Bluetooth upper layer stack

[pinseeker]

I have an application whereby i need to communicate with a Bluetooth device using the RFCOMM protocol. I'm not that familiar with bluetooth or its profiles! My question is if i use a bluetooth module with the Serial Port Profile firmware, does that mean i will have access to the RFCOMM protocol layer?

I would appreciate any help given....

Thanks

 

[gorkin]

For implement SPP You must have RFCOM implemented before. More information in SIG documentation.

Actually I am develop one application with TI microcontroller and Bluetooth serial module (This module not have any facilites, I start my program writing hci transport protocol, next others protocols)...

Gorkin.

 

[pinseeker]

Thanks, does that mean that i can access the RFCOMM protocol directly and bypass the SPP altogether?

Also, what bluetooth module do you use?

If i write an application using RFCOMM will it need to go through bluetooth approvals?

Thanks

 

[gorkin]

Hi brother!

RFCOM is just one layer. The next layer are services, one these services are SPP.
I am using BT3014 module with MSP430F1491 and one usb dongle.

No necessary approvals, because You not have access the radio hardware layer.

Gorkin.

 

[pinseeker]

Hi Gorkin,

What wired interface do you use between the BT module and microcontroller? SPI, UART, RS232...

Which is best for high data rates?

Thanks....again....

Pinseeker

 

[gorkin]

For physical transport between the microcontroller and bt module, I use TTL low voltage UART @ 115200bps.

The best solution are usb(in case of PC, because the PC UART are speed limitation), but for general purpose, serial solution are more easy for development and evaluation.

Gorkin.

 

[quinceanyos]

hi,

did you try this book before? maybe this one will help...

 

[pinseeker]

Thanks..

Can you suggest other books on bluetooth?

Pinseeker

 

[larryzhu]

Hi brother!

RFCOM is just one layer. The next layer are services, one these services are SPP.
I am using BT3014 module with MSP430F1491 and one usb dongle.

No necessary approvals, because You not have access the radio hardware layer.

Gorkin.

Hi: Grokin
If I have built the connection,how can I do for going to the high layer.L2CAP.RFCOM ect.? Thanks in advance.

 

[gorkin]

I am actually finishing my application using ad hoc conexion (in other words, no compatible with SIG standard).

I my case, I write the hci and l2cap layers, basead in SIG1.1

Gorkin.