gnupic: love this bootloader (for pic16f/18f)
Subject:
Re: love this bootloader (for pic16f/18f)
From:
Snail Instruments ####@####.####
Date:
19 Jan 2005 11:12:03 +0000
Message-Id: <6.1.2.0.0.20050119115713.05c61af0@pop.iol.cz>
>Some on-PIC bootloaders weigh in at up to 1024 words - embarrassing!
I run succesfully a bootloader accepting *.hex file for a couple of years.
It does minimum safety check (not to override itself), reports errors -
line format & checksum, verify failed. Uploads both program and EEPROM
memory, size under 256words. On a 14bit core to be precise. It needs no
other host program but terminal (even windows hyperterminal will do :).
The 3 instruction issue is handled in the assembly source. Anyway, it is
not 100% safe to blindly relocate the code by bootloader, if the third
instruction was a conditional jump, it doesn't work.
Josef
