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Hello,
my PSoC 6 acts as a central, connects with a peripheral and try to read its data (array with 20 byte)
with
****************************************
cy_stc_ble_gattc_read_req_t myVal;
printf("Start reading\n\r");
myVal.attrHandle = cy_ble_customCServ[CY_BLE_CUSTOMC_HEAT_COST_ALLOCATOR_SERVICE_SERVICE_INDEX].customServChar[CY_BLE_CUSTOMC_HEAT_COST_ALLOCATOR_SERVICE_SENSORDATA_CHAR_INDEX].customServCharHandle[0];
myVal.connHandle = cy_ble_connHandle[0];
while(Cy_BLE_GATTC_ReadCharacteristicValue(&myVal ) != CY_BLE_SUCCESS);
printf("BLE GATTC read success\n\r");
*********************************************
This works without error, but where is the data?
How to connect my empty array with the result of Cy_BLE_GATTC_ReadCharacteristicValue() ?
I found only one Example for an PSoC6 Central which writes data to an peripheral.
Do you have a democode for using this function ?
Thanks for help!
Solved! Go to Solution.
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Hello Peter,
After calling the function Cy_BLE_GATTC_ReadCharacteristicValue() Internally, Read Request is sent to the peer GATT Server. If the read operation is successful, GATT Server sends a Read Response. This response results in CY_BLE_EVT_GATTC_READ_RSP event at GATT Client's end. This event indicates that the 'Read Response' is received from GATT Server device. The event parameter is a pointer to a structure of type cy_stc_ble_gattc_read_rsp_param_t where we can get the actual value.
struct cy_stc_ble_gattc_read_rsp_param_t.
Read response parameter type received from server.
Data fields:
cy_stc_ble_gatt_value_t value
Attribute Value.
cy_stc_ble_conn_handle_t connHandle
Connection handle.
Thanks,
P Yugandhar.
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Hello Peter,
After calling the function Cy_BLE_GATTC_ReadCharacteristicValue() Internally, Read Request is sent to the peer GATT Server. If the read operation is successful, GATT Server sends a Read Response. This response results in CY_BLE_EVT_GATTC_READ_RSP event at GATT Client's end. This event indicates that the 'Read Response' is received from GATT Server device. The event parameter is a pointer to a structure of type cy_stc_ble_gattc_read_rsp_param_t where we can get the actual value.
struct cy_stc_ble_gattc_read_rsp_param_t.
Read response parameter type received from server.
Data fields:
cy_stc_ble_gatt_value_t value
Attribute Value.
cy_stc_ble_conn_handle_t connHandle
Connection handle.
Thanks,
P Yugandhar.