[Bluez-users] BlueCore2 speed problem!

[Bluez-users] BlueCore2 speed problem!

[宁 宁]

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Hi,
I use two BlueCore2-External modules to transfer data through UART interface,but the max speed is only 5KB/s!!!  Howerver,in the data sheet,it says "The maximum UART data rate is 1.5 MBaud"!!   1.5Mb/s / 8=192KB/s,am i  right?
 
so,why my speed is slow? How can I do to improve the speed??
 
hci0:   Type: UART
        BD Address: 4A:49:4E:00:15:2F ACL MTU: 384:4 SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:70 acl:0 sco:0 events:7 errors:0
        TX bytes:34 acl:0 sco:0 commands:7 errors:0
        Features: 0xff 0xff 0x0f 0x00 0x00 0x00 0x00 0x00
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy:
        Link mode: SLAVE ACCEPT
        Name: 'B'
        Class: 0x000000
        Service Classes: Unspecified
        Device Class: Miscellaneous,
        HCI Ver: 1.1 (0x1) HCI Rev: 0x2c1 LMP Ver: 1.1 (0x1) LMP Subver: 0x2c1
        Manufacturer: Cambridge Silicon Radio (10)
 
gadfly
 

		
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Re: [Bluez-users] BlueCore2 speed problem!

[Marcel Holtmann]

Hi Gadfly,

> I use two BlueCore2-External modules to transfer data through UART
> interface,but the max speed is only 5KB/s!!!  Howerver,in the data
> sheet,it says "The maximum UART data rate is 1.5 MBaud"!!   1.5Mb/s /
> 8=192KB/s,am i  right?
>  
> so,why my speed is slow? How can I do to improve the speed??

what hciattach sequence do you use?

Regards

Marcel




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