C# and CC2540 communication

Osman Esen

Other Parts Discussed in Thread: CC2540

Hello everyone.

I have made a serial write and read code in C# and i want to transfer the writes through bluetooth 4.0 (low power bluetooth) in C#. I want to use a CC2540 bluetooth 4.0 usb dongle kit as transmitter, and a CC2540 bluetooth 4.0 keyfob kit as a receiver. Is this possible ?

over 12 years ago

0 Sign Bit over 12 years ago

Expert 1570 points

Yes, it is possible.

0 Osman Esen over 12 years ago in reply to Sign Bit

Intellectual 740 points

Thanks for the reply.

Do you know how i can use this USB dongle to transmit data ?

0 Sign Bit over 12 years ago in reply to Osman Esen

Expert 1570 points

The USB dongle will be visible to the application as a plain old serial port. You open that, then you send and receive packets formatted according to the HCI. Check out "TI BLE Vendor Specific HCI Reference Guide" document available in the BLE 1.3.1 software release.

0 Osman Esen over 12 years ago in reply to Sign Bit

Intellectual 740 points

Thanks for the reply.

I have found this document, and i'm reading about HCI packets. How do i open the USB dongle as a serial port ?. If i open USB Dongle port in btool, this port isn't available in the C# program.

0 Sign Bit over 12 years ago in reply to Osman Esen

Expert 1570 points

Osman Esen said:

I have found this document, and i'm reading about HCI packets. How do i open the USB dongle as a serial port ?. If i open USB Dongle port in btool, this port isn't available in the C# program.

BTool is an application that talks to the dongle, just as your future C# application. Being a serial device, only one application can talk to it at one time. Why would you want to have it attached to both BTool and your application at the same time?

0 Osman Esen over 12 years ago in reply to Sign Bit

Intellectual 740 points

Okay.. So i must send those packets as a string in my C# program ?.

0 Sign Bit over 12 years ago in reply to Osman Esen

Expert 1570 points

I'm not familiar with C#, but I would expect you need to send them as a byte buffer of some sort.

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C# and CC2540 communication