I've got a general question concerning serial connection (I'm sort of a newbe in hardware and am having trouble managing a serial connection for a while now ) : does anyone know what hold_rx and hold_tx signals might stand for?
The datasheet I've got doesn't give enough information on that It just says the hold_* input pins are used to impelement hardware handshake of transmit direction, and we're not using any hardware flow control... So, should I put these input pins to high or to low??
You're rigt. Actually, I hadn't considered that! But then, even assuming that these hold_rx and tx signals are in fact the rts ans cts signals, should I put them to 0 or 1 (or float) if we're not using any hardware flow control ?
If you are not using hardware flow control it should configure the chips to take no notice of these lines.
Actually, the problem seems still seems to come from the hardware : I've been trying to send simple characters through a terminal application to my board (I let drop the very complex application I had previously been working on, just to make sure that the problem didn't come from the software). The characters I've sent are supposed to configure my board with a certain configuration (mentioned by my technical support contact) but we're still not receiving anything from the board (it is supposed to answer with two specific bytes, but there's nothing received :s ). So I think the problem must be with our connections, that we have re-tested and which seem OK though!
You are asking questions about a specific product, you need to ask these questions of the developers of the product. What is this board you are trying to communicate with ?
Oh and how should I mark the thread as resolved please?