RF Modules

[tonyfelloni]

Hey

I have 2 wireless RF Transceivers. The datasheet states that the baud rate is 19200 and that it is customizable. It mentions nothing about how to change it.

What i'm unsure about is if the baud rates I am using for my serout and serin commands need to match the Rf modules baud rate, or does the baud rate setting on the transceivers just control the rate of data from one module to another allowing me to feed in whatever baud rate I like no matter what the modules are set to.

Cheers

Tony

[mackrackit]

Hey,
You forgot to tell the make, model, and mileage of the modules

[tonyfelloni]

Hey cheers for the reply.

Sorry for not posting the data sheet. I thought it was more of a general question assuming most RF module opperate in a semi similier manner. As for the make and model, there pretty much a no name device, I bought them off ebay, model Cy2198TR-a. Have attached the data sheet that came with them.

Best Regards

Tony

http://www.sure-electronics.net/rf,audio/GP-GC010.pdf

[skimask]

http://www.sure-electronics.net/rf,audio/GP-GC010.pdf

That datasheet pretty much blows IMO. Looks to me like a car owners manual...doesn't tell you how to overhaul the engine, just what the car is supposed to do.
Any other data around for this module?

[mackrackit]

I thought it was more of a general question assuming most RF module opperate in a semi similier manner.

That would be to easy. Some transmit the data as it is received no matter what the baud with out configuring (up to a point) and others can/need be configured.

The data sheet you have does not help.
Maybe Dave Houston will see this thread, he has a loot of experience with RF and maybe he has seen this one before.

Is this what it looks like?
http://www.sure-electronics.net/rf,a...-GC010_1_b.jpg

[tonyfelloni]

Is this what it looks like?
http://www.sure-electronics.net/rf,a...-GC010_1_b.jpg

That's the one alright!

Thanks for all the input.
I have managed to get these working, they will only work when the baud rate is set to 19200 and the DEFINE HSER_TXSTA must be set to 24h when working off a 4Mhz Crystal.

Thanks

Tony

[Pedro Santos]

Hello tonyfelloni

I look for a similar wireless solution. What you say about this moduls? Work´s good? It's hard to use it? Have you a sample code that works that you can share?

Thanks
Best regards
Pedro

[RussMartin]

That's fairly sparse as far as a useful data sheet. (It's also a good example of why I don't purchase a module or component until after I've seen its data sheet!)

Lacking more specific information, you can probably assume default channel, mode, and baud rate at startup. I wouldn't count on much of a buffer, so stick to 19,200 and try it that way.

[Luciano]

Hi,

(what I understand from the manual).
http://www.sure-electronics.net/rf,audio/GP-GC010.pdf

The baud rate is 19200. The module has a TX buffer of 64 bytes.
When you send, the data (up to 64 bytes) is stored first in the
TX buffer of the module and then, 10ms after that the last byte
has been received, the data is automatically sent. The duration
of the transmission depends on the quality of the RF link and the
number of bytes that you have in the buffer. Use the "Busy" output
to see when the transmission task has been completed and the buffer
is ready to receive the next data packet.

The word "customizable" probably means that you can order modules
with a different baud rate in case your device is not able to
use the baud rate 19200. (Probably a minimum quantity will apply
for this special firmware).

The module can use one of 64 channels. Make sure that both modules
use the same channel.

Best regards,

Luciano