你好！
想用两个585互传信息，测试了好久DSPS例程，没有找到办法。我用的是dsps_device_dma和dsps_host_dma。能否帮我下以下问题：
1）设备代码在什么地方（用什么函数）读取主机传来的数据？设备代码在什么地方（用什么函数）传数据给主机？
谢谢了
你好，
主机 - >设备，设备接收数据，从底层到上层，数据的流向是：
BLE STACK- > GATTC_WRITE_REQ_IND - > gattc_write_req_ind_handler - > sps_server_data_receive - > SPS_SERVER_DATA_WRITE_IND - > user_sps_server_data_write_ind_handler
设备 - >主机，设备发送数据，从上层到底层，数据流向是：
user_send_ble_data - > SPS_SERVER_DATA_TX_REQ - > sps_server_data_tx_req_handler - > sps_server_send_data - > GATTC_SEND_EVT_CMD（GATTC_NOTIFY） - > BLE STACK
你好，
主机 - >设备，设备接收数据，从底层到上层，数据的流向是：
BLE STACK- > GATTC_WRITE_REQ_IND - > gattc_write_req_ind_handler - > sps_server_data_receive - > SPS_SERVER_DATA_WRITE_IND - > user_sps_server_data_write_ind_handler
设备 - >主机，设备发送数据，从上层到底层，数据流向是：
user_send_ble_data - > SPS_SERVER_DATA_TX_REQ - > sps_server_data_tx_req_handler - > sps_server_send_data - > GATTC_SEND_EVT_CMD（GATTC_NOTIFY） - > BLE STACK