[PC-Ble-Driver] How To Increase the GATT Connect Link?

[TimCheng]

Hi Nordic Team,

Currently, i develop a software for fitting our application.

Env: Windows10,  Controller: 52832 SDK: PC-Ble-Driver.

SDK Link: NordicSemiconductor/pc-ble-driver: Desktop library for Bluetooth low energy development (github.com)

My Question is how to increase the ble link.

After i set the "ble_cfg.conn_cfg.params.gap_conn_cfg.conn_count = 3 or larger"  it will report NRF_ERROR_RESOURCES.

How to increase the controller ram for fixing this issue? or how to increase the ble link?

Actually. i need to implement multi-link in my windows's ble central. is there any way to fix this issue?

Thanks for Nordic Team.

[TimCheng]

static uint32_t ble_cfg_set(uint8_t conn_cfg_tag)
{
const uint32_t ram_start = 0; // Value is not used by ble-driver
uint32_t error_code;
ble_cfg_t ble_cfg;

// Configure the connection roles.
memset(&ble_cfg, 0, sizeof(ble_cfg));

ble_cfg.gap_cfg.role_count_cfg.adv_set_count = 1;//BLE_GAP_ADV_SET_COUNT_DEFAULT;
ble_cfg.gap_cfg.role_count_cfg.periph_role_count = 0;
ble_cfg.gap_cfg.role_count_cfg.central_role_count = 3;//MAX_PEER_COUNT;
ble_cfg.gap_cfg.role_count_cfg.central_sec_count = 0;

error_code = sd_ble_cfg_set(tuya_ble_port_adapter, BLE_GAP_CFG_ROLE_COUNT, &ble_cfg, ram_start);
if (error_code != NRF_SUCCESS)
{
tuya_printf("sd_ble_cfg_set() failed when attempting to set BLE_GAP_CFG_ROLE_COUNT. Error code: 0x%02X\n", error_code);
return error_code;
}

memset(&ble_cfg, 0x00, sizeof(ble_cfg));
ble_cfg.conn_cfg.conn_cfg_tag = conn_cfg_tag;
//ble_cfg.conn_cfg.params.gap_conn_cfg.conn_count = 3;//MAX_PEER_COUNT;
ble_cfg.conn_cfg.params.gatt_conn_cfg.att_mtu = 247;

error_code = sd_ble_cfg_set(tuya_ble_port_adapter, BLE_CONN_CFG_GATT, &ble_cfg, ram_start);
if (error_code != NRF_SUCCESS)
{
tuya_printf("sd_ble_cfg_set() failed when attempting to set BLE_CONN_CFG_GATT. Error code: 0x%02X\n", error_code);
return error_code;
}

return NRF_SUCCESS;
}

[TimCheng]

After setting as below, it report 18,NRF_ERROR_CONN_COUNT

[TimCheng]