Quickstart

  :
/* define the static object dictionary */
const CO_OBJ ClockOD[] = {
        :
    /* here is your object dictionary */
        :
    CO_OBJ_DIR_ENDMARK  /* mark end of used objects */
};
/* set number of object entries */
const uint16_t ClockODLen = sizeof(ClockOD)/sizeof(CO_OBJ);
  :

  :
    {CO_KEY(0x1000, 0, CO_UNSIGNED32|CO_OBJ_D__R_), 0, (uintptr_t)0},
    {CO_KEY(0x1001, 0, CO_UNSIGNED8 |CO_OBJ____R_), 0, (uintptr_t)&Obj1001_00_08},
    {CO_KEY(0x1005, 0, CO_UNSIGNED32|CO_OBJ_D__R_), 0, (uintptr_t)0x80},
    {CO_KEY(0x1017, 0, CO_UNSIGNED16|CO_OBJ_D__R_), 0, (uintptr_t)0},

    {CO_KEY(0x1018, 0, CO_UNSIGNED8 |CO_OBJ_D__R_), 0, (uintptr_t)4},
    {CO_KEY(0x1018, 1, CO_UNSIGNED32|CO_OBJ_D__R_), 0, (uintptr_t)0},
    {CO_KEY(0x1018, 2, CO_UNSIGNED32|CO_OBJ_D__R_), 0, (uintptr_t)0},
    {CO_KEY(0x1018, 3, CO_UNSIGNED32|CO_OBJ_D__R_), 0, (uintptr_t)0},
    {CO_KEY(0x1018, 4, CO_UNSIGNED32|CO_OBJ_D__R_), 0, (uintptr_t)0},
  :

uint8_t Obj1001_00_08 = 0;

  :
    {CO_KEY(0x1200, 0, CO_UNSIGNED8 |CO_OBJ_D__R_), 0, (uintptr_t)2},
    {CO_KEY(0x1200, 1, CO_UNSIGNED32|CO_OBJ_DN_R_), 0, CO_COBID_SDO_REQUEST()},
    {CO_KEY(0x1200, 2, CO_UNSIGNED32|CO_OBJ_DN_R_), 0, CO_COBID_SDO_RESPONSE()},
  :

  :
    {CO_KEY(0x2100, 0, CO_UNSIGNED8 |CO_OBJ_D__R_), 0, (uintptr_t)3},
    {CO_KEY(0x2100, 1, CO_UNSIGNED32|CO_OBJ___PR_), 0, (uintptr_t)&Obj2100_01_20},
    {CO_KEY(0x2100, 2, CO_UNSIGNED8 |CO_OBJ___PR_), 0, (uintptr_t)&Obj2100_02_08},
    {CO_KEY(0x2100, 3, CO_UNSIGNED8 |CO_OBJ___PR_), CO_TASYNC, (uintptr_t)&Obj2100_03_08},
  :

uint32_t Obj2100_01_20 = 0;
uint8_t  Obj2100_02_08 = 0;
uint8_t  Obj2100_03_08 = 0;

  :
    {CO_KEY(0x1800, 0, CO_UNSIGNED8 |CO_OBJ_D__R_), 0, (uintptr_t)2},
    {CO_KEY(0x1800, 1, CO_UNSIGNED32|CO_OBJ_DN_R_), 0, CO_COBID_TPDO_DEFAULT(0)},
    {CO_KEY(0x1800, 2, CO_UNSIGNED8 |CO_OBJ_D__R_), 0, (uintptr_t)254},
  :

  :
    {CO_KEY(0x1A00, 0, CO_UNSIGNED8 |CO_OBJ_D__R_), 0, (uintptr_t)3},
    {CO_KEY(0x1A00, 1, CO_UNSIGNED32|CO_OBJ_D__R_), 0, CO_LINK(0x2100, 0x01, 32)},
    {CO_KEY(0x1A00, 2, CO_UNSIGNED32|CO_OBJ_D__R_), 0, CO_LINK(0x2100, 0x02,  8)},
    {CO_KEY(0x1A00, 3, CO_UNSIGNED32|CO_OBJ_D__R_), 0, CO_LINK(0x2100, 0x03,  8)},
  :

#include "co_core.h"
    :
/* Define some default values for our CANopen node: */
#define APP_NODE_ID       1u                  /* CANopen node ID             */
#define APP_BAUDRATE      250000u             /* CAN baudrate                */
#define APP_TMR_N         16u                 /* Number of software timers   */
#define APP_TICKS_PER_SEC 1000u               /* Timer clock frequency in Hz */
#define APP_OBJ_N         128u                /* Object dictionary max size  */
    :
/* Each software timer needs some memory for managing
 * the lists and states of the timed action events.
 */
CO_TMR_MEM TmrMem[APP_TMR_N];

/* Each SDO server needs memory for the segmented or
 * block transfer requests.
 */
uint8_t SdoSrvMem[CO_SDOS_N * CO_SDO_BUF_BYTE];
    :
/* Collect all node specification settings in a single
 * structure for initializing the node easily.
 */
CO_NODE_SPEC AppSpec = {
    APP_NODE_ID,             /* default Node-Id                */
    APP_BAUDRATE,            /* default Baudrate               */
    (CO_OBJ *)&ClockOD[0],   /* pointer to object dictionary   */
    APP_OBJ_N,               /* object dictionary max length   */
    NULL,                    /* no EMCY info fields (unused)   */
    &TmrMem[0],              /* pointer to timer memory blocks */
    APP_TMR_N,               /* number of timer memory blocks  */
    APP_TICKS_PER_SEC,       /* timer clock frequency in Hz    */
    (CO_IF_DRV *)&AppDriver, /* select drivers for application */
    &SdoSrvMem[0]            /* SDO Transfer Buffer Memory     */
};

#include "co_core.h"

/* get external node specification */
extern const CO_NODE_SPEC AppSpec;

/* Allocate a global CANopen node object */
CO_NODE Clk;

/* main entry function */
void main(int argc, char *argv[])
{
    uint32_t ticks;

    /* Initialize your hardware layer and the CANopen stack.
     * Stop execution if an error is detected.
     */
    /* BSPInit(); */
    CONodeInit(&Clk, (CO_NODE_SPEC *)&AppSpec);
    if (CONodeGetErr(&Clk) != CO_ERR_NONE) {
        while(1);
    }

    /* Use CANopen software timer to create a cyclic function
     * call to the callback function 'AppClock()' with a period
     * of 1s (equal: 1000ms).
     */
    ticks = COTmrGetTicks(&Clk.Tmr, 1000, CO_TMR_UNIT_1MS);
    COTmrCreate(&Clk.Tmr, 0, ticks, AppClock, &Clk);

    /* Start the CANopen node and set it automatically to
     * NMT mode: 'OPERATIONAL'.
     */
    CONodeStart(&Clk);
    CONmtSetMode(&Clk.Nmt, CO_OPERATIONAL);

    /* In the background loop we process received CAN frames
     * and executes elapsed action callback functions.
     */
    while (1) {
        CONodeProcess(&Clk);
        COTmrProcess(&Clk.Tmr);
    }
}

/* timer callback function */
static void AppClock(void *p_arg)
{
    CO_NODE  *node;
    CO_OBJ   *od_sec;
    CO_OBJ   *od_min;
    CO_OBJ   *od_hr;
    uint8_t   second;
    uint8_t   minute;
    uint32_t  hour;

    /* For flexible usage (not needed, but nice to show), we use the argument
     * as reference to the CANopen node object. If no node is given, we ignore
     * the function call by returning immediatelly.
     */
    node = (CO_NODE *)p_arg;
    if (node == 0) {
        return;
    }

    /* Main functionality: when we are in operational mode, we get the current
     * clock values out of the object dictionary, increment the seconds and
     * update all clock values in the object dictionary.
     */
    if (CONmtGetMode(&node->Nmt) == CO_OPERATIONAL) {

        od_sec = CODictFind(&node->Dict, CO_DEV(0x2100, 3));
        od_min = CODictFind(&node->Dict, CO_DEV(0x2100, 2));
        od_hr  = CODictFind(&node->Dict, CO_DEV(0x2100, 1));

        COObjRdValue(od_sec, node, (void *)&second, sizeof(second), 0);
        COObjRdValue(od_min, node, (void *)&minute, sizeof(minute), 0);
        COObjRdValue(od_hr , node, (void *)&hour  , sizeof(hour),   0);

        second++;
        if (second >= 60) {
            second = 0;
            minute++;
        }
        if (minute >= 60) {
            minute = 0;
            hour++;
        }

        COObjWrValue(od_hr , node, (void *)&hour  , sizeof(hour),   0);
        COObjWrValue(od_min, node, (void *)&minute, sizeof(minute), 0);
        COObjWrValue(od_sec, node, (void *)&second, sizeof(second), 0);
    }
}

   :
                                              /* select application drivers: */
#include "co_can_dummy.h"                     /* CAN driver                  */
#include "co_timer_dummy.h"                   /* Timer driver                */
#include "co_nvm_dummy.h"                     /* NVM driver                  */
   :
/* Select the drivers for your application. For possible
 * selections, see the directory /drivers. In this example
 * we select the driver templates. You may fill them with
 * your specific hardware functionality.
 */
const CO_IF_DRV AppDriver = {
    &DummyCanDriver,
    &DummyTimerDriver,
    &DummyNvmDriver
};
   :

#include "co_core.h"
   :
/* get external CANopen node */
extern CO_NODE Clk;
   :
void App_TmrIsrHandler(void)
{
    /* collect elapsed timed actions */
    COTmrService(&Clk.Tmr);
}