gnupic: Re: [gnupic] Cannot get 18f252 to blink
Subject:
Re: [gnupic] Cannot get 18f252 to blink
From:
Samuel Tardieu ####@####.####
Date:
24 Oct 2006 22:24:48 +0100
Message-Id: <2006-10-24-23-24-38+trackit+sam@rfc1149.net>
On 24/10, David Froseth wrote:
| Also, I think that with the 18f parts, all of the Special Function
| Registers (0x0f80-0x0fff) and the first 128 bytes of data memory
| (0x0000-0x007f) are easily accessed through the 'Access Bank'. No bank
| switching is necessary. I definitely could be missing something on
| this, though, since I cannot get this simple program running.
Not quite: the split is not at 0x80. Through the access bank, you get
memory from 0x00 to 0x5f and special registers from 0xf60 to 0xfff. You
can access most special registers there however, but it is not usable for
many CAN-related registers which are located between 0xf00 and 0xf5f.
Sam
