Role switch Peripheral to Central

Hello Dialog Support !

We want to implement a role swap on DA14580:

When system boots starts on adverising mode: GAP_PERIPHERAL_SLV to be conectable from mobile devices when it's gets the data from mobile device we do a

cmd->operation = GAPM_RESET;
to the stack and set the device role cmd->role = GAP_CENTRAL_MST;

then a conection establised to the second sps_device and data transfered after that device 1 switch back to GAP_PERIPHERAL_SLV to advertise and waits again for conection.

we have used the sps_device project example and modify the below:

1st. try of role swap implementation please sugest the best solution:

app.c

static struct gapm_set_dev_config_cmd* app_easy_gap_dev_config_create_msg(void)
{
// Allocate a message for GAP
if (set_dev_config_cmd == NULL)
{
struct gapm_set_dev_config_cmd* cmd;
cmd = app_gapm_configure_msg_create();
set_dev_config_cmd = cmd;

cmd->operation = GAPM_SET_DEV_CONFIG;
cmd->role = user_gapm_conf.role;
memcpy(cmd->irk.key, user_gapm_conf.irk, KEY_LEN*sizeof(uint8_t));
cmd->appearance = user_gapm_conf.appearance;
cmd->appearance_write_perm = user_gapm_conf.appearance_write_perm;
cmd->name_write_perm = user_gapm_conf.name_write_perm;
cmd->max_mtu = user_gapm_conf.max_mtu;
cmd->con_intv_min = user_gapm_conf.con_intv_min;
cmd->con_intv_max = user_gapm_conf.con_intv_max;
cmd - > con_latency = user_gapm_conf.con_latency;
cmd->superv_to = user_gapm_conf.superv_to;
cmd->flags = user_gapm_conf.flags;
cmd->operation = GAPM_RESET; //MARIOS EDIT
cmd->role = GAP_CENTRAL_MST; //MARIOS EDIT
}
return (set_dev_config_cmd);
}

2nd. try implementation please sugest the best solution:

app.c

volatile uint8_t current_role = 1; //MARIOS EDIT 15/11/2020
static struct gapm_set_dev_config_cmd* app_easy_gap_dev_config_create_msg(void)
{
// Allocate a message for GAP
if (set_dev_config_cmd == NULL)
{
struct gapm_set_dev_config_cmd* cmd;
cmd = app_gapm_configure_msg_create();
set_dev_config_cmd = cmd;

if(USER_CONFIG)
{
cmd->operation = GAPM_SET_DEV_CONFIG;

if( 1 == current_role ){

cmd->role = user_gapm_conf.role;// CURENT ROLE IS GAP_PERIPHERAL_SLV System start Advertising! Marios edit
current_role = 0;

}else{
cmd->role = GAP_CENTRAL_MST; // CURENT ROLE IS GAP_CENTRAL_MST System start Scanning ! Marios edit
current_role = 1;
}
cmd->appearance = user_gapm_conf.appearance;
cmd->appearance_write_perm = user_gapm_conf.appearance_write_perm;
cmd->name_write_perm = user_gapm_conf.name_write_perm;
cmd->max_mtu = user_gapm_conf.max_mtu;
cmd->con_intv_min = user_gapm_conf.con_intv_min;
cmd->con_intv_max = user_gapm_conf.con_intv_max;
cmd - > con_latency = user_gapm_conf.con_latency;
cmd->superv_to = user_gapm_conf.superv_to;
cmd->flags = user_gapm_conf.flags;
memcpy(cmd->irk.key,user_gapm_conf.irk,KEY_LEN);
}

}
return (set_dev_config_cmd);
}

we are waiting for your precius help!
Thanks in advance,
Marios