Hi,
I have created a custom service, and now I want to add different characteristics to it but with completely different uuids, not only the 12-13 octets.
This service will have 23 characteristics with completely different UUIDS. I tried to implement this by calling sd_ble_uuid_vs_add() and then sd_ble_gatts_characteristic_add() to every characteristic.
The problem is that when I try to se it on my phone on some characteristics it seems that the base uuid is not changed. It is like the first thrre characteristics have the correct UUIDs but the following one have the base UUID from the third one and only change the 12-13 octets to the correct one.
I am not sure if this is a visual bug on the phone, since I had a previous error that I changed the UUID but only after some complete resets of the phone I got the correct UUID displayed.
I already tried to reboot the phone 4 times and it is displayed everytime the same way.
If anyone with the same error or with some help would be apreciated.
I am using SDK11 with SD 130 on a nRF51-DK
Thank you for the help, Jorge
EDIT 1:
ble_uuid128_t base1 = CHAR1_BASE;
sd_ble_uuid_vs_add(&base1, &p_service->uuid_type); //I change the base uuid for the first characteristic
Char1_value_char_add(p_service, p_service_init); //were I define all the characteristic's properties for the first one and also add the 16-bit UUIDs to the new base
ble_uuid128_t base2 = CHAR2_BASE;
sd_ble_uuid_vs_add(&base2, &p_service->uuid_type); //I change the base uuid for the second characteristic
Char2_value_char_add(p_service, p_service_init); //were I define all the characteristic's properties for the second one and also add the 16-bit UUIDs to the new base
I do this 23 times, all with different base values.
EDIT 2:
#define CHAR1_BASE {{0x11, 0x22, 0x33, 0x44...}};
#define CHAR2_BASE {{0x22, 0x33, 0x44, 0x55...}};
#define CHAR3_BASE {{0x33, 0x44, 0x55, 0x66...}};
test
#define CHAR1 0xFFFF
#define CHAR2 0xEEEE
#define CHAR3 0xDDDD
test
//Create the primary service and after that I need to change the base uuids and add the characteristics.
ble_uuid128_t base1 = CHAR1_BASE;
ble_uuid128_t base2 = CHAR2_BASE;
ble_uuid128_t base3 = CHAR3_BASE;
sd_ble_uuid_vs_add(&base1, &p_service->uuid_type); //changing the base for the first characteristic
Char1_value_char_add(p_service, p_service_init);
//add the relevant properties of the characteristic in a function, the following is what is inside this function
Char1_value_char_add(ble_service_t *p_cus, const ble_service_init_t *p_cus_init)
{
uint32_t err_code;
ble_gatts_char_md_t char_md;
ble_gatts_attr_t attr_char_value;
ble_uuid_t ble_uuid;
ble_gatts_attr_md_t attr_md;
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.read = 1;
char_md.char_props.write = 1;
char_md.char_props.notify = 1;
char_md.char_props.write_wo_resp = 0;
char_md.p_char_user_desc = NULL;
char_md.p_char_pf = NULL;
char_md.p_user_desc_md = NULL;
char_md.p_cccd_md = NULL;
char_md.p_sccd_md = NULL;
memset(&attr_md, 0, sizeof(attr_md));
attr_md.read_perm = p_cus_init->custom_value_char_attr_md.read_perm;
attr_md.write_perm = p_cus_init->custom_value_char_attr_md.write_perm;
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 1;
attr_md.wr_auth = 1;
attr_md.vlen = 0;
ble_uuid.type = p_cus->uuid_type;
ble_uuid.uuid = CHAR1; //will add the 16-bit UUID
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &ble_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = sizeof(uint8_t);
attr_char_value.init_offs = 0;
attr_char_value.max_len = sizeof(uint8_t);
err_code = sd_ble_gatts_characteristic_add(p_cus->service_handle, &char_md,
&attr_char_value,
&p_cus->custom_value_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}
return NRF_SUCCESS;
}
