[fpc-pascal] Status of Lazarus

Alexey Pavluchenko pavluchenko at isp.kiev.ua
Mon Oct 17 12:47:09 CEST 2005

Hello Felipe,

Monday, October 17, 2005, 1:08:00 PM, you wrote:

FMdC> On 10/17/05, David Chandler <david at davidchandler.com> wrote:
>> I don't have a USB interface in the DOS version--just RS232.  I was
>> hoping I could find others who could point the way on the USB issue.

FMdC> What is RS232??

Standard point-to-point serial link (the thing called "COM Port" on
PC). "RS232" is the name of an EIA standard which specifies electrical
characteristics and other interface details.

FMdC> Well, if you are already good at other hardware interfaces you may
FMdC> even learn how to create the USB one by googling. I found quite a bit
FMdC> of information about ISA Cards, including PCB schematics on google.

USB is much more complex than ISA, especially on software side.
Fortunately, due to its popularity there is quite a lot of
out-of-the-box solutions. Most of them are not for free though. Check
e.g. http://www.lvr.com/usb.htm.

Best regards,

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