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Full Discussion: Connecting PIC16F877A using Easypic5 via RS232 with Linux
Top Forums UNIX for Dummies Questions & Answers Connecting PIC16F877A using Easypic5 via RS232 with Linux Post 302593314 by Corona688 on Thursday 26th of January 2012 12:48:36 PM
Old 01-26-2012
We are not "on call" here. If you don't get a reply instantly, wait!

Let me hunt up the code I use...

---------- Post updated at 11:48 AM ---------- Previous update was at 11:44 AM ----------

Try perror("read failed"); to see why read failed.

I rolled my own serial-port-opening function to make ordinary rs232 communication less of a hassle, with the result being tcgets.h and tcgets.c. You can open a serial port like int fd=termios_open("/dev/ttyS0", "2400N81");. Even if you don't use it, it should hopefully be a good example
 

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LEARN ABOUT DEBIAN

ucycom

UCYCOM(4)						   BSD Kernel Interfaces Manual 						 UCYCOM(4)

NAME

     ucycom -- device driver for Cypress CY7C63743 and CY7C64013 USB to RS232 bridges

SYNOPSIS

     To compile this driver into the kernel, place the following line in your kernel configuration file:

	   device ucycom

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   ucycom_load="YES"

DESCRIPTION

     The ucycom driver provides support for the Cypress CY7C63743 and CY7C64013 bridge chips.  These chips were designed to provide a low-cost
     transition path to USB for existing RS232 devices, and have fairly limited capabilities.

     The ucycom driver behaves like a tty(4).

HARDWARE

     The ucycom driver currently supports the following devices which incorporate Cypress USB to RS232 bridge chips:

     o	 DeLorme Earthmate USB GPS receiver

SEE ALSO

     tty(4), usb(4)

HISTORY

     The ucycom driver first appeared in FreeBSD 5.3.

AUTHORS

     The ucycom driver and this manual page were written by Dag-Erling Smorgrav <des@FreeBSD.org>.

BSD
								 November 22, 2006							       BSD
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