Re: [avrdude-dev] [avr910] Programing paged flash memory?

[Theodore A. Roth]

On Tue, 13 May 2003, Theodore A. Roth wrote:

:)The information we need in already in the config fine (paged=<yes/no>, 
:)page_size=<sz>), so it should not be too difficult to add it.

Ok, it was rather trivial so I knocked it out. I have committed the attached 
patch.

I think this should be compatible with the older (pre 2.0) avr910 firmware 
which doesn't seem to support either paged writes or addr-auto-incr.

Comparing the new avrdude output with uisp, I see a slight difference at the 
page boundary. For uisp:


Loading data to address: 127 (page_addr_fetched=Yes)
Transmit: { C [43] . [ef] }
Receive: { . [0d] }
Loading data to address: 128 (page_addr_fetched=Yes)
Transmit: { A [41] . [00] . [00] }
Receive: { . [0d] }
Transmit: { m [6d] }
Receive: { . [0d] }
Transmit: { A [41] . [00] @ [40] }
Receive: { . [0d] }
Transmit: { c [63] . [0a] }
Receive: { . [0d] }
Loading data to address: 129 (page_addr_fetched=Yes)
Transmit: { C [43] . [95] }


and from avrdude:


avrdude: Send: C [43] . [ef]
avrdude: Recv: . [0d]
avrdude: Send: c [63] . [0f]
avrdude: Recv: . [0d]
avrdude: Send: C [43] . [ef]
avrdude: Recv: . [0d]
avrdude: Send: A [41] . [00] . [00]
avrdude: Recv: . [0d]
avrdude: Send: m [6d]
avrdude: Recv: . [0d]
avrdude: Send: c [63] . [0a]
avrdude: Recv: . [0d]
avrdude: Send: C [43] . [95]
avrdude: Recv: . [0d]


Uisp seems to send the addr before and after the 'm' command, while avrdude 
doesn't. Programming the m163 is successful in with both programs though, so 
it doesn't seem to matter at least for the m163, but I'd like to see some 
more data points before I say it's correct.

Ted Roth

avr910-pg-wr-cmd.diff
Description: Text document