Return-Path: Subject: Re: [Bluez-devel] BT not responding From: Marcel Holtmann To: zubiwat Cc: devel Bluetooth In-Reply-To: <001c01c41380$83c390b0$fcca010a@lysydziadek> References: <001c01c41380$83c390b0$fcca010a@lysydziadek> Content-Type: text/plain Message-Id: <1080390043.2281.49.camel@pegasus> Mime-Version: 1.0 Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Date: Sat, 27 Mar 2004 13:20:44 +0100 Hi Maciej, there is no need to post this on both mailing lists. > Why my BT device isn't responding when I'm sending any commands for > example to read BT_ADDR like this: 0x01 0x00 0x09. > It doesn't respond to me, even with an error code - nothing. > But when I use first code from blueZ hciconfig like this > > int clen = 0, i; /* Command len */ > static int csr_seq = 0; /* Sequence number of command */ > int divisor; > > /* Try to read the build ID of the CSR chip */ > clen = 5 + (5 + 6) * 2; > /* HCI header */ > cmd[0] = HCI_COMMAND_PKT; > cmd[1] = 0x09; /* CSR command */ > cmd[2] = 0xfc; /* MANUFACTURER_SPEC */ > cmd[3] = 1 + (5 + 6) * 2; /* len */ > /* CSR MSG header */ > cmd[4] = 0xC2; /* first+last+channel=BCC */ > /* CSR BCC header */ > cmd[5] = 0x00; /* type = GET-REQ */ > cmd[6] = 0x00; /* - msB */ > cmd[7] = 5 + 4; /* len */ > cmd[8] = 0x00; /* - msB */ > cmd[9] = csr_seq & 0xFF;/* seq num */ > cmd[10] = (csr_seq >> 8) & 0xFF; /* - msB */ > csr_seq++; > cmd[11] = 0x19; /* var_id = CSR_CMD_BUILD_ID */ > cmd[12] = 0x28; /* - msB */ > cmd[13] = 0x00; /* status = STATUS_OK */ > cmd[14] = 0x00; /* - msB */ > /* CSR BCC payload */ > memset(cmd + 15, 0, 6 * 2); > > do{ > for (i=0; i < clen+1; i++) PutByteU0 (cmd[i]); > > read_hci_event(resp,100); > > }while (resp[1] != 0xff); > > > /* Try to read the current speed of the CSR chip */ > clen = 5 + (5 + 4)*2; > /* -- HCI header */ > cmd[0] = HCI_COMMAND_PKT; > cmd[1] = 0x09; /* CSR command */ > cmd[2] = 0xfc; /* MANUFACTURER_SPEC */ > cmd[3] = 1 + (5 + 4)*2; /* len */ > /* -- CSR BCC header -- */ > cmd[9] = csr_seq & 0xFF; /* seq num */ > cmd[10] = (csr_seq >> 8) & 0xFF; /* - msB */ > csr_seq++; > cmd[11] = 0x02; /* var_id = CONFIG_UART */ > cmd[12] = 0x68; /* - msB */ > > /* Now, create the command that will set the UART speed */ > /* CSR BCC header */ > cmd[5] = 0x02; /* type = SET-REQ */ > cmd[6] = 0x00; /* - msB */ > cmd[9] = csr_seq & 0xFF; /* seq num */ > cmd[10] = (csr_seq >> 8) & 0xFF;/* - msB */ > csr_seq++; > > divisor = (921600*64+7812)/15625; > > /* No parity, one stop bit -> divisor |= 0x0000; */ > cmd[15] = (divisor) & 0xFF; /* divider */ > cmd[16] = (divisor >> 8) & 0xFF; /* - msB */ > /* The rest of the payload will be 0x00 */ > > for (i=0; i < clen; i++) PutByteU0 (cmd[i]); > > It answers like this: 04 FF 13 C2 01 00 09 00 02 00 02 68 00 00 BF 0E > 00 00 00 00 > What is it? Is it kind of special bits of csr chip or what? > I know it is event but after this BT responds only for bad commands > like this 04 10 01 fe but when I try read BT_ADDR it's quiet. > What this code is up to? This is CSR specific and you must ask your module manufacturer for more details. > Please send me UART specification or sth where it's written how to set > this up and howto communicate with csr chip. It's very important for > me ! The H:4 UART specification is part of the Bluetooth 1.1 specification. > I spent almost 2 weeks to find out how to communicate whit it and > nothing works good. I don't know where to find some info. I looked > almost everywhere? Start using BlueZ and don't worry about it or this is the wrong mailing list for you ;) Regards Marcel ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel