如上图:
代码:
else if ( centralDiscState == BLE_DISC_STATE_CHAR ) { // Characteristic found, store handle if ( pMsg->method == ATT_READ_BY_TYPE_RSP && pMsg->msg.readByTypeRsp.numPairs > 0 ) { centralCharHdl = BUILD_UINT16( pMsg->msg.readByTypeRsp.pDataList[0], pMsg->msg.readByTypeRsp.pDataList[1] ); centralProcedureInProgress = FALSE; // Start do read or write tmos_start_task( centralTaskId, START_READ_OR_WRITE_EVT, DEFAULT_READ_OR_WRITE_DELAY); // Display Characteristic 1 handle PRINT("Found Characteristic 4 handle : %x \n",centralCharHdl); // Do a write attWriteReq_t req; req.cmd = FALSE; req.sig = FALSE; req.handle = centralCharHdl+1; req.len = 2; //centralConnHandle=0; PRINT( "222!\n"); req.pValue = GATT_bm_alloc(centralConnHandle,ATT_WRITE_REQ,req.len,NULL,0); if ( req.pValue != NULL ) { req.pValue[0] = 0x01; req.pValue[1] = 0x00; PRINT( "333!\n"); if( GATT_WriteCharValue(centralConnHandle,&req,centralTaskId) == SUCCESS ) { centralProcedureInProgress = TRUE; PRINT( "Open Notify ok!\n"); //centralDoWrite = !centralDoWrite; tmos_start_task( centralTaskId, START_READ_OR_WRITE_EVT, DEFAULT_READ_OR_WRITE_DELAY); } else { GATT_bm_free((gattMsg_t *)&req, ATT_WRITE_REQ); PRINT( "Open Notify Fail!\n"); } } } centralDiscState = BLE_DISC_STATE_IDLE; }
我用CC2541主机打开CC2541从机的char4通知使能是可以的。
用沁恒就失败。
请问高手,哪里有错?谢谢
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CH592: RISC-V内核BLE5.4无线MCU