What about using the SPI bitbang driver for the AT91??<br><br><div><span class="gmail_quote">2007/10/25, Ulf Samuelsson <<a href="mailto:ulf@atmel.com">ulf@atmel.com</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
ons 2007-10-24 klockan 21:34 +0300 skrev Ivan Kuten:<br>> ><br>> > During the 1st boot, Dropbear creates and "writes" the generated keys, maybe<br>> > is this *write* operation the one screwing up the dataflash?
<br>> ><br>><br>> We have similar problems with Dataflash&RM9200<br>> *write* operation is unreliable - we had corrupted filesystem after reboot.<br>> Our solution was to use r/o only on dataflash.<br>
><br><br>I would reduce speed to 5 Mbps or lower. or implement the external gate.<br>Moving to the AT91SAM9260 is of course a nice alternative.<br>Lower cost, (soon) much higher speed (with the AT91SAM9260A)<br>Better BootROM (I defined it :-)
<br><br><br>><br>> Best regards,<br>> Ivan<br>> --------------------------------<br>> Embedded Linux engineer,<br>> Promwad Company: <a href="http://www.promwad.com/">http://www.promwad.com/</a><br>> Homepage :
<a href="http://www.ivankuten.com/">http://www.ivankuten.com/</a><br>> --------------------------------<br>--<br>Best Regards,<br>Ulf Samuelsson<br><br></blockquote></div><br>