I tried to set a GATT server and a GATT client for each Central and Peripheral, but code exceeds the memory limit.
Then i consider to transport by HCI. But I totally confused after watch the sdk document. Does the HCI must work with UART ? In hci_transport.c, the hci_transport_pkt_write function call function of slip to send data on UART port. Does it not transport data by Bluetooth ?