TI CC1101 Radio Project

[Dave]

I have successfully used the RSSI from a receiver for TPM testing at work while designing an AGC circuit for a TPM Transmitter program. just remember that if using ASK transmissions you will need a fast A/D and you should gather enough data during a xmission to see the PEAK level. I have used this to program an 8 bit attenuator at the frontend of the receiver using successive approximation routine I wrote. That way each of the test Transmitters have the same received signal strength to the receiver for timing verification purposes. It is NOT as critical for the A/D if you are using FSK mode. I wish I could share more but I wrote the software for the company I work for... Good Luck...

[LinkMTech]

You're welcome Steve,
Yup, that's one of them. I also used the other where you have to connect an external antenna.
The device has a digital RSSI register that can be read continuously. I never got to it in that last product where I was going to use for "clear channel search".
The code provided sets the transmitter modulation to 4 level FSK at +-39KHz deviation if I recall.

It can be configured to be a transmitter only, receiver only or switch between the two modes, it's up to you.
Your application is feasible, keeping air time management in mind to avoid transmission collisions, just like you would anyways with direct data connections.

Here's 1 data sheet on the RSSI you can go through. I couldn't upload the other because of it's size but can get it here.

Dave- What is TPM?

[ecoli-557]

thanks Guys-
My modules are due in tomorrow, however, I have to go out of town on business so it will have to wait a bit longer darn it.
I really can't wait to see this work!
The MRF module never did work nor could I find ANYONE who saif they got it to work in packets!
Thanks again. Will keep you posted on progress - and code.
Regards to All.

[LinkMTech]

Yeah, I bought a pair of them MRF's too but only ended up staring at them cuz they look cool.

[ecoli-557]

Yup. I should have my radios in waiting for me Monday. Then I can see about playing with them.......

[LinkMTech]

Steve,
I remembered unsuccessfully trying to solder rework wire to the module's pads only to damage it.
Do you make your PCBs?

I have some older revision PCBs with footprints for these module if you're interested. No strings, just willing to help.

[ecoli-557]

I would REALLY appreciate that. I just looked at my radio development 'kits' (2) and all I got was the module with an antenna! It looks as if these plug into something else........
So, it looks like I am going to make a cheap proto pcb....... I use Eagle, what do you use?
Regards,
Steve