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AT91SAM9260 enable dataflash fails

Posted: Thu Aug 12, 2010 8:42 am
by huppeli
Hello,
I have my custom board equipped as AT91SAM9260-EK. I have USB and serial cables connected. I power up the device and "RomBOOT>" shows on terminal (115200 8n1n). But when I try "Enable NandFlash" on SAM-BA terminal shows crap:

RomBOOT
>;xDÛr—Yr¶°ÞÇwhîÁ7‡7‘7Ô@vxàÇ·±è3Î^ç`Û¹“×ð]6—@×±—@tJqnë ™—Îçwà—±¡—§°‡]t—@—1—@74··à—7·ÉÇ7Ï@§¶¹Ø3˜fsÎ`ç`á×Îç˜vg Y×1Á¿“×1‘綦¨sØß×··Áç7s×ð]6—@ç6°ÞÇwnìÁ77‘Çt0Ñ73ðt™aÇèÐfΰ‡rx‡ìM1†žvwÈçvnÃ77È'—7ï³æs6Þ7{Ñvvѧ×wr×ðÝžÌYrÀvî3§7ßÉr=Às|pç@#3wß7wÙ'—7ßÉr=Às|ès8àäÂÇ·7Ø×ç6ØÀgäpƒçp1Øé7rï6ÈÇ7ör<—ð]76À0Æ—çwsÉ'trÈ'r=Às|æs8àvc±ç†c
ÿ]7d—@p¡ÞÇv0ßçw0ÃÇ·1ès$Ç÷7·Ùw33Àgäp±—Ù—1çÇvzé7r=€c–—ð

SAM-BA hangs up and says "not responding".

What goes wrong? Why RomBOOT shows up nicely but then only crap?

With the kit everything goes fine:

RomBOOT
>-I- -- NandFlash ISP applet 2.10 --
-I- -- AT91SAM9260-EK
-I- -- Compiled: Jul 12 2010 15:01:04 --
-I- INIT command
-I- Nandflash ID is 0x9510DAEC
-I- Nandflash driver initialized
-I- pageSize : 0x800 blockSize : 0x20000 blockNb : 0x800 bus width : 8
-I- bufferAddr : 0x20003e34
-I- End of applet (command : 0 --- status : 0)


Any help would be appreciated!

Thanks, Heikki

Re: AT91SAM9260 enable dataflash fails

Posted: Thu Aug 12, 2010 8:01 pm
by falingtrea
Biggest problem I have run into is attachment issues with the BGA. Try reflowing the AT91SAM9260, it is possible that some of the signals controlling the NAND Flash are not connected.