Hello World C++

Requirements

No specific requirement.

Description

These example shows how to use C++ on GAP9.

Code

C++

/* PMSIS includes */
#include "pmsis.h"
#include "math.h"

/* Task executed by cluster cores. */
void cluster_helloworld(void *arg)
{
    uint32_t core_id = pi_core_id(), cluster_id = pi_cluster_id();
    printf("[%d %d] Hello World!\n", cluster_id, core_id);
}

/* Cluster main entry, executed by core 0. */
void cluster_delegate(void *arg)
{
    printf("Cluster master core entry\n");
    /* Task dispatch to cluster cores. */
    pi_cl_team_fork(pi_cl_cluster_nb_cores(), cluster_helloworld, arg);
    printf("Cluster master core exit\n");
}

/* Program Entry. */
int main(void)
{
    printf("\n\n\t *** PMSIS HelloWorld ***\n\n");
    printf("Entering main controller\n");

    uint32_t core_id = pi_core_id(), cluster_id = pi_cluster_id();
    printf("[%d %d] Hello World!\n", cluster_id, core_id);

    struct pi_device cluster_dev;
    struct pi_cluster_conf cl_conf;

    /* Init cluster configuration structure. */
    pi_cluster_conf_init(&cl_conf);
    cl_conf.id = 0;                /* Set cluster ID. */
    /* Configure & open cluster. */
    pi_open_from_conf(&cluster_dev, &cl_conf);
    if (pi_cluster_open(&cluster_dev))
    {
        printf("Cluster open failed !\n");
        return -1;
    }

    /* Prepare cluster task and send it to cluster. */
    struct pi_cluster_task cl_task;
    pi_cluster_send_task_to_cl(&cluster_dev, pi_cluster_task(&cl_task, cluster_delegate, NULL));

    pi_cluster_close(&cluster_dev);

    printf("Bye !\n");
    return 0;
}