hello: I am writing a device driver for PC104. I want to write data to the address (D0000). Can I use these code: unsigned char *address = (unsigned char *)0xD0000000; *address=data; Thank you! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.rtems.org/pipermail/users/attachments/20120628/250939b6/attachment.html>