gnupic: Programming the 16f870
Subject:
Re: Programming the 16f870
From:
Ralf Forsberg ####@####.####
Date:
21 Dec 2001 12:22:28 -0000
Message-Id: <20011221122040.GA591@home.se>
On Fri, Dec 21, 2001 at 12:54:09PM +0100, Bas Wijnen wrote:
> The source of the picwrite program is there too. It is suid root so it can
> write to the port (which is really dirty, but I don't know how to use the
> parport drivers and didn't feel like learning it since it's just for myself
> anyway).
It's easy to use ppdev. Here's an example with no error checking:
fd = open("/dev/parport0", O_RDWR);
ioctl(fd,PPCLAIM);
data = 0x05;
ioctl (fd, PPWDATA, &data);
ioctl (fd, PPRSTATUS, &data);
printf("status = %d\n",data);
You can look at paraface in gpsim/modules, for another example.
/ Ralf
