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Page 71 of 97
Issue: 1.04
The microK has a 256-byte circular receive buffer. If the buffer becomes full, it
de-asserts RTS (connected to CTS on your PC through the null-modem cable) to
prevent further data being sent. If the PC continues to send data this will be
ignored (lost) until the microK has had time to make space in the buffer by
processing commands. The microK does not use its CTS to control data it
transmits.
You can use Hyperterminal (or another terminal emulator) to communicate with
the microK via the RS232 connection. Hyperterminal is part of the standard
Windows installation, usually located in the Accessories|Communications folder.
If you have installed a minimum (laptop) or custom configuration (without this
component) for your Windows operating system, you may need to install
Hyperterminal from your original Windows media.
Start Hyperterminal to setup a new connection. Type in a name for the
connection (such as microK) and select an icon. In the next window, select the
PC’s COM port to which you have connected your microK from the
Connect
using
drop-down list and click OK. In the next window, enter the data format for
the microK’s RS232 interface:
Click OK to open a Hyperterminal session with the microK. Now save (using
File:Save As) the Hyperterminal connection so that in future you only have to
click on this icon to open an RS232 connection with your microK.
