min, int max)
{
    return min + rand() / (RAND_MAX / (max - min + 1) + 1);
}

void mdl_sim()
{
    MDL.co_ppm = random_range(42, 60);
}

void mdl_prepare()
{
    MDL.co_ppm = random_range(42, 60);
    MDL.co_alarm = 0;
}

void from_modbus_to_dev()
{
    // usHoldingRegisters[0x6020] = uab;

    return 0;
}

int from_dev_to_modbus()
{
    // uab = usHoldingRegisters[0x6020];

    return 0;
}

void update_states()
{
}

static void *mdl_thrd_main(void *param)
{
    mdl_prepare();
    from_dev_to_modbus();

    while (1)
    {
        from_modbus_to_dev();
        mdl_sim();
        from_dev_to_modbus();
        usleep(10000); /* 10ms */
    }
    return NULL;
}

int mdl_init()
{
    log_dbg("%s, ++", __func__);
    int ret = 0;
    pthread_t xthrd;
    if (pthread_create(&xthrd, NULL, mdl_thrd_main, NULL) != 0)
    {
        log_dbg("%s, pthread_create fail", __func__);
        ret = -1;
    }
    log_dbg("%s, --, ret: %d", __func__, ret);
    return ret;
}