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COM2 Flow Control on Domino


#1

Hello,
I have an ignorant question:
What do I need to do to take advantage of the flow control on Domino’s COM2? I am using BlueSMIRF BT modem from sparkfun (shematic here: http://www.sparkfun.com/datasheets/RF/BlueSMiRF-RPSMA-Schematic.pdf)
I connected Rx pins to Tx pins, and CTC to RTS (Domino Rx to BT Tx, Domino CTC to BT RTS).

I started messing with the flow control becuase I get buffer overruns ocasionally, so I was hoping to prevent that with the hardware flow control, but for some reason nothing changed… Is there something special I need to do?

Thank you
Yuriy


#2

You still get buffer overflow? This should be impossible! Unless your device keep on sending to FEZ even though FEZ signaled it not to send data


#3

Are RTS and CTC pins supposed to be crossed or straight?
Also, I have flow control set to Hardware in the port settings on windows, but on FEZ I don’t have any code related to the flow control (is it 100% hardware on FEZ, or is ther a setting I’m missing?)

Thank you
Yuriy


#4

crossed


#5

Yuriy:
I got this info from here:

[quote]The module defaults to 9600/8/1/hardware flow control, and it’s default service is a serial port. The right way to connect is to do the level translation on TX/RX/CTS/RTS, then connect TX to RX, RX to TX, CTS to RTS and RTS to CTS
[/quote]

http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=67&sipp=1&page=3