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[avrdude-dev] STK500v2 paged mode EEPROM fixes

From: Joerg Wunsch
Subject: [avrdude-dev] STK500v2 paged mode EEPROM fixes
Date: Wed, 23 Aug 2006 00:13:07 +0200
User-agent: Mutt/1.5.11

I just committed a fix for the following bugs, probably the most
annoying bug that remained since the introduction of the STK500v2

bug #17199: EEPROM fails verification on ATmega645 with pony-stk200

bug #16849: EEPROM write fails for AT90USB1287 with mode 0x41

bug #15146: stk500v2_paged_write: loadpage instruction not defined for

The fix was to add loadpage and writepage instructions to the EEPROM
sections of all AVRs that have an EEPROM organized in pages (well, a
*really* boring task), and to prevent avr_write_byte_default() from
trying to use paged memory access unless the memory is marked "paged".

Please everybody who is able to build from CVS, verify this fixes all
outstanding issues.  EEPROM write should now be possible for all AVRs,
regardless of whether using the -U eeprom:w:... option or from within
terminal mode.

The only restriction is that both, high-voltage programming as well as
JTAG page programming (i. e. the -U option when applied to a JTAG ICE)
are not performing a memory erase on EEPROM before programming, so
they can only program bits from logic `1' to logic `0'.

Thanks to everybody reporting these bugs, and in particular to Bob
Paddock who analyzed the problem, so it's been easy to implement the

cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)

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